Cisco Security Advisories

Cisco Unified Intelligence Center User Interface Cross-Site Request Forgery Vulnerability

Wed, 2017-09-20 14:00
A vulnerability in the Cisco Unified Intelligence Center could allow an unauthenticated, remote attacker to execute unwanted actions.

The vulnerability is due to a lack of cross-site request forgery (CSRF) protection. An attacker could exploit this vulnerability by tricking the user of a web application into executing an adverse action.

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-20170920-cuic1
Security Impact Rating: Medium
CVE: CVE-2017-12253
Categories: Security Alerts

Cisco IOS and IOS XE Software Cluster Management Protocol Remote Code Execution Vulnerability

Wed, 2017-09-20 09:31
A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges.

The Cluster Management Protocol utilizes Telnet internally as a signaling and command protocol between cluster members. The vulnerability is due to the combination of two factors:
  • The failure to restrict the use of CMP-specific Telnet options only to internal, local communications between cluster members and instead accept and process such options over any Telnet connection to an affected device, and
  • The incorrect processing of malformed CMP-specific Telnet options.
An attacker could exploit this vulnerability by sending malformed CMP-specific Telnet options while establishing a Telnet session with an affected Cisco device configured to accept Telnet connections. An exploit could allow an attacker to execute arbitrary code and obtain full control of the device or cause a reload of the affected device.

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-20170317-cmp
Security Impact Rating: Critical
CVE: CVE-2017-3881
Categories: Security Alerts

Multiple Vulnerabilities in OpenSSL Affecting Cisco Products: September 2016

Fri, 2017-09-15 21:17
On September 22, 2016, the OpenSSL Software Foundation released an advisory that describes 14 vulnerabilities. Of these 14 vulnerabilities, the OpenSSL Software Foundation classifies one as “Critical Severity,” one as “Moderate Severity,” and the other 12 as “Low Severity.”

Subsequently, on September 26, the OpenSSL Software Foundation released an additional advisory that describes two new vulnerabilities. These vulnerabilities affect the OpenSSL versions that were released to address the vulnerabilities disclosed in the previous advisory. One of the new vulnerabilities was rated as “High Severity” and the other as “Moderate Severity.”

Of the 16 released vulnerabilities:
  • Fourteen track issues that could result in a denial of service (DoS) condition
  • One (CVE-2016-2183, aka SWEET32) tracks an implementation of a Birthday attack against Transport Layer Security (TLS) block ciphers that use a 64-bit block size that could result in loss of confidentiality
  • One (CVE-2016-2178) is a timing side-channel attack that, in specific circumstances, could allow an attacker to derive the private DSA key that belongs to another user or service running on the same system

Five of the 16 vulnerabilities exclusively affect the recently released OpenSSL versions that are part of the 1.1.0 release series, which has not yet been integrated into any Cisco product.

This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl On September 22, 2016, the OpenSSL Software Foundation released an advisory that describes 14 vulnerabilities. Of these 14 vulnerabilities, the OpenSSL Software Foundation classifies one as “Critical Severity,” one as “Moderate Severity,” and the other 12 as “Low Severity.”

Subsequently, on September 26, the OpenSSL Software Foundation released an additional advisory that describes two new vulnerabilities. These vulnerabilities affect the OpenSSL versions that were released to address the vulnerabilities disclosed in the previous advisory. One of the new vulnerabilities was rated as “High Severity” and the other as “Moderate Severity.”

Of the 16 released vulnerabilities:
  • Fourteen track issues that could result in a denial of service (DoS) condition
  • One (CVE-2016-2183, aka SWEET32) tracks an implementation of a Birthday attack against Transport Layer Security (TLS) block ciphers that use a 64-bit block size that could result in loss of confidentiality
  • One (CVE-2016-2178) is a timing side-channel attack that, in specific circumstances, could allow an attacker to derive the private DSA key that belongs to another user or service running on the same system

Five of the 16 vulnerabilities exclusively affect the recently released OpenSSL versions that are part of the 1.1.0 release series, which has not yet been integrated into any Cisco product.

This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl
Security Impact Rating: Medium
CVE: CVE-2016-2177,CVE-2016-2178,CVE-2016-2179,CVE-2016-2180,CVE-2016-2181,CVE-2016-2182,CVE-2016-2183,CVE-2016-6302,CVE-2016-6303,CVE-2016-6304,CVE-2016-6305,CVE-2016-6306,CVE-2016-6307,CVE-2016-6308,CVE-2016-6309,CVE-2016-7052
Categories: Security Alerts

Cisco Meeting Server TURN Server Unauthorized Access and Information Disclosure Vulnerability

Wed, 2017-09-13 14:00
A vulnerability in the Traversal Using Relay NAT (TURN) server included with Cisco Meeting Server (CMS) could allow an authenticated, remote attacker to gain unauthenticated or unauthorized access to components of or sensitive information in an affected system.

