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CVE-2022-20708

Cisco Small Business RV Series Routers Vulnerabilities

Published
Last modified
published
Listed in CISA KEV
Actively exploited
None on Exploit-DB, Metasploit or GitHub

Summary

Cisco Small Business RV160, RV260, RV340, and RV345 Series routers are affected by multiple vulnerabilities. An attacker could exploit them to run arbitrary code or commands, gain higher privileges, bypass authentication, install unsigned software, or crash the device.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory.

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Cisco Cisco Small Business RV Series Router Firmware

    Version range not reported

References 2

tools.cisco.com

zerodayinitiative.com

FAQ

Questions about CVE-2022-20708

What does this mean?

The web-based management interface of these routers fails to properly check input, which can let a remote party run arbitrary commands on the router's underlying Linux operating system.Source: sec.cloudapps.cisco.com

Am I affected, and how do I check?

Only Cisco RV340, RV340W, RV345 and RV345P Dual WAN Gigabit VPN Routers are listed as affected, and only when their web-based management interface is exposed. To check, look up the model on the router's label or in its admin interface and see whether the web management interface is reachable from outside the network.Source: sec.cloudapps.cisco.com

What should I do about it?

The facts provided do not name a fixed firmware release, so no upgrade target is confirmed here. Check Cisco's advisory for the fixed version and apply it when available.Source: sec.cloudapps.cisco.com

Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-03-03, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data

What if there's no patch?

Until a fix is available, limit access to the router's web-based management interface so it is not reachable from untrusted networks. Cisco's advisory is the source to check for any further workaround.Source: sec.cloudapps.cisco.com