CVE Catalog

CVE-2005-4257

High
Published: Translated: NVD NIST

Summary

Vulnerability in Linksys WRT54GS and BEFW11S4 routers allows a remote attacker to cause a device crash (denial of service) by sending an IP packet with the same source and destination IP addresses and ports, with the SYN flag set (LAND attack).

Risk Assessment

The attack can completely disable the router, resulting in network access interruption for all users.

Recommendation

It is recommended to update the router firmware to the latest version if a patch is available, or implement network traffic filtering rules to block LAND packets.

Related vulnerabilities

Original NVD description (English source)

Linksys WRT54GS and BEFW11S4 allows remote attackers to cause a denial of service (device crash) via an IP packet with the same source and destination IPs and ports, and with the SYN flag set (aka LAND). NOTE: the provenance of this issue is unknown; the details are obtained solely from the BID.

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