high
7.2
CWE
20 77
Advisory Published
Updated

CVE-2023-20118: Input Validation

First published: Wed Apr 05 2023(Updated: )

A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device. Cisco has not and will not release software updates that address this vulnerability.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Rv016 Firmware=1.5.1.13
Cisco Rv016 Firmware=4.2.3.08
Cisco Rv016
Cisco Rv042 Firmware=1.5.1.13
Cisco Rv042 Firmware=4.2.3.08
Cisco Rv042
Cisco Rv042g Firmware=1.5.1.13
Cisco Rv042g Firmware=4.2.3.08
Cisco Rv042g
Cisco Rv082 Firmware=1.5.1.13
Cisco Rv082 Firmware=4.2.3.08
Cisco Rv082
Cisco Rv320 Firmware=1.5.1.13
Cisco Rv320 Firmware=4.2.3.08
Cisco RV320
Cisco Rv325 Firmware=1.5.1.13
Cisco Rv325 Firmware=4.2.3.08
Cisco RV325
All of
Any of
Cisco Rv016 Firmware=1.5.1.13
Cisco Rv016 Firmware=4.2.3.08
Cisco Rv016
All of
Any of
Cisco Rv042 Firmware=1.5.1.13
Cisco Rv042 Firmware=4.2.3.08
Cisco Rv042
All of
Any of
Cisco Rv042g Firmware=1.5.1.13
Cisco Rv042g Firmware=4.2.3.08
Cisco Rv042g
All of
Any of
Cisco Rv082 Firmware=1.5.1.13
Cisco Rv082 Firmware=4.2.3.08
Cisco Rv082
All of
Any of
Cisco Rv320 Firmware=1.5.1.13
Cisco Rv320 Firmware=4.2.3.08
Cisco RV320
All of
Any of
Cisco Rv325 Firmware=1.5.1.13
Cisco Rv325 Firmware=4.2.3.08
Cisco RV325

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2023-20118.

  • What is the severity of CVE-2023-20118?

    The severity of CVE-2023-20118 is high.

  • What is the affected software of CVE-2023-20118?

    The affected software of CVE-2023-20118 includes Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers.

  • How can an attacker exploit CVE-2023-20118?

    An attacker can exploit CVE-2023-20118 by executing arbitrary commands on an affected device through the web-based management interface.

  • Is there a fix available for CVE-2023-20118?

    Yes, Cisco has released a security advisory with fixes for CVE-2023-20118. Please refer to the Cisco Security Advisory for more information.

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