LuxMan maped binary file could be used to read memory
| luxman-maped-read-memory (10549) |  Medium Risk |
Description:
LuxMan could allow a local attacker to read or possibly write to memory. A local attacker could create a malicious gzip file and cause the LuxMan maped binary to execute this file by modifying the PATH environment variable to cause /dev/mem to be copied to /dev/tmp. This would allow the attacker to gain read and write access to /dev/mem. An attacker could possibly exploit this vulnerability to gain root privileges on the system.
Platforms Affected:
- Debian, Debian Linux 3.0
- Frank McIngvale's, LuxMan 0.41
Remedy:
For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest luxman package (0.41-17.1 or later), as listed in DSA 189-1. See References.
Consequences:
Gain Privileges
References:
- iDEFENSE Security Advisory 11.06.02, Non-Explicit Path Vulnerability in LuxMan at http://www.idefense.com/intelligence/vulnerabilities/display.php?id=40.
- BID-6113: Frank McIngvale LuxMan Memory File Descriptor Leakage Vulnerability
- CVE-2002-1245: Maped in LuxMan 0.41 uses the user-provided search path to find and execute the gzip program, which allows local users to modify /dev/mem and gain privileges via a modified PATH environment variable that points to a Trojan horse gzip program.
- DSA-189: luxman -- local root exploit
Reported:
Nov 06, 2002
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