CVE Catalog

CVE-2006-2559

High
Published: Translated: NVD NIST

Summary

The Linksys WRT54G Wireless-G Broadband Router has a vulnerability in UPnP handling that allows remote attackers to bypass access restrictions and perform unauthorized operations by sending a UPnP request with a modified InternalClient parameter, which is not validated. This is demonstrated by using AddPortMapping to forward arbitrary traffic.

Risk Assessment

The risk is that an attacker can remotely redirect network traffic, potentially compromising network integrity, intercepting data, or using the router as a relay for attacks.

Recommendation

It is recommended to update the router's firmware to the latest version if available, or disable UPnP if not needed, to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

Linksys WRT54G Wireless-G Broadband Router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS