Cisco Small Business RV110W Web-based Management Interface buffer overflow

Summaryinfo

A vulnerability was found in Cisco Small Business RV110W, Small Business RV130, Small Business RV130W and Small Business RV215W. It has been classified as critical. Impacted is an unknown function of the component Web-based Management Interface. Performing a manipulation results in buffer overflow. This vulnerability is known as CVE-2022-20912. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cisco Small Business RV110W, Small Business RV130, Small Business RV130W and Small Business RV215W (unknown version). This affects an unknown code block of the component Web-based Management Interface. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device or cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. These vulnerabilities are due to insufficient validation of user fields within incoming HTTP packets. An attacker could exploit these vulnerabilities by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on an affected device with root-level privileges or to cause the device to restart unexpectedly, resulting in a DoS condition. To exploit these vulnerabilities, an attacker would need to have valid Administrator credentials on the affected device. Cisco has not released software updates that address these vulnerabilities.

The weakness was published 07/22/2022 as cisco-sa-sb-rv-rce-overflow-ygHByAK. The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2022-20912 since 11/02/2021. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Cisco

Name

• Small Business RV110W
• Small Business RV130
• Small Business RV130W
• Small Business RV215W

License

• commercial

Website

• Vendor: https://www.cisco.com/

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