Cisco RV042/RV042G/RV320/RV325 up to 4.2.3.14 heap-based overflow

Summaryinfo

A vulnerability marked as critical has been reported in Cisco RV042, RV042G, RV320 and RV325. The affected element is an unknown function. Performing a manipulation results in heap-based overflow. This vulnerability is reported as CVE-2024-20517. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco RV042, RV042G, RV320 and RV325. It has been classified as critical. This affects an unknown code. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on 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.

It is possible to read the advisory at sec.cloudapps.cisco.com. This vulnerability is uniquely identified as CVE-2024-20517 since 11/08/2023. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. 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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