Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2626 Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Vulnerabilities 5 August 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco RV340 Cisco RV340W Cisco RV345 Cisco RV345P Publisher: Cisco Systems Operating System: Cisco Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Root Compromise -- Existing Account Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-1610 CVE-2021-1609 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv340-cmdinj-rcedos-pY8J3qfy - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Vulnerabilities Priority: Critical Advisory ID: cisco-sa-rv340-cmdinj-rcedos-pY8J3qfy First Published: 2021 August 4 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvy15286 CSCvy15342 CVE Names: CVE-2021-1609 CVE-2021-1610 CWEs: CWE-121 CWE-149 Summary o Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an attacker to do the following: Execute arbitrary code Cause a denial of service (DoS) condition Execute arbitrary commands 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv340-cmdinj-rcedos-pY8J3qfy Affected Products o Vulnerable Products These vulnerabilities affect the following Cisco Small Business Routers if they are running a firmware release earlier than Release 1.0.03.22: RV340 Dual WAN Gigabit VPN Router RV340W Dual WAN Gigabit Wireless-AC VPN Router RV345 Dual WAN Gigabit VPN Router RV345P Dual WAN Gigabit POE VPN Router The web-based management interface for these devices 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. 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 check 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 these vulnerabilities. Cisco has confirmed that these vulnerabilities do not affect the following Cisco products: RV160 VPN Router RV160W Wireless-AC VPN Router RV260 VPN Router RV260P VPN Router with PoE RV260W Wireless-AC VPN Router Details o These 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-2021-1609: Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Remote Code Execution and Denial of Service Vulnerability A vulnerability in the web-based management interface of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device or cause the device to reload, resulting in a denial of service (DoS) condition. This vulnerability exists because HTTP requests are not properly validated. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device or cause the device to reload, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Bug ID(s): CSCvy15286 CVE ID:CVE-2021-1609 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-2021-1610: Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Command Injection Vulnerability A vulnerability in the web-based management interface of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary commands with root privileges on an affected device. This vulnerability exists because HTTP requests are not properly validated. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root on the underlying operating system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Bug ID(s): CSCvy15342 CVE ID:CVE-2021-1610 Security Impact Rating (SIR): High CVSS Base Score: 7.2 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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 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. 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 Cisco fixed these vulnerabilities in firmware releases 1.0.03.22 and later. To download the software from the Software Center on Cisco.com, click Browse All and navigate to Downloads Home > Routers > Small Business Routers > Small Business RV Series Routers . 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 vulnerabilities that are described in this advisory. Source o Cisco would like to thank swing of Chaitin Security Research Lab for reporting these vulnerabilities. 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-rv340-cmdinj-rcedos-pY8J3qfy Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2021-AUG-04 | +----------+---------------------------+----------+--------+--------------+ - --------------------------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 iQIVAwUBYQsxl+NLKJtyKPYoAQhdvg/9G2qFyUc3tspyqjEpdFCZBylNg8gD9cye Gq41m65XEfrNXhtoV1GXz8nvd8Ve2x3QoajfiUZD2rMRAg+KrsSlqTybM2aWWm1Z c7+EvFwtUxOj+/p9Cs/TrhCVGcCcb3qoQKhbtXAqmsnBGJz9a1YsrRbEmTwNWFIj PSMoMnMqHnJN/g1C/+2EOi3EaaFAI64gz158qI8r0/TTysj6RlX8UQfuzCkWGTFc dlgmRBS7SKVamnFwxxiDx+9m4oQIZBYiPwPrIK9E4bIAoVxfeUDhQSFw1/7uMoh0 YqJgQpavKXRLeASoGOZk50AAWrsIfjHRhNIATnD/wpWxDa2bERJimT6ch5osC8GH +dqH0yIrVYJL2ZRfr+VzVhWbn+Y5wxNu0JlFM+GYuQvPLBIfjpKpu9yWsXWFKOcD 6ewxWlNBLw7qse4uPiz+Eyz8n0dxAnHGKlTPv1xU6/ZxTWvKafMvKwEqn4PBVUY3 AAw1Ww6d6KorhLhNMD2pqEQ24IGzHF8nOekSRyDgMXI4SMNA9M8rwfaD4p6LeWgt dY8Rh1LUHkV0UDOh51YDIkyQ2FdM7/Re9ea8pMnNnfA07fjZ4cHTGfSYB/+oPW9w NPbEJJQ4Nk9DDzoOnN/wuQgAfVN4ItXQilAj/lhZNhbFMAaSEiYFFtR7VIDFSmrw 56xx2ykQIoE= =nnLG -----END PGP SIGNATURE-----