oss-security - CVE request - pyftpd insecure usage of temporary directory

Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date: Sun, 13 Jun 2010 23:04:30 +0300
From: Henri Salo <henri@...v.fi>
To: oss-security@...ts.openwall.com, "Steven M. Christey"
 <coley@...us.mitre.org>
Subject: CVE request - pyftpd insecure usage of temporary directory

Pyftpd creates log-file to a temporary directory using predictable
name. This allows a local attacker to create a denial of service
condition and discloses sensitive information to unprivileged users.
For example accounts of other users connecting to server and paths they
visit.

One should use tempfile.mkstemp
<http://docs.python.org/library/tempfile.html#tempfile.mkstemp> or
use /var/log/ -directory instead of /tmp/ and use proper file system
modes for the log-file.

This affects version: 0.8.4

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=585773

Can I have CVE-identifier for this issue?

---
Henri Salo

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.