The vulnerability is due to an incorrect default configuration of the TURN server, which could expose internal interfaces and ports on the external interface of an affected system. An attacker could exploit this vulnerability by using a TURN server to perform an unauthorized connection to a Call Bridge, a Web Bridge, or a database cluster in an affected system, depending on the deployment model and CMS services in use. A successful exploit could allow the attacker to gain unauthenticated access to a Call Bridge or database cluster in an affected system or gain unauthorized access to sensitive meeting information in an affected system. To exploit this vulnerability, the attacker must have valid credentials for the TURN server of the affected system.

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-20170913-cmsturn A vulnerability in the Traversal Using Relay NAT (TURN) server included with Cisco Meeting Server (CMS) could allow an authenticated, remote attacker to gain unauthenticated or unauthorized access to components of or sensitive information in an affected system.

The vulnerability is due to an incorrect default configuration of the TURN server, which could expose internal interfaces and ports on the external interface of an affected system. An attacker could exploit this vulnerability by using a TURN server to perform an unauthorized connection to a Call Bridge, a Web Bridge, or a database cluster in an affected system, depending on the deployment model and CMS services in use. A successful exploit could allow the attacker to gain unauthenticated access to a Call Bridge or database cluster in an affected system or gain unauthorized access to sensitive meeting information in an affected system. To exploit this vulnerability, the attacker must have valid credentials for the TURN server of the affected system.

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-20170913-cmsturn
Security Impact Rating: Critical
CVE: CVE-2017-12249
Categories: Security Alerts

Cisco Aironet 1830 Series and 1850 Series Access Points Mobility Express Default Credential Vulnerability

Mon, 2017-09-11 16:20
A vulnerability in Cisco Aironet 1830 Series and Cisco Aironet 1850 Series Access Points running Cisco Mobility Express Software could allow an unauthenticated, remote attacker to take complete control of an affected device.

The vulnerability is due to the existence of default credentials for an affected device that is running Cisco Mobility Express Software, regardless of whether the device is configured as a master, subordinate, or standalone access point. An attacker who has layer 3 connectivity to an affected device could use Secure Shell (SSH) to log in to the device with elevated privileges. A successful exploit could allow the attacker to take complete control of the device.

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-20170405-ame A vulnerability in Cisco Aironet 1830 Series and Cisco Aironet 1850 Series Access Points running Cisco Mobility Express Software could allow an unauthenticated, remote attacker to take complete control of an affected device.

The vulnerability is due to the existence of default credentials for an affected device that is running Cisco Mobility Express Software, regardless of whether the device is configured as a master, subordinate, or standalone access point. An attacker who has layer 3 connectivity to an affected device could use Secure Shell (SSH) to log in to the device with elevated privileges. A successful exploit could allow the attacker to take complete control of the device.

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-20170405-ame
Security Impact Rating: Critical
CVE: CVE-2017-3834
Categories: Security Alerts

Apache Struts 2 Remote Code Execution Vulnerability Affecting Multiple Cisco Products: September 2017

Sat, 2017-09-09 15:00
On September 7, 2017, the Apache Software Foundation released a security bulletin that disclosed a vulnerability in the Freemarker tag functionality of the Apache Struts 2 package. The vulnerability could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system. The Apache Software Foundation classifies the vulnerability as a Medium Severity vulnerability. For more information about this vulnerability, refer to the Details section of this advisory.

Multiple Cisco products incorporate a version of the Apache Struts 2 package that is affected by this vulnerability.

This advisory will be updated as additional information becomes available.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170909-struts2-rce On September 7, 2017, the Apache Software Foundation released a security bulletin that disclosed a vulnerability in the Freemarker tag functionality of the Apache Struts 2 package. The vulnerability could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system. The Apache Software Foundation classifies the vulnerability as a Medium Severity vulnerability. For more information about this vulnerability, refer to the Details section of this advisory.

Multiple Cisco products incorporate a version of the Apache Struts 2 package that is affected by this vulnerability.

This advisory will be updated as additional information becomes available.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170909-struts2-rce
Security Impact Rating: Critical
CVE: CVE-2017-12611
Categories: Security Alerts

Multiple Vulnerabilities in Apache Struts 2 Affecting Cisco Products: September 2017

Thu, 2017-09-07 19:00
On September 5, 2017, the Apache Software Foundation released security bulletins that disclose three vulnerabilities in the Apache Struts 2 package. Of these vulnerabilities, the Apache Software Foundation classifies one as Critical Severity, one as Medium Severity, and one as Low Severity. For more information about the vulnerabilities, refer to the Details section of this advisory.

