Cisco Security Advisories

Cisco Videoscape Distribution Suite Cache Server Denial of Service Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the cache server within Cisco Videoscape Distribution Suite (VDS) for Television could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted appliance.

The vulnerability is due to excessive mapped connections exhausting the allotted resources within the system. An attacker could exploit this vulnerability by sending large amounts of inbound traffic to a device with the intention of overloading certain resources. A successful exploit could cause the device to reload, resulting in a DoS condition.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-vds A vulnerability in the cache server within Cisco Videoscape Distribution Suite (VDS) for Television could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted appliance.

The vulnerability is due to excessive mapped connections exhausting the allotted resources within the system. An attacker could exploit this vulnerability by sending large amounts of inbound traffic to a device with the intention of overloading certain resources. A successful exploit could cause the device to reload, resulting in a DoS condition.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-vds
Security Impact Rating: High
CVE: CVE-2017-6745
Categories: Security Alerts

Cisco Unified Communications Manager Directory Traversal Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the web framework of Cisco Unified Communications Manager could allow an authenticated, remote attacker to access arbitrary files in the context of the web root directory structure on an affected device.

The vulnerability is due to insufficient input validation by the affected software. An attacker could exploit this vulnerability by using directory traversal techniques to read files in the web root directory structure on the Cisco Unified Communications Manager filesystem.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ucm1 A vulnerability in the web framework of Cisco Unified Communications Manager could allow an authenticated, remote attacker to access arbitrary files in the context of the web root directory structure on an affected device.

The vulnerability is due to insufficient input validation by the affected software. An attacker could exploit this vulnerability by using directory traversal techniques to read files in the web root directory structure on the Cisco Unified Communications Manager filesystem.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ucm1
Security Impact Rating: Medium
CVE: CVE-2017-6758
Categories: Security Alerts

Cisco Unified Communications Manager SQL Injection Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in Cisco Unified Communications Manager could allow an authenticated, remote attacker to conduct a blind SQL injection attack.

The vulnerability is due to a failure to validate user-supplied input used in SQL queries that bypass protection filters. An attacker could exploit this vulnerability by sending crafted URLs that include SQL statements. An exploit could allow the attacker to modify or delete entries in some database tables, affecting the integrity of the data.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ucm A vulnerability in Cisco Unified Communications Manager could allow an authenticated, remote attacker to conduct a blind SQL injection attack.

The vulnerability is due to a failure to validate user-supplied input used in SQL queries that bypass protection filters. An attacker could exploit this vulnerability by sending crafted URLs that include SQL statements. An exploit could allow the attacker to modify or delete entries in some database tables, affecting the integrity of the data.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ucm
Security Impact Rating: Medium
CVE: CVE-2017-6757
Categories: Security Alerts

Cisco Smart Net Total Care Software Collector Appliance SQL Injection Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the web-based management interface of the Cisco Smart Net Total Care (SNTC) Software Collector Appliance could allow an authenticated, remote attacker to perform a read-only, blind SQL injection attack, which could allow the attacker to compromise the confidentiality of the system through SQL timing attacks.

The vulnerability is due to insufficient input validation of certain user-supplied fields that are subsequently used by the affected software to build SQL queries. An attacker could exploit this vulnerability by submitting crafted URLs, which are designed to exploit the vulnerability, to the affected software. To execute an attack successfully, the attacker would need to submit a number of requests to the affected software. A successful exploit could allow the attacker to determine the presence of values in the SQL database of the affected software.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-sntc A vulnerability in the web-based management interface of the Cisco Smart Net Total Care (SNTC) Software Collector Appliance could allow an authenticated, remote attacker to perform a read-only, blind SQL injection attack, which could allow the attacker to compromise the confidentiality of the system through SQL timing attacks.

The vulnerability is due to insufficient input validation of certain user-supplied fields that are subsequently used by the affected software to build SQL queries. An attacker could exploit this vulnerability by submitting crafted URLs, which are designed to exploit the vulnerability, to the affected software. To execute an attack successfully, the attacker would need to submit a number of requests to the affected software. A successful exploit could allow the attacker to determine the presence of values in the SQL database of the affected software.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-sntc
Security Impact Rating: Medium
CVE: CVE-2017-6754
Categories: Security Alerts

Cisco Prime Collaboration Provisioning Tool Pervasive Cross-Site Request Forgery Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the Web UI Application of the Cisco Prime Collaboration Provisioning Tool could allow an unauthenticated, remote attacker to execute unwanted actions.

