CVE Catalog

CVE-2001-1056

High
Published: Translated: NVD NIST

Summary

The ip_masq_irc module version 2.2 allows remote attackers to bypass intended firewall restrictions by sending a 'DCC SEND' request to a malicious server listening on port 6667.

Risk Assessment

Attackers may gain access to ports that should be blocked by the firewall, posing a risk of unauthorized access to the system.

Recommendation

It is recommended to update the ip_masq_irc module to the latest version and configure the firewall to block unauthorized traffic on port 6667.

Related vulnerabilities

Original NVD description (English source)

IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a "DCC SEND" request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.

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