Multiple Cisco products incorporate a version of the Apache Struts 2 package that is affected by these vulnerabilities.

This advisory will be updated as additional information becomes available.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2 On September 5, 2017, the Apache Software Foundation released security bulletins that disclose three vulnerabilities in the Apache Struts 2 package. Of these vulnerabilities, the Apache Software Foundation classifies one as Critical Severity, one as Medium Severity, and one as Low Severity. For more information about the vulnerabilities, refer to the Details section of this advisory.

Multiple Cisco products incorporate a version of the Apache Struts 2 package that is affected by these vulnerabilities.

This advisory will be updated as additional information becomes available.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
Security Impact Rating: Critical
CVE: CVE-2017-9793,CVE-2017-9804,CVE-2017-9805
Categories: Security Alerts

Cisco ASR 5500 System Architecture Evolution Gateway GPRS Tunneling Protocol Denial of Service Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the General Packet Radio Service (GPRS) Tunneling Protocol ingress packet handler of Cisco ASR 5500 System Architecture Evolution (SAE) Gateways could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition on an affected device.

The vulnerability is due to improper input validation of GPRS Tunneling Protocol packet headers. An attacker could exploit this vulnerability by sending a malformed GPRS Tunneling Protocol packet to an affected device. A successful exploit could allow the attacker to cause the GTPUMGR process on an affected device to restart unexpectedly, resulting in a partial DoS condition. If the GTPUMGR process restarts, there could be a brief impact on traffic passing through the device.

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-20170906-asr A vulnerability in the General Packet Radio Service (GPRS) Tunneling Protocol ingress packet handler of Cisco ASR 5500 System Architecture Evolution (SAE) Gateways could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition on an affected device.

The vulnerability is due to improper input validation of GPRS Tunneling Protocol packet headers. An attacker could exploit this vulnerability by sending a malformed GPRS Tunneling Protocol packet to an affected device. A successful exploit could allow the attacker to cause the GTPUMGR process on an affected device to restart unexpectedly, resulting in a partial DoS condition. If the GTPUMGR process restarts, there could be a brief impact on traffic passing through the device.

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-20170906-asr
Security Impact Rating: Medium
CVE: CVE-2017-12217
Categories: Security Alerts

Cisco Unified Communications Manager Trust Verification Service Denial of Service Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the Trust Verification Service (TVS) of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability is due to improper handling of Transport Layer Security (TLS) traffic by the affected software. An attacker could exploit this vulnerability by generating incomplete traffic streams. A successful exploit could allow the attacker to deny access to the TVS for an affected device, resulting in a DoS condition, until an administrator restarts the service.

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-20170906-ucm A vulnerability in the Trust Verification Service (TVS) of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability is due to improper handling of Transport Layer Security (TLS) traffic by the affected software. An attacker could exploit this vulnerability by generating incomplete traffic streams. A successful exploit could allow the attacker to deny access to the TVS for an affected device, resulting in a DoS condition, until an administrator restarts the service.

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-20170906-ucm
Security Impact Rating: Medium
CVE: CVE-2017-6791
Categories: Security Alerts

Cisco Yes Set-Top Box Denial of Service vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the HTTP remote procedure call (RPC) service of set-top box (STB) receivers manufactured by Cisco for Yes could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability exists because the firmware of an affected device fails to handle certain XML values that are passed to the HTTP RPC service listening on the local subnet of the device. An attacker could exploit this vulnerability by submitting a malformed request to an affected device. A successful attack could cause the affected device to restart, resulting in a DoS condition.

Yes has updated the affected devices with firmware that addresses this vulnerability. Customers are not required to take action.

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-20170906-stb A vulnerability in the HTTP remote procedure call (RPC) service of set-top box (STB) receivers manufactured by Cisco for Yes could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability exists because the firmware of an affected device fails to handle certain XML values that are passed to the HTTP RPC service listening on the local subnet of the device. An attacker could exploit this vulnerability by submitting a malformed request to an affected device. A successful attack could cause the affected device to restart, resulting in a DoS condition.

Yes has updated the affected devices with firmware that addresses this vulnerability. Customers are not required to take action.

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-20170906-stb
Security Impact Rating: Medium
CVE: CVE-2017-6631
Categories: Security Alerts

Cisco SocialMiner XML External Entity Injection Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the web-based user interface of Cisco SocialMiner could allow an unauthenticated, remote attacker to have read and write access to information stored in the affected system.

