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 classified as critical. This vulnerability affects unknown code of the component Web-based Management Interface. The manipulation leads to stack-based overflow. This vulnerability is referenced as CVE-2024-20521. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco RV042, RV042G, RV320 and RV325 and classified as critical. This issue affects an unknown code block of the component Web-based Management Interface. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to 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). Impacted is confidentiality, integrity, and 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 execute arbitrary code as the root user. 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-supplied input in the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.

It is possible to read the advisory at sec.cloudapps.cisco.com. The identification of this vulnerability is CVE-2024-20521 since 11/08/2023. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not publicly available. The pricing 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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