12 January 2023
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.0173 Cisco Small Business RV160 and RV260 Series VPN Routers Remote Command Execution Vulnerability 12 January 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Small Business RV160 and RV260 Series VPN Routers Publisher: Cisco Systems Operating System: Cisco Resolution: None CVE Names: CVE-2023-20045 Original Bulletin: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-cmd-exe-n47kJQLE Comment: CVSS (Max): 4.9 CVE-2023-20045 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N) CVSS Source: Cisco Systems Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Small Business RV160 and RV260 Series VPN Routers Remote Command Execution Vulnerability Priority: Medium Advisory ID: cisco-sa-rv-cmd-exe-n47kJQLE First Published: 2023 January 11 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCwd62514 CVE Names: CVE-2023-20045 Summary o A vulnerability in the web-based management interface of Cisco Small Business RV160 and RV260 Series VPN Routers could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands using root -level privileges on the affected device. To exploit this vulnerability, the attacker must have valid Administrator -level credentials on the affected device. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-cmd-exe-n47kJQLE Affected Products o Vulnerable Products At the time of publication, this vulnerability affected the following Cisco Small Business RV Series Routers if they were running a firmware release earlier than Release 1.0.01.04: RV160 VPN Routers RV160W Wireless-AC VPN Routers RV260 VPN Routers RV260P VPN Routers with PoE RV260W Wireless-AC VPN Routers See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. Note: The web-based management interface for these routers is available through local LAN connections by default and cannot be disabled there. The interface can also be made available through the WAN interface by enabling the remote management feature. By default, the remote management feature is disabled on affected devices. Determine the Device Configuration To determine whether the remote management feature is enabled for a device, open the web-based management interface through a local LAN connection and choose Basic Settings > Remote Management . If the Enable box is checked, remote management is enabled for the device. 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: RV340 Dual WAN Gigabit VPN Routers RV340W Dual WAN Gigabit Wireless-AC VPN Routers RV345 Dual WAN Gigabit VPN Routers RV345P Dual WAN Gigabit PoE VPN Routers Workarounds o There are no workarounds that address this vulnerability. Fixed Software o Cisco has not released and will not release software updates to address the vulnerabilities that are described in this advisory. Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers have 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 RV160 and RV260 VPN Router (all models) 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 new products will be sufficient for their network needs, that new devices contain sufficient memory, 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. 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 Rivaille 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. 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-rv-cmd-exe-n47kJQLE Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2023-JAN-11 | +----------+---------------------------+----------+--------+--------------+ 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 email@example.com 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. 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