The vulnerability is due to a lack of defense against cross-site request forgery (CSRF) attacks. An attacker could exploit this vulnerability by forcing the user’s browser to perform any action authorized for that user.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-pcpt1 A vulnerability in the Web UI Application of the Cisco Prime Collaboration Provisioning Tool could allow an unauthenticated, remote attacker to execute unwanted actions.

The vulnerability is due to a lack of defense against cross-site request forgery (CSRF) attacks. An attacker could exploit this vulnerability by forcing the user’s browser to perform any action authorized for that user.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-pcpt1
Security Impact Rating: Medium
CVE: CVE-2017-6756
Categories: Security Alerts

Cisco Prime Collaboration Provisioning Tool UpgradeManager File Write Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the UpgradeManager of the Cisco Prime Collaboration Provisioning Tool could allow an authenticated, remote attacker to write arbitrary files as root on the system.

The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by triggering the upgrade package installation functionality.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-pcpt A vulnerability in the UpgradeManager of the Cisco Prime Collaboration Provisioning Tool could allow an authenticated, remote attacker to write arbitrary files as root on the system.

The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by triggering the upgrade package installation functionality.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-pcpt
Security Impact Rating: Medium
CVE: CVE-2017-6759
Categories: Security Alerts

Cisco Meeting Server H.264 Protocol Denial of Service Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system.

The vulnerability exists because the affected application does not properly validate Fragmentation Unit (FU-A) protocol packets. An attacker could exploit this vulnerability by sending a crafted H.264 FU-A packet through the affected application. A successful exploit could allow the attacker to cause a DoS condition on the affected system due to an unexpected restart of the CMS media process on the system. Although the CMS platform continues to operate and only the single, affected CMS media process is restarted, a brief interruption of media traffic for certain users could occur.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system.

The vulnerability exists because the affected application does not properly validate Fragmentation Unit (FU-A) protocol packets. An attacker could exploit this vulnerability by sending a crafted H.264 FU-A packet through the affected application. A successful exploit could allow the attacker to cause a DoS condition on the affected system due to an unexpected restart of the CMS media process on the system. Although the CMS platform continues to operate and only the single, affected CMS media process is restarted, a brief interruption of media traffic for certain users could occur.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms
Security Impact Rating: Medium
CVE: CVE-2017-6763
Categories: Security Alerts

Cisco Identity Services Engine Authentication Bypass Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the authentication module of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass local authentication.

The vulnerability is due to improper handling of authentication requests and policy assignment for externally authenticated users. An attacker could exploit this vulnerability by authenticating with a valid external user account that matches an internal username and incorrectly receiving the authorization policy of the internal account. An exploit could allow the attacker to have Super Admin privileges for the ISE Admin portal.

This vulnerability does not affect endpoints authenticating to the ISE.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ise A vulnerability in the authentication module of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass local authentication.

The vulnerability is due to improper handling of authentication requests and policy assignment for externally authenticated users. An attacker could exploit this vulnerability by authenticating with a valid external user account that matches an internal username and incorrectly receiving the authorization policy of the internal account. An exploit could allow the attacker to have Super Admin privileges for the ISE Admin portal.

This vulnerability does not affect endpoints authenticating to the ISE.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ise
Security Impact Rating: High
CVE: CVE-2017-6747
Categories: Security Alerts

Cisco Firepower System Software Secure Sockets Layer Policy Bypass Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the Secure Sockets Layer (SSL) Decryption and Inspection feature of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass the SSL policy for decrypting and inspecting traffic on an affected system.

The vulnerability is due to unexpected interaction with Known Key and Decrypt and Resign configuration settings of SSL policies when the affected software receives unexpected SSL packet headers. An attacker could exploit this vulnerability by sending a crafted SSL packet through an affected device in a valid SSL session. A successful exploit could allow the attacker to bypass the SSL decryption and inspection policy for the affected system, which could allow traffic to flow through the system without being inspected.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-fpw A vulnerability in the Secure Sockets Layer (SSL) Decryption and Inspection feature of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass the SSL policy for decrypting and inspecting traffic on an affected system.

