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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.1306.3 Cisco IP Phone 6800, 7800, 7900, and 8800 Series Web UI Vulnerabilities 13 March 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco IP Phones Publisher: Cisco Systems Operating System: Cisco Resolution: Patch/Upgrade CVE Names: CVE-2023-20079 CVE-2023-20078 Original Bulletin: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ip-phone-cmd-inj-KMFynVcP Comment: CVSS (Max): 9.8 CVE-2023-20078 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: Cisco Systems Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Revision History: March 13 2023: Removed Cisco Unified IP Phone 7900 Series as an affected product March 8 2023: Vendor updated advisory March 2 2023: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco IP Phone 6800, 7800, and 8800 Series Web UI Vulnerabilities Priority: Critical Advisory ID: cisco-sa-ip-phone-cmd-inj-KMFynVcP First Published: 2023 March 1 16:00 GMT Last Updated: 2023 March 10 21:13 GMT Version 1.3: Final Workarounds: No workarounds available Cisco Bug IDs: CSCwc78400 CSCwd39132 CSCwd40474 CSCwd40489 CVE Names: CVE-2023-20078 CVE-2023-20079 Summary o Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ip-phone-cmd-inj-KMFynVcP Affected Products o Vulnerable Products CVE-2023-20078 This vulnerability affects the following Cisco products if they are running a vulnerable release of Cisco Multiplatform Firmware: IP Phone 6800 Series with Multiplatform Firmware IP Phone 7800 Series with Multiplatform Firmware IP Phone 8800 Series with Multiplatform Firmware CVE-2023-20079 This vulnerability affects the following Cisco products if they are running a vulnerable release of Cisco Multiplatform Firmware or Cisco Unified Software: IP Phone 6800 Series with Multiplatform Firmware IP Phone 7800 Series with Multiplatform Firmware IP Phone 8800 Series with Multiplatform Firmware Unified IP Conference Phone 8831 Unified IP Conference Phone 8831 with Multiplatform Firmware For information about which Cisco software releases are vulnerable, see the Fixed Software section of this advisory. Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by these vulnerabilities. Cisco has confirmed that these vulnerabilities do not affect the following Cisco products: ATA 191 Analog Telephone Adapter ATA 192 Multiplatform Analog Telephone Adapter IP Conference Phone 7832 IP Conference Phone 8832 IP DECT 110 Repeater with Multiplatform Firmware IP DECT 210 Multi-Cell Base Station IP DECT 6823 with Multiplatform Firmware IP Phone 7800 Series IP Phone 8845 and 8865 Unified IP Phone 3905 Video Phone 8875 Webex Room Phone Webex Share Webex Wireless Phones 840 and 860 Wireless IP Phone 8821 Details o The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit the other vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerability. Details about the vulnerabilities are as follows: CVE-2023-20078: Cisco IP Phone 6800, 7800, and 8800 Series Command Injection Vulnerability A vulnerability in the web-based management interface of Cisco IP Phone 6800, 7800, and 8800 Series Multiplatform Phones could allow an unauthenticated, remote attacker to inject arbitrary commands that are executed with root privileges. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of an affected device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Bug ID(s): CSCwc78400 CVE ID: CVE-2023-20078 Security Impact Rating (SIR): Critical CVSS Base Score: 9.8 CVSS Vector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2023-20079: Cisco IP Phone 6800, 7800, and 8800 Series Denial of Service Vulnerability A vulnerability in the web-based management interface of Cisco IP Phone 6800, 7800, and 8800 Series Multiplatform Phones, as well as Cisco Unified IP Conference Phone 8831, could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to cause a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Bug ID(s): CSCwd39132 CSCwd4074 CSCwd40489 CVE ID: CVE-2023-20079 Security Impact Rating (SIR): High CVSS Base Score: 7.5 CVSS Vector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Workarounds o There are no workarounds that address these vulnerabilities. Fixed Software o Cisco has released free software updates that address the vulnerabilities described in this advisory. Customers with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license: