A lack of environment sanitization in FreeBSD, OpenBSD, and NetBSD dynamic loaders may allow for privilege escalation.
d8ee508ca7429a07de680081ff8bbd39A Stateful Inspection of FireWall-1 - In this advisory we summarize our findings from BlackHat 2000 on Checkpoint Firewall-1. It is susceptible to several trivial attacks against its inter-module authentication protocols, IP address verification has flaws, FWN1 and FWA1 is vulnerable to a replay attack, Fastmode vulnerabilities, FWZ Encapsulation vulnerabilities, and Stateful Inspection problems, and much more. Included in the tarball is the presentation in two formats, the technical documentation for the vulnerabilities, and the source code used in the demonstation.
91477466f1f877e3f89271565b27a371FireWall-1 FTP Server Vulnerability Background Paper #1 - The basic idea of the described attack is to subvert the security policy implemented by a stateful firewall. This is done by triggering the generation of a TCP packet that, when inspected by the firewall, will change the firewall's internal state such that an attacker is able to establish a TCP connection to a filtered port through the firewall. This packet is the server response to a PASV user request during a FTP session.
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