The vulnerability is due to unexpected interaction with Known Key and Decrypt and Resign configuration settings of SSL policies when the affected software receives unexpected SSL packet headers. An attacker could exploit this vulnerability by sending a crafted SSL packet through an affected device in a valid SSL session. A successful exploit could allow the attacker to bypass the SSL decryption and inspection policy for the affected system, which could allow traffic to flow through the system without being inspected.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-fpw
Security Impact Rating: Medium
CVE: CVE-2017-6766
Categories: Security Alerts

Cisco Jabber Guest Server Cross-Site Scripting Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the web-based management interface of Cisco Jabber Guest Server could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of the affected software.

The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information.

There are no workarounds that address this vulnerability.

For additional information about cross-site scripting attacks and the methods used to exploit these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Scripting (XSS) Threat Vectors and the OWASP reference page Cross-site Scripting (XSS).

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-cj A vulnerability in the web-based management interface of Cisco Jabber Guest Server could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of the affected software.

The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information.

There are no workarounds that address this vulnerability.

For additional information about cross-site scripting attacks and the methods used to exploit these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Scripting (XSS) Threat Vectors and the OWASP reference page Cross-site Scripting (XSS).

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-cj
Security Impact Rating: Medium
CVE: CVE-2017-6762
Categories: Security Alerts

Cisco Finesse Reflected Cross-Site Scripting Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the web-based management interface of Cisco Finesse could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device.

The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information.

There are no workarounds that address this vulnerability.

For additional information about cross-site scripting attacks and the methods used to exploit these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Scripting (XSS) Threat Vectors and the OWASP reference page Cross-site Scripting (XSS).

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-cf A vulnerability in the web-based management interface of Cisco Finesse could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device.

The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information.

There are no workarounds that address this vulnerability.

For additional information about cross-site scripting attacks and the methods used to exploit these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Scripting (XSS) Threat Vectors and the OWASP reference page Cross-site Scripting (XSS).

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-cf
Security Impact Rating: Medium
CVE: CVE-2017-6761
Categories: Security Alerts

Cisco Adaptive Security Appliance Username Enumeration Information Disclosure Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to determine valid usernames. The attacker could use this information to conduct additional reconnaissance attacks.

The vulnerability is due to the interaction between Lightweight Directory Access Protocol (LDAP) and SSL Connection Profile when they are configured together. An attacker could exploit the vulnerability by performing a username enumeration attack to the IP address of the device. An exploit could allow the attacker to determine valid usernames.

There are workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-asa2 A vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to determine valid usernames. The attacker could use this information to conduct additional reconnaissance attacks.

The vulnerability is due to the interaction between Lightweight Directory Access Protocol (LDAP) and SSL Connection Profile when they are configured together. An attacker could exploit the vulnerability by performing a username enumeration attack to the IP address of the device. An exploit could allow the attacker to determine valid usernames.

There are workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-asa2
Security Impact Rating: Medium
CVE: CVE-2017-6752
Categories: Security Alerts

Cisco Adaptive Security Appliance WebVPN Cross-Site Scripting Vulnerability

Wed, 2017-08-02 14:00
A vulnerability in the web-based management interface of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device.

The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information.

Additional information about XSS attacks and potential mitigations can be found at:
There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-asa1 A vulnerability in the web-based management interface of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device.

The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information.

Additional information about XSS attacks and potential mitigations can be found at:
There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-asa1
Security Impact Rating: Medium
CVE: CVE-2017-6765
Categories: Security Alerts

Multiple Cisco Products OSPF LSA Manipulation Vulnerability

Thu, 2017-07-27 14:00
Multiple Cisco products are affected by a vulnerability involving the Open Shortest Path First (OSPF) Routing Protocol Link State Advertisement (LSA) database. This vulnerability could allow an unauthenticated, remote attacker to take full control of the OSPF Autonomous System (AS) domain routing table, allowing the attacker to intercept or black-hole traffic.

The attacker could exploit this vulnerability by injecting crafted OSPF packets. Successful exploitation could cause the targeted router to flush its routing table and propagate the crafted OSPF LSA type 1 update throughout the OSPF AS domain.

To exploit this vulnerability, an attacker must accurately determine certain parameters within the LSA database on the target router. This vulnerability can only be triggered by sending crafted unicast or multicast OSPF LSA type 1 packets. No other LSA type packets can trigger this vulnerability.

OSPFv3 is not affected by this vulnerability. Fabric Shortest Path First (FSPF) protocol is not affected by this vulnerability.