The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by convincing the administrator of an affected system to import a crafted XML file with malicious entries, which could allow the attacker to read and write files and execute remote code within the application.

Additional information about XXE attacks and potential mitigations can be found at: https://www.owasp.org/index.php/XML_External_Entity_(XXE)_Processing

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-20170906-socmin A vulnerability in the web-based user interface of Cisco SocialMiner could allow an unauthenticated, remote attacker to have read and write access to information stored in the affected system.

The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by convincing the administrator of an affected system to import a crafted XML file with malicious entries, which could allow the attacker to read and write files and execute remote code within the application.

Additional information about XXE attacks and potential mitigations can be found at: https://www.owasp.org/index.php/XML_External_Entity_(XXE)_Processing

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-20170906-socmin
Security Impact Rating: Medium
CVE: CVE-2017-12216
Categories: Security Alerts

Cisco IOS and Cisco IOS XE Software IPv6 SNMP Message Handling Denial of Service Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the IPv6 Simple Network Management Protocol (SNMP) code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause high CPU usage or a reload of the device.

The vulnerability is due to IPv6 sub block corruption. An attacker could exploit this vulnerability by polling the affected device IPv6 information. An exploit could allow the attacker to trigger high CPU usage or a reload of the device.

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-20170906-snmp A vulnerability in the IPv6 Simple Network Management Protocol (SNMP) code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause high CPU usage or a reload of the device.

The vulnerability is due to IPv6 sub block corruption. An attacker could exploit this vulnerability by polling the affected device IPv6 information. An exploit could allow the attacker to trigger high CPU usage or a reload of the device.

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-20170906-snmp
Security Impact Rating: Medium
CVE: CVE-2017-12211
Categories: Security Alerts

Cisco Prime LAN Management Solution Session Fixation Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the web functionality of the Cisco Prime LAN Management Solution could allow an authenticated, remote attacker to hijack another user's administrative session.

The vulnerability is due to the reuse of a preauthentication session token as part of the postauthentication session. An attacker could exploit this vulnerability by obtaining the presession token ID. An exploit could allow an attacker to hijack an existing user's session.

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-20170906-prime-lms A vulnerability in the web functionality of the Cisco Prime LAN Management Solution could allow an authenticated, remote attacker to hijack another user's administrative session.

The vulnerability is due to the reuse of a preauthentication session token as part of the postauthentication session. An attacker could exploit this vulnerability by obtaining the presession token ID. An exploit could allow an attacker to hijack an existing user's session.

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-20170906-prime-lms
Security Impact Rating: Medium
CVE: CVE-2017-12225
Categories: Security Alerts

Cisco Prime Collaboration Provisioning Tool Inventory Management Feature Information Disclosure Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the Inventory Management feature of Cisco Prime Collaboration Provisioning Tool could allow an authenticated, remote attacker to view sensitive information on the system.

The vulnerability is due to insufficient protection of restricted information. An attacker could exploit this vulnerability by accessing unauthorized information via the user interface.

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-20170906-pcpt1 A vulnerability in the Inventory Management feature of Cisco Prime Collaboration Provisioning Tool could allow an authenticated, remote attacker to view sensitive information on the system.

The vulnerability is due to insufficient protection of restricted information. An attacker could exploit this vulnerability by accessing unauthorized information via the user interface.

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-20170906-pcpt1
Security Impact Rating: Medium
CVE: CVE-2017-6793
Categories: Security Alerts

Cisco Prime Collaboration Provisioning Tool System File Overwrite Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the batch provisioning feature in Cisco Prime Collaboration Provisioning Tool could allow an authenticated, remote attacker to overwrite system files as root.

The vulnerability is due to lack of input validation of the parameters in BatchFileName and Directory. An attacker could exploit this vulnerability by manipulating the parameters of the batch action file function.

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-20170906-pcpt A vulnerability in the batch provisioning feature in Cisco Prime Collaboration Provisioning Tool could allow an authenticated, remote attacker to overwrite system files as root.

The vulnerability is due to lack of input validation of the parameters in BatchFileName and Directory. An attacker could exploit this vulnerability by manipulating the parameters of the batch action file function.

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-20170906-pcpt
Security Impact Rating: Medium
CVE: CVE-2017-6792
Categories: Security Alerts

Cisco IR800 Integrated Services Router ROM Monitor Input Validation Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the ROM Monitor (ROMMON) code of Cisco IR800 Integrated Services Router Software could allow an unauthenticated, local attacker to boot an unsigned Hypervisor on an affected device and compromise the integrity of the system.

