critical
10
CWE
787 121
Advisory Published
Advisory Published
Updated

CVE-2022-20705: (Pwn2Own) Cisco RV340 NGINX sessionid Directory Traversal Authentication Bypass Vulnerability

First published: Thu Feb 10 2022(Updated: )

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.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Rv340 Firmware<=1.0.03.24
Cisco RV340
Cisco Rv340w Firmware<=1.0.03.24
Cisco Rv340w
Cisco Rv345 Firmware<=1.0.03.24
Cisco Rv345
Cisco Rv345p Firmware<=1.0.03.24
Cisco Rv345p
Cisco Rv160 Firmware<=1.0.01.05
Cisco Rv160
Cisco Rv160w Firmware<=1.0.01.05
Cisco Rv160w
Cisco Rv260 Firmware<=1.0.01.05
Cisco Rv260
Cisco Rv260p Firmware<=1.0.01.05
Cisco Rv260p
Cisco Rv260w Firmware<=1.0.01.05
Cisco Rv260w
Cisco RV340

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Reference Links

Frequently Asked Questions

  • What is CVE-2022-20705?

    CVE-2022-20705 is a vulnerability that allows network-adjacent attackers to create arbitrary files on affected installations of Cisco RV340 routers.

  • How severe is CVE-2022-20705?

    CVE-2022-20705 has a severity score of 9.8, which is considered critical.

  • How can CVE-2022-20705 be exploited?

    To exploit CVE-2022-20705, authentication is required, but the existing authentication mechanism can be bypassed.

  • Which Cisco products are affected by CVE-2022-20705?

    Cisco RV340 routers, Cisco Rv340 Firmware, Cisco Rv340w Firmware, Cisco Rv345 Firmware, Cisco Rv345p Firmware, Cisco Rv160 Firmware, Cisco Rv160w Firmware, Cisco Rv260 Firmware, Cisco Rv260p Firmware, and Cisco Rv260w Firmware are affected by CVE-2022-20705.

  • How can I fix CVE-2022-20705?

    To fix CVE-2022-20705, update the affected Cisco RV340 routers and firmware to a version that addresses the vulnerability.

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