Workarounds that address this vulnerability are available.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170727-ospf Multiple Cisco products are affected by a vulnerability involving the Open Shortest Path First (OSPF) Routing Protocol Link State Advertisement (LSA) database. This vulnerability could allow an unauthenticated, remote attacker to take full control of the OSPF Autonomous System (AS) domain routing table, allowing the attacker to intercept or black-hole traffic.

The attacker could exploit this vulnerability by injecting crafted OSPF packets. Successful exploitation could cause the targeted router to flush its routing table and propagate the crafted OSPF LSA type 1 update throughout the OSPF AS domain.

To exploit this vulnerability, an attacker must accurately determine certain parameters within the LSA database on the target router. This vulnerability can only be triggered by sending crafted unicast or multicast OSPF LSA type 1 packets. No other LSA type packets can trigger this vulnerability.

OSPFv3 is not affected by this vulnerability. Fabric Shortest Path First (FSPF) protocol is not affected by this vulnerability.

Workarounds that address this vulnerability are available.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170727-ospf
Security Impact Rating: Medium
CVE: CVE-2017-6770
Categories: Security Alerts

Cisco Access Control System Stored Cross-Site Scripting Vulnerability

Wed, 2017-07-26 14:00
A vulnerability in the web-based management interface of the Cisco Secure Access Control System (ACS) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web interface of the affected system.

The vulnerability is due to insufficient input validation of user-supplied values and a lack of encoding of user-supplied data. An attacker could exploit this vulnerability by convincing a user to click a malicious link.

Additional information about XSS attacks and potential mitigations can be found at the following links:

https://tools.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20060922-understanding-xss
https://www.owasp.org/index.php/Cross-site_Scripting_(XSS)

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-acs A vulnerability in the web-based management interface of the Cisco Secure Access Control System (ACS) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web interface of the affected system.

The vulnerability is due to insufficient input validation of user-supplied values and a lack of encoding of user-supplied data. An attacker could exploit this vulnerability by convincing a user to click a malicious link.

Additional information about XSS attacks and potential mitigations can be found at the following links:

https://tools.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20060922-understanding-xss
https://www.owasp.org/index.php/Cross-site_Scripting_(XSS)

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-acs
Security Impact Rating: Medium
CVE: CVE-2017-6769
Categories: Security Alerts

Cisco IOS and IOS XE Software Autonomic Networking Infrastructure Denial of Service Vulnerability

Wed, 2017-07-26 14:00
A vulnerability in the Autonomic Networking feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause autonomic nodes of an affected system to reload, resulting in a denial of service (DoS) condition.

The vulnerability is due to an unknown condition in the Autonomic Networking code of the affected software. An attacker could exploit this vulnerability by replaying captured packets to reset the Autonomic Control Plane (ACP) channel of an affected system. A successful exploit could allow the attacker to reset the ACP channel of an affected system and consequently cause the affected device to reload, resulting in a DoS condition.

Cisco has not released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-anidos A vulnerability in the Autonomic Networking feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause autonomic nodes of an affected system to reload, resulting in a denial of service (DoS) condition.

The vulnerability is due to an unknown condition in the Autonomic Networking code of the affected software. An attacker could exploit this vulnerability by replaying captured packets to reset the Autonomic Control Plane (ACP) channel of an affected system. A successful exploit could allow the attacker to reset the ACP channel of an affected system and consequently cause the affected device to reload, resulting in a DoS condition.

Cisco has not released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-anidos
Security Impact Rating: High
CVE: CVE-2017-6663
Categories: Security Alerts

Cisco IOS XE Software Autonomic Networking Infrastructure Certificate Revocation Vulnerability

Wed, 2017-07-26 14:00
A vulnerability in the Autonomic Networking feature of Cisco IOS XE Software could allow an unauthenticated, remote, autonomic node to access the Autonomic Networking infrastructure of an affected system, after the certificate for the autonomic node has been revoked.

The vulnerability exists because the affected software does not transfer certificate revocation lists (CRLs) across Autonomic Control Plane (ACP) channels. An attacker could exploit this vulnerability by connecting an autonomic node, which has a known and revoked certificate, to the autonomic domain of an affected system. A successful exploit could allow the attacker to insert a previously trusted autonomic node into the autonomic domain of an affected system after the certificate for the node has been revoked.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-anicrl A vulnerability in the Autonomic Networking feature of Cisco IOS XE Software could allow an unauthenticated, remote, autonomic node to access the Autonomic Networking infrastructure of an affected system, after the certificate for the autonomic node has been revoked.

