A significant security vulnerability, known as CVE-2023-34941, has been discovered in the unsupported Asus RT-N10LX Router v2...39. The vulnerability is a stored cross-site scripting (XSS) issue, which poses a risk to users of this outdated router. It is important to note that this exploitation only affects products that are no longer supported by the maintainer.

In this in-depth post, we will examine the exploit details, relevant code snippets, and original references associated with CVE-2023-34941. The objective is to raise awareness about the risks associated with using unsupported hardware and to encourage users to modernize their devices to ensure optimal security.

Exploit Details

The stored XSS vulnerability in the Asus RT-N10LX Router v2...39 is found in the 'urlFilterList' function. By exploiting this vulnerability, an attacker can inject a crafted payload into the "URL Keyword List" text field, which will enable them to execute arbitrary web scripts or HTML.

A simple, yet effective, payload example is demonstrated below


By injecting this payload into the vulnerable text field, an attacker can potentially gain control over the user's session, steal sensitive information, or imitate legitimate users. This type of intrusion is particularly dangerous since it leverages the trust that users place in the router as a source of genuine content.

Original References

To delve further into the discovery and analysis of this vulnerability, the following resources prove to be invaluable:

1. CVE Details - CVE-2023-34941: This link takes you to the official CVE Details page, which provides a comprehensive report on the vulnerability, including its severity, impact, and recommendations for mitigation.
2. MITRE CVE Dictionary Entry - CVE-2023-34941: For a more concise yet informative overview, the MITRE CVE Dictionary Entry offers a summary of the vulnerability, along with its key attributes and affected products.

Mitigation and Conclusion

CVE-2023-34941 is a potent reminder about the potential risks and security pitfalls associated with using unsupported or outdated technology. In most cases, moving to a modern and fully supported device would be the best course of action.

If migrating to a new router is not an immediate option, consider implementing content filtering and network segmentation as short-term countermeasures. Additionally, staying informed about newly discovered vulnerabilities and regularly updating your devices and software will help defend against potential threats.


Published on: 06/12/2023 20:15:00 UTC
Last modified on: 06/21/2023 14:30:00 UTC