Title: WMNet2 Kernel Memory File Descriptor Leakage Vulnerability
Severity: MODERATE
Description:
wmnet2 is a freely available, open source system monitoring application for the WindowMaker desktop. It is available for Unix and Linux operating systems. On FreeBSD it is installed setgid mem/kmem by default.
It has been reported that wmnet2 is vulnerable to a leakage of open file descriptors that may result in unauthorized disclosure of kernel memory. It is allegedly possible for attackers to inherit the open file descriptors for /dev/mem and /dev/kmem by executing a malicious program through wmnet2. The program that is executed can be specified by the attacker at the command line.
Upon exploiting this vulnerability, an attacker would have read-access to kernel memory. The attacker could use this access to gain sensitive information such as passwords, or other information. It should be assumed that total compromise is imminent if an attacker has read access to kernel memory.
Affected Products:
- FreeBSD FreeBSD 4.2.0
- FreeBSD FreeBSD 4.3.0
- FreeBSD FreeBSD 4.4.0
- FreeBSD FreeBSD 4.5.0
- FreeBSD FreeBSD 4.6.0
- wmnet2 wmnet2 1.0.0 6
References:
- Window Maker: Window Maker Homepage
- iDEFENSE: FreeBSD Ports libkvm Security Vulnerabilities
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