The vulnerability exists because the affected software does not transfer certificate revocation lists (CRLs) across Autonomic Control Plane (ACP) channels. An attacker could exploit this vulnerability by connecting an autonomic node, which has a known and revoked certificate, to the autonomic domain of an affected system. A successful exploit could allow the attacker to insert a previously trusted autonomic node into the autonomic domain of an affected system after the certificate for the node has been revoked.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-anicrl
Security Impact Rating: Medium
CVE: CVE-2017-6664
Categories: Security Alerts

Cisco IOS and IOS XE Software Autonomic Control Plane Channel Information Disclosure Vulnerability

Wed, 2017-07-26 14:00
A vulnerability in the Autonomic Networking feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to reset the Autonomic Control Plane (ACP) of an affected system and view ACP packets that are transferred in clear text within an affected system.

The vulnerability is due to unknown reasons. An attacker could exploit this vulnerability by capturing and replaying ACP packets that are transferred within an affected system. A successful exploit could allow the attacker to reset the ACP of an affected system, resulting in a denial of service (DoS) condition. A successful exploit could also allow the attacker to capture and view ACP packets, which should have been encrypted over the ACP, in clear text.

Cisco has not released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-aniacp A vulnerability in the Autonomic Networking feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to reset the Autonomic Control Plane (ACP) of an affected system and view ACP packets that are transferred in clear text within an affected system.

The vulnerability is due to unknown reasons. An attacker could exploit this vulnerability by capturing and replaying ACP packets that are transferred within an affected system. A successful exploit could allow the attacker to reset the ACP of an affected system, resulting in a denial of service (DoS) condition. A successful exploit could also allow the attacker to capture and view ACP packets, which should have been encrypted over the ACP, in clear text.

Cisco has not released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-aniacp
Security Impact Rating: High
CVE: CVE-2017-6665
Categories: Security Alerts

Cisco ASR 5000 Series Aggregation Services Routers GGSN Gateway Redirect Vulnerability

Wed, 2017-07-19 14:00
A vulnerability in the gateway GPRS support node (GGSN) of Cisco ASR 5000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to redirect HTTP traffic sent to an affected device.

The vulnerability exists because the affected device does not sufficiently validate HTTP traffic that contains one or more packets with additional bytes at the end of the packet. An attacker could exploit this vulnerability by changing the properties of a payload in HTTP traffic that is sent to an affected device. A successful exploit could allow the attacker to pipeline requests through an affected device without verifying and accounting for the requests.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr A vulnerability in the gateway GPRS support node (GGSN) of Cisco ASR 5000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to redirect HTTP traffic sent to an affected device.

The vulnerability exists because the affected device does not sufficiently validate HTTP traffic that contains one or more packets with additional bytes at the end of the packet. An attacker could exploit this vulnerability by changing the properties of a payload in HTTP traffic that is sent to an affected device. A successful exploit could allow the attacker to pipeline requests through an affected device without verifying and accounting for the requests.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr
Security Impact Rating: Medium
CVE: CVE-2017-6612
Categories: Security Alerts

Cisco Web Security Appliance Administrative Interface Access Control Bypass Vulnerability

Wed, 2017-07-19 14:00
A vulnerability in the web proxy functionality of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to forward traffic from the web proxy interface of an affected device to the administrative management interface of an affected device.

The vulnerability exists because the affected software fails to deny traffic that is forwarded from the web proxy interface to the administrative management interface of a device. An attacker could exploit this vulnerability by sending a crafted stream of HTTP or HTTPS traffic to the web proxy interface of an affected device. A successful exploit could allow traffic to reach the administrative management interface of the affected device although the traffic should have been dropped.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa5 A vulnerability in the web proxy functionality of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to forward traffic from the web proxy interface of an affected device to the administrative management interface of an affected device.

The vulnerability exists because the affected software fails to deny traffic that is forwarded from the web proxy interface to the administrative management interface of a device. An attacker could exploit this vulnerability by sending a crafted stream of HTTP or HTTPS traffic to the web proxy interface of an affected device. A successful exploit could allow traffic to reach the administrative management interface of the affected device although the traffic should have been dropped.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa5
Security Impact Rating: Medium
CVE: CVE-2017-6751
Categories: Security Alerts

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