Unrated severityNVD Advisory· Published Jul 30, 2001· Updated Jun 16, 2026
CVE-2001-1056
CVE-2001-1056
Description
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.
Affected products
2- Range: <=2.2
Patches
Vulnerability mechanics
References
5- www.securityfocus.com/bid/3117nvdThird Party AdvisoryVendor Advisory
- archives.neohapsis.com/archives/bugtraq/2001-07/0733.htmlnvdBroken Link
- archives.neohapsis.com/archives/bugtraq/2001-07/0750.htmlnvdBroken Link
- www.iss.net/security_center/static/6923.phpnvdBroken Link
- www.osvdb.org/1916nvdBroken Link
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