Advisories: Cisco

This page shows the security advisories feed for Cisco products:

  • Cisco Unified Customer Voice Portal Operations Console Privilege Escalation Vulnerability
    A vulnerability in the Operations, Administration, Maintenance, and Provisioning (OAMP) credential reset functionality for Cisco Unified Customer Voice Portal (CVP) could allow an authenticated, remote attacker to gain elevated privileges. The vulnerability is due to a lack of proper input validation. An attacker could exploit this vulnerability by authenticating to the OAMP and sending a crafted HTTP request. A successful exploit could allow the attacker to gain administrator privileges. The attacker must successfully authenticate to the system to exploit this vulnerability. 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-20170920-cvp Security Impact Rating: High CVE: CVE-2017-12214
  • Cisco Aironet 1830 Series and 1850 Series Access Points Mobility Express Default Credential Vulnerability
    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
  • Cisco Aironet 1800, 2800, and 3800 Series Access Points Plug-and-Play Arbitrary Code Execution Vulnerability
    A vulnerability in the Plug-and-Play (PnP) subsystem of the Cisco Aironet 1800, 2800, and 3800 Series Access Points running a Lightweight Access Point (AP) or Mobility Express image could allow an unauthenticated, adjacent attacker to execute arbitrary code with root privileges. The vulnerability is due to insufficient validation of PnP server responses. The PnP feature is only active while the device does not contain a configuration, such as a first time boot or after a factory reset has been issued. An attacker with the ability to respond to PnP configuration requests from the affected device can exploit the vulnerability by returning malicious PnP responses. If a Cisco Application Policy Infrastructure Controller - Enterprise Module (APIC-EM) is available on the network, the attacker would need to exploit the issue in the short window before a valid PnP response was received. If successful, the attacker could gain the ability to execute arbitrary code with root privileges on the underlying operating system 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-20170503-cme Security Impact Rating: High CVE: CVE-2017-3873
  • Cisco Mobility Express 1800 Access Point Series Authentication Bypass Vulnerability
    A vulnerability in the web-based GUI of Cisco Mobility Express 1800 Series Access Points could allow an unauthenticated, remote attacker to bypass authentication. The attacker could be granted full administrator privileges. The vulnerability is due to improper implementation of authentication for accessing certain web pages using the GUI interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web interface of the affected system. A successful exploit could allow the attacker to bypass authentication and perform unauthorized configuration changes or issue control commands to 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-20170315-ap1800 Security Impact Rating: Critical CVE: CVE-2017-3831
  • Apache Struts 2 Remote Code Execution Vulnerability Affecting Multiple Cisco Products: September 2017
    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. The following Snort rules can be used to detect possible exploitation of this vulnerability: Snort SIDs 44327 through 44330. 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
  • Multiple Vulnerabilities in Apache Struts 2 Affecting Cisco Products: September 2017
    On September 5, 2017, the Apache Software Foundation released security bulletins that disclosed 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. The following Snort rule can be used to detect possible exploitation of this vulnerability: Snort SID 44315. 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
  • Cisco IOS and IOS XE Software Cluster Management Protocol Remote Code Execution Vulnerability
    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
  • Cisco Unified Intelligence Center Cross-Site Scripting Vulnerability
    A vulnerability in the web framework code of Cisco Unified Intelligence Center Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web interface of an affected system. The vulnerability is due to insufficient input validation of some parameters that are passed to the web server of the affected software. An attacker could exploit this vulnerability by persuading a user to click a malicious link or by intercepting a user request and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected site 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-20170920-cuic Security Impact Rating: Medium CVE: CVE-2017-12248
  • Cisco Wide Area Application Services HTTP Application Optimization Denial of Service Vulnerability
    A vulnerability in the HTTP web interface for Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause an HTTP Application Optimization (AO) related process to restart, causing a partial denial of service (DoS) condition. The vulnerability is due to lack of input validation of user-supplied input parameters within an HTTP request. An attacker could exploit this vulnerability by sending a crafted HTTP request through the targeted device. An exploit could allow the attacker to cause a DoS condition due to a process unexpectedly restarting. The WAAS could drop traffic during the brief time the process is restarting. 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-waas Security Impact Rating: Medium CVE: CVE-2017-12250
  • Cisco UCS Central Software Command Line Interface Restricted Shell Break Vulnerability
