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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.4821 Cisco SD-WAN Software Arbitrary File Corruption Vulnerability 29 September 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: SD-WAN vBond Orchestrator Software SD-WAN vEdge Routers SD-WAN vManage Software SD-WAN vSmart Controller Software Publisher: Cisco Systems Operating System: Cisco Resolution: Patch/Upgrade CVE Names: CVE-2022-20930 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-cli-xkGwmqKu Comment: CVSS (Max): 6.7 CVE-2022-20930 (CVSS:3.1/AV:L/AC:L/PR:H/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:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco SD-WAN Software Arbitrary File Corruption Vulnerability Priority: Medium Advisory ID: cisco-sa-sdwan-privesc-cli-xkGwmqKu First Published: 2022 September 28 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvz46392 CVE Names: CVE-2022-20930 CWEs: CWE-88 Summary o A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to overwrite and possibly corrupt files on an affected system. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by injecting arbitrary commands that are executed as the root user account. A successful exploit could allow the attacker to overwrite arbitrary system files, which could result in a denial of service (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-sdwan-privesc-cli-xkGwmqKu Affected Products o Vulnerable Products At the time of publication, this vulnerability affected the following Cisco products: SD-WAN vBond Orchestrator Software SD-WAN vEdge Routers SD-WAN vManage Software SD-WAN vSmart Controller Software For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability. Workarounds o There are no workarounds that address this vulnerability. Fixed Software o 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. Fixed Releases At the time of publication, the release information in the following table (s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. The left column lists Cisco software releases, and the right column indicates whether a release was affected by the vulnerability that is described in this advisory and which release included the fix for this vulnerability. Cisco SD-WAN Software Release First Fixed Release 18.3 and earlier Migrate to a fixed release. 19.2 Migrate to a fixed release. 20.3 Migrate to a fixed release. 20.4 Migrate to a fixed release. 20.6 20.6.2 20.8 20.8.1 20.9 20.9.1 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 This vulnerability was found during internal security testing by James Spadaro 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. Related to This Advisory o URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-cli-xkGwmqKu Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2022-SEP-28 | +----------+---------------------------+----------+--------+--------------+ - --------------------------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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If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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