Debian Linux sendmail creates temporary files insecurely
| sendmail-tmpfile-insecure (12018) |  High Risk |
Description:
The sendmail package included with Debian Linux could allow a remote attacker to gain elevated privileges. Sendmail, a Mail Transport Agent (MTA) used on many operating systems, creates temporary files insecurely in the expn, checksendmail, and doublebounce.pl scripts. This vulnerability could allow a local attacker to gain privileges of the script user, possibly root.
Platforms Affected:
- Debian, Debian Linux 2.2
- Debian, Debian Linux 3.0
Remedy:
For Debian GNU/Linux:
Upgrade to the latest sendmail package, as listed below. Refer to DSA-305-1 for more information. See References.
Debian GNU/Linux 2.2 (potato): 8.9.3-26.1 or later
Debian GNU/Linux 3.0 (woody): 8.12.3-6.4 or later
Consequences:
Gain Privileges
References:
- BID-7614: Sendmail Insecure Temporary File Privilege Escalation Vulnerability
- CVE-2003-0308: The Sendmail 8.12.3 package in Debian GNU/Linux 3.0 does not securely create temporary files, which could allow local users to gain additional privileges via (1) expn, (2) checksendmail, or (3) doublebounce.pl.
- DSA-305: sendmail -- insecure temporary files
Reported:
May 15, 2003
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