Cisco RV042/RV042G/RV320/RV325 up to 4.2.3.14 Web-based Management Interface stack-based overflow

Summaryinfo

A vulnerability was found in Cisco RV042, RV042G, RV320 and RV325. It has been rated as critical. Impacted is an unknown function of the component Web-based Management Interface. This manipulation causes stack-based overflow. This vulnerability is tracked as CVE-2024-20523. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco RV042, RV042G, RV320 and RV325. It has been declared as critical. Affected by this vulnerability is an unknown function of the component Web-based Management Interface. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect availability. The summary by CVE is:

A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to cause an unexpected reload of an affected device, resulting in a denial of service (DoS) condition. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.   This vulnerability is due to improper validation of user input that is in incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition.

The advisory is shared at sec.cloudapps.cisco.com. This vulnerability is known as CVE-2024-20523 since 11/08/2023. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/05/2024).

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• RV042
• RV042G
• RV320
• RV325

Version

• 1.0.1.17
• 1.0.2.03
• 1.1.0.09
• 1.1.1.06
• 1.1.1.19
• 1.2.1.13
• 1.2.1.14
• 1.3.1.10
• 1.3.1.12
• 1.3.2.02
• 1.3.12.6-tm
• 1.3.12.19-tm
• 1.3.13.02-tm
• 1.4.2.15
• 1.4.2.17
• 1.4.2.19
• 1.4.2.20
• 1.4.2.22
• 1.5.1.05
• 1.5.1.11
• 1.5.1.13
• 3.0.0.1-tm
• 3.0.0.19-tm
• 3.0.2.01-tm
• 4.0.0.7
• 4.0.2.08-tm
• 4.0.3.03-tm
• 4.0.4.02-tm
• 4.1.0.02-tm
• 4.1.1.01
• 4.2.1.02
• 4.2.2.08
• 4.2.3.03
• 4.2.3.06
• 4.2.3.07
• 4.2.3.08
• 4.2.3.09
• 4.2.3.10
• 4.2.3.14

License

• commercial

Website

• Vendor: https://www.cisco.com/

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