The vulnerability is due to insufficient sanitization of user input. An attacker who can access an affected router via the console could exploit this vulnerability by entering ROMMON mode and modifying ROMMON variables. A successful exploit could allow the attacker to execute arbitrary code and install a malicious version of Hypervisor firmware on an affected device.

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-20170906-isr A vulnerability in the ROM Monitor (ROMMON) code of Cisco IR800 Integrated Services Router Software could allow an unauthenticated, local attacker to boot an unsigned Hypervisor on an affected device and compromise the integrity of the system.

The vulnerability is due to insufficient sanitization of user input. An attacker who can access an affected router via the console could exploit this vulnerability by entering ROMMON mode and modifying ROMMON variables. A successful exploit could allow the attacker to execute arbitrary code and install a malicious version of Hypervisor firmware on an affected device.

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-20170906-isr
Security Impact Rating: Medium
CVE: CVE-2017-12223
Categories: Security Alerts

Cisco IOS and Cisco IOS XE Software UDP Packet Processing Denial of Service Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the UDP processing code of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interface queue wedge and a denial of service (DoS) condition.

The vulnerability is due to Cisco IOS Software application changes that create UDP sockets and leave the sockets idle without closing them. An attacker could exploit this vulnerability by sending UDP packets with a destination port of 0 to an affected device. A successful exploit could allow the attacker to cause UDP packets to be held in the input interfaces queue, resulting in a DoS condition. The input interface queue will stop holding UDP packets when it receives 250 packets.

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-20170906-ios-udp A vulnerability in the UDP processing code of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interface queue wedge and a denial of service (DoS) condition.

The vulnerability is due to Cisco IOS Software application changes that create UDP sockets and leave the sockets idle without closing them. An attacker could exploit this vulnerability by sending UDP packets with a destination port of 0 to an affected device. A successful exploit could allow the attacker to cause UDP packets to be held in the input interfaces queue, resulting in a DoS condition. The input interface queue will stop holding UDP packets when it receives 250 packets.

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-20170906-ios-udp
Security Impact Rating: Medium
CVE: CVE-2017-6627
Categories: Security Alerts

Cisco IoT Field Network Director Memory Exhaustion Denial of Service Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the TCP throttling process for Cisco IoT Field Network Director (IoT-FND) could allow an unauthenticated, remote attacker to cause the system to consume additional memory, eventually forcing the device to restart.

The vulnerability is due to insufficient rate-limiting protection. An attacker could exploit this vulnerability by sending a high rate of TCP packets to a specific group of open listening ports on a targeted device. An exploit could allow the attacker to cause the system to consume additional memory. If enough available memory is consumed, the system will restart, creating a temporary denial of service (DoS) condition. The DoS condition will end after the device has finished the restart process.

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-20170906-fnd A vulnerability in the TCP throttling process for Cisco IoT Field Network Director (IoT-FND) could allow an unauthenticated, remote attacker to cause the system to consume additional memory, eventually forcing the device to restart.

The vulnerability is due to insufficient rate-limiting protection. An attacker could exploit this vulnerability by sending a high rate of TCP packets to a specific group of open listening ports on a targeted device. An exploit could allow the attacker to cause the system to consume additional memory. If enough available memory is consumed, the system will restart, creating a temporary denial of service (DoS) condition. The DoS condition will end after the device has finished the restart process.

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-20170906-fnd
Security Impact Rating: High
CVE: CVE-2017-6780
Categories: Security Alerts

Cisco Firepower Management Center Cross-Site Scripting Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the web framework of Cisco Firepower Management Center could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web interface of the affected software.

The vulnerability is due to insufficient validation of user-supplied input by the affected software. Successful exploitation of this vulnerability could allow the attacker to execute arbitrary code in the context of the affected system.

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-20170906-firepower-2 A vulnerability in the web framework of Cisco Firepower Management Center could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web interface of the affected software.

The vulnerability is due to insufficient validation of user-supplied input by the affected software. Successful exploitation of this vulnerability could allow the attacker to execute arbitrary code in the context of the affected system.

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-20170906-firepower-2
Security Impact Rating: Medium
CVE: CVE-2017-12221
Categories: Security Alerts

Cisco Firepower Management Center Cross-Site Scripting Vulnerability

Wed, 2017-09-06 14:00
A vulnerability in the web-based management interface of Cisco Firepower Management Center could allow an unauthenticated, remote attacker to conduct a reflected 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.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-firepower-1 A vulnerability in the web-based management interface of Cisco Firepower Management Center could allow an unauthenticated, remote attacker to conduct a reflected 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.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-firepower-1
Security Impact Rating: Medium
CVE: CVE-2017-12220
Categories: Security Alerts

Pages