LVS
lvs-users
Google
 
Web LinuxVirtualServer.org

vulnerability in iptables

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: vulnerability in iptables
From: "Douglas F. Elznic" <dfelznic@xxxxxxx>
Date: Thu, 19 Apr 2001 14:59:42 -0400 (EDT)
I was wondering if anyone has seen this vulnerability:
http://www.lwn.net/2001/0419/a/netfilter.php3

 Impact: If an attacker can establish an FTP connection passing through a
Linux 2.4.x IPTables firewall with the state options allowing "related"
connections (almost 100% do), he can insert entries into the firewall's
RELATED ruleset table allowing the FTP Server to connect to any host and
port protected by the firewalls rules, including the firewall itself.

There is a patch available:
http://netfilter.samba.org/security-fix/

Is this goin to affect the latest patch?




<Prev in Thread] Current Thread [Next in Thread>