Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3182 Cisco SD-WAN Software multiple vulnerabilities 23 September 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco SD-WAN Software Publisher: Cisco Systems Operating System: Cisco Impact/Access: Root Compromise -- Existing Account Execute Arbitrary Code/Commands -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-34726 CVE-2021-1546 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-maapi-cmdinjec-znUYTuC https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-Fhqh8pKX Comment: This bulletin contains two (2) Cisco Systems security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco SD-WAN Software Command Injection Vulnerability Priority: Medium Advisory ID: cisco-sa-sdwan-maapi-cmdinjec-znUYTuC First Published: 2021 September 22 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvs98414 CVE Names: CVE-2021-34726 CWEs: CWE-77 CVSS Score: 6.7 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X Summary o A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root -level privileges on the underlying operating system of an affected device. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root -level privileges. 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-maapi-cmdinjec-znUYTuC Affected Products o Vulnerable Products At the time of publication, this vulnerability affected the following Cisco products if they were running a vulnerable release of Cisco SD-WAN Software: SD-WAN vBond Orchestrator Software SD-WAN vEdge Cloud Routers 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. Cisco has confirmed that this vulnerability does not affect the following Cisco products: IOS Software IOS XR Software Meraki products NX-OS Software 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 described in this advisory and which release included the fix for this vulnerability. Cisco SD-WAN Software Release First Fixed Release Earlier than 18.4 Migrate to a fixed release. 18.4 18.4.6 19.2 19.2.3 20.1 20.1.1.2 and 20.1.2 20.3 20.3.1 20.4 20.4.1 20.5 20.5.1 Exploitation and Public Announcements o The Cisco Product Security Incident Response Team (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. URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-maapi-cmdinjec-znUYTuC Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2021-SEP-22 | +----------+---------------------------+----------+--------+--------------+ - -------------------------------------------------------------------------------- Cisco SD-WAN Software Information Disclosure Vulnerability Priority: Medium Advisory ID: cisco-sa-sd-wan-Fhqh8pKX First Published: 2021 September 22 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvx79335 CVE Names: CVE-2021-1546 CWEs: CWE-209 Summary o A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to access sensitive information. This vulnerability is due to improper protections on file access through the CLI. An attacker could exploit this vulnerability by running a CLI command that targets an arbitrary file on the local system. A successful exploit could allow the attacker to return portions of an arbitrary file, possibly resulting in the disclosure of sensitive information. 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-sd-wan-Fhqh8pKX Affected Products o Vulnerable Products At the time of publication, this vulnerability affected the following Cisco products if they were running a vulnerable release of Cisco SD-WAN Software: SD-WAN vBond Orchestrator Software SD-WAN vEdge Cloud Routers SD-WAN vEdge Routers SD-WAN vManage Software SD-WAN vSmart Controller Software For information about which Cisco software releases were vulnerable, 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. Cisco has confirmed that this vulnerability does not affect Cisco IOS XE SD-WAN Software. 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 described in this advisory and which release included the fix for this vulnerability. Cisco SD-WAN Software Release First Fixed Release 18.4 Migrate to a fixed release. 19.2 Migrate to a fixed release. 20.3 Migrate to a fixed release. 20.4 20.4.2 20.5 20.5.2 20.6 20.6.1 Exploitation and Public Announcements o The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. Source o Cisco would like to thank Akhil Reddy and Yash Kumar of Societe Generale GSC for reporting this vulnerability. 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. URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-Fhqh8pKX Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2021-SEP-22 | +----------+---------------------------+----------+--------+--------------+ - --------------------------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. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYUvLPeNLKJtyKPYoAQjJwg/+OCMEhyaTLukr5GZIfLM3GOsjlEyOqd+r nxNC2WATbVroi6XNsuCG0+T23RdANeQ9ZXsjRyEr+AtUQ4WQsTdxW9LuYIVnMEqn PSmxt3VWubL/SLebYkY+SwBOPIrM5w1TKDnK1BlpA8oBmswQxRWVytnMTXg9QWw3 AjfZX6MK7IWxv+DKqfjUBNDpLmH5nfm56ZAybuirEDVwiha3JNNz77fV9gXjfufK qqK6X6qzsaHED1+1HhIjZGoZcaR81/BYajm21VbwuKgfaMq2ZFlpo/gFMf7erreZ Ep02oA6uol8ctz0eALs5FKpjIDyIB6k6d+DY+W22hzDfnxh6G1HpyCOyHPemqt9e uoh1G82AvbxfFrXI7wsN6cgAFxd0J2CMeAngv0/DJ/7/S9sPkxKWiOq7TzPpHb51 +OMCkijnDrhPYDnghTALRk81+WR/C6z/i0gWXvwygRRx8s3LiGmXUceZoJ06jNwk PxVrbTw3wv6fhTOtpF+89BMylCHkFqkV0CdGk/NT+01wGXjLp40uqGOp4++LVKhg p47A9Gey/aGQOtYxT+0Tjosh2JoSfI2sTimGO0KeXglQo40/xSt7p0J8EzSqmVhN PrOvTgmX9FPhZknLf6aDZTbOq4ghEDTo12I+gA4eDb6yDIw1ca/1PuxDBVLWZ5dH oh8B5iPHnZA= =BOcm -----END PGP SIGNATURE-----