https://www.cisco.com/c/en/us/products/end-user-license-agreement.html Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades. The Cisco Support and Downloads page on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool. When considering software upgrades , customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page , to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. Customers Without Service Contracts Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c /en/us/support/web/tsd-cisco-worldwide-contacts.html Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Fixed Releases Customers are advised to upgrade to an appropriate fixed software release as indicated in the following table: IP Phone 6800, 7800, and 8800 Series Cisco Multiplatform First Fixed Release for First Fixed Release for Firmware Release CVE-2023-20078 CVE-2023-20079 Earlier than 11.3.7SR1 11.3.7SR1 Migrate to a fixed release. 12.0.1 Not affected. Not affected. Unified IP Conference Phone 8831 and Unified IP Conference Phone 8831 with Multiplatform Firmware Cisco has not released and will not release software updates to address the vulnerabilities that are described in CVE-2023-20079. Cisco Unified IP Conference Phone 8831 has entered the end-of-life process. Customers are advised to refer to the end-of-life notices for these products: End-of-Sale and End-of-Life Announcement for the Cisco Select IP Conference Phone 8831 for on-premise and accessories End-of-Sale and End-of-Life Announcement for the Cisco IP Conference Phone 8831 for Multiplatform Phones and Accessories When considering a device migration, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page , to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the new phone will be sufficient for their network needs and that current hardware and software configurations will continue to be supported properly by the new product. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory. Exploitation and Public Announcements o The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. Source o These vulnerabilities were found during internal security testing by Zack Sanchez of the Cisco Advanced Security Initiatives Group (ASIG). Cisco Security Vulnerability Policy o To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy . This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco. Subscribe to Cisco Security Notifications o Subscribe Related to This Advisory o URL o https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ip-phone-cmd-inj-KMFynVcP Revision History o +---------+-------------------------+--------------+--------+-------------+ | Version | Description | Section | Status | Date | +---------+-------------------------+--------------+--------+-------------+ | | | Title, | | | | | Removed Cisco Unified | Vulnerable | | | | 1.3 | IP Phone 7900 Series as | Products, | Final | 2023-MAR-10 | | | an affected product. | Details, | | | | | | Fixed | | | | | | Releases | | | +---------+-------------------------+--------------+--------+-------------+ | | Updated URLs for bug | | | | | 1.2 | IDs CSCwd40494 and | Details | Final | 2023-MAR-07 | | | CSCwd40489. | | | | +---------+-------------------------+--------------+--------+-------------+ | | Added end-of-life link | | | | | | for Cisco Unified IP | Fixed | | | | 1.1 | Phone 7900 Series and | Releases | Final | 2023-MAR-03 | | | updated the fixed | | | | | | release table intro. | | | | +---------+-------------------------+--------------+--------+-------------+ | 1.0 | Initial public release. | - | Final | 2023-MAR-01 | +---------+-------------------------+--------------+--------+-------------+ Legal Disclaimer o THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBZA6RHskNZI30y1K9AQhmHg//fymbUSUGCZXmBbVV/8rUmIp8X++gFjbf ctvOg2XUvrZNwxiPm6jZ0nLqvwGL2JZIHplj6lp8bsVF6l/fhbsUyHHgHc3eg0Si N+7dBPOLSW5IUXXyHhND2Qhkcd28oBzZYtjtOIfL4JMla2hoxhHCIFRb+hC3hG4E 8bnoku92AUeOnVrn2m92qXrjKdfpCW+fen1qHRYx/USYXSj7c1WTw4WhW2j40LU2 5DhR8zs9qk95wSgOvoTo0d4yVOcrkDDsvkoniGIuk/nyuqUfcWeUppg1f9Np5bOX D9jBVjyxNnJuiXMT4TviNyrHaW3vsRFjH9EYSUasqBuN9+vwFRD9O7I6TC2UyqeK BcDn6dp1YLumeZ0xoAjwrExxtQDRsdVVra+foni5/HKcV8wujpeTRFI0+V8uCutj QCJmfmraf5XcS8KwWyZ5xFZ0PYFd0LU7fdN1KLNr5HK+yzu1+7fVLVeQiLSDwNML TQ1tALFvZjfoynJ1ZcanXYyuCytfg65u7hCM4PZxcVJoSZ7EzMHuO9QWZMuj8OiO Laart8D0O1uLqiIABj0xPdSSzKJot5tfJ2fUxfMC438xkXH4aXs8rvN/4OKmH+aZ wSHC6FTxjV0pkyPaLFmyF7azgSAOsCocG/sV7QnhOp2H+UQPW8At11wX2H+npvzS BQvmCkDgfUQ= =+YeB -----END PGP SIGNATURE-----