    A vulnerability in the CLI of Cisco UCS Central Software could allow an authenticated, local attacker to gain shell access. The vulnerability is due to insufficient input validation of commands entered in the CLI. An attacker could exploit this vulnerability by entering a specific command with crafted arguments. An exploit could allow the attacker to gain shell access to the underlying 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-20170920-ucs Security Impact Rating: Medium CVE: CVE-2017-12255
  • Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones Denial of Service Vulnerability
    A vulnerability in the handling of IP fragments for the Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to the inability to handle many large IP fragments for reassembly in a short duration. An attacker could exploit this vulnerability by sending a crafted stream of IP fragments to the targeted device. An exploit could allow the attacker to cause a DoS condition when the device unexpectedly reloads. 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-spa Security Impact Rating: Medium CVE: CVE-2017-12219
  • Cisco Small Business Managed Switches Denial of Service Vulnerability
    A vulnerability in the Secure Shell (SSH) subsystem of Cisco Small Business Managed Switches software could allow an authenticated, remote attacker to cause a reload of the affected switch, resulting in a denial of service (DoS) condition. The vulnerability is due to improper processing of SSH connections. An attacker could exploit this vulnerability by logging in to an affected switch via SSH and sending a malicious SSH message. 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-20170920-sbms Security Impact Rating: High CVE: CVE-2017-6720
  • Cisco FindIT DLL Preloading Vulnerability
    A vulnerability in the Cisco FindIT Network Discovery Utility could allow an authenticated, local attacker to perform a DLL preloading attack, potentially causing a partial impact to device availability, confidentiality, and integrity. The vulnerability is due to the application loading a malicious copy of a specific, nondefined DLL file instead of the DLL file it was expecting. An attacker could exploit this vulnerability by placing an affected DLL within the search path of the host system. An exploit could allow the attacker to load a malicious DLL file into the system, thus partially compromising confidentiality, integrity, and availability on 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-20170920-findit Security Impact Rating: Medium CVE: CVE-2017-12252
  • Cisco Email Security Appliance Denial of Service Vulnerability
    A vulnerability in the email message filtering feature of Cisco AsyncOS Software for the Cisco Email Security Appliance could allow an unauthenticated, remote attacker to cause an affected device to run out of memory and stop scanning and forwarding email messages. When system memory is depleted, it can cause the filtering process to crash, resulting in a denial of service (DoS) condition on the device. The vulnerability is due to improper input validation of email attachments that contain corrupted fields. An attacker could exploit this vulnerability by sending an email message with an attachment that contains corrupted fields through a targeted device. When the affected software filters the attachment, the filtering process could crash when the system runs out of memory and the process restarts, resulting in a DoS condition. After the filtering process restarts, the software resumes filtering for the same attachment, causing the filtering process to crash and restart again. A successful exploit could allow the attacker to cause a repeated 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-20170920-esa Security Impact Rating: High CVE: CVE-2017-12215
  • Cisco Unified Intelligence Center Cross-Site Scripting Vulnerability
    A vulnerability in the web interface of Cisco Unified Intelligence Center could allow an unauthenticated, remote attacker to perform a Document Object Model (DOM)-based cross-site scripting attack. The vulnerability is due to insufficient input validation of some parameters passed to the web server. An attacker could exploit this vulnerability by convincing the user to access a malicious link or by intercepting the user request and injecting the malicious code. An exploit could allow the attacker to execute arbitrary code in the context of the affected site 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-20170920-cuic2 Security Impact Rating: Medium CVE: CVE-2017-12254
  • Cisco Unified Intelligence Center User Interface Cross-Site Request Forgery Vulnerability
    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
  • Cisco Email Security Appliance Malformed EML Attachment Bypass Vulnerability
    A vulnerability in the malware detection functionality within Advanced Malware Protection (AMP) of Cisco AsyncOS Software for Cisco Email Security Appliances (ESAs) could allow an unauthenticated, remote attacker to cause an email attachment containing malware to be delivered to the end user. The vulnerability is due to the failure of AMP to scan certain EML attachments that could contain malware. An attacker could exploit this vulnerability by sending an email with a crafted EML attachment through the targeted device. A successful exploit could allow the attacker to bypass the configured ESA email message and content filtering and allow the malware to be delivered to the end user. 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-esa Security Impact Rating: Medium CVE: CVE-2017-12218
  • Multiple Vulnerabilities in OpenSSL Affecting Cisco Products: September 2016
    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
  • Cisco Meeting Server TURN Server Unauthorized Access and Information Disclosure Vulnerability
    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
  • Cisco IOS and Cisco IOS XE Software UDP Packet Processing Denial of Service Vulnerability
    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
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