Cisco Security Advisory
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CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:X
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Multiple vulnerabilities in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code with elevated privileges equivalent to the web service process on an affected device.
These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device.
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-sb-rv34x-rce-8bfG2h6b
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Vulnerable Products
At the time of publication, these vulnerabilities affected the following Cisco RV Series Small Business Routers if they were running a firmware release earlier than Release 1.0.03.21:
- 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
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 these vulnerabilities.
Cisco has confirmed that these vulnerabilities do not affect the following Cisco RV Series Small Business Routers:
- RV160 VPN Router
- RV160W Wireless-AC VPN Router
- RV260 VPN Router
- RV260P VPN Router with POE
- RV260W Wireless-AC VPN Router
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There are no workarounds that address these vulnerabilities.
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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, Cisco Small Business RV Series Routers firmware releases 1.0.03.21 and later contained the fix for these vulnerabilities.
See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
To download the software from the Software Center on Cisco.com, do the following:
- Click Browse all.
- Choose Routers > Small Business Routers > Small Business RV Series Routers.
- Choose the appropriate router.
- Choose Small Business Router Firmware.
- Choose a release from the left pane of the product page.
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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.
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Cisco would like to thank T. Shiomitsu working with Trend Micro Zero Day Initiative for reporting these vulnerabilities.
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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.
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Show LessVersion Description Section Status Date 1.0 Initial public release. — Final 2021-APR-07
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