Fam File Alteration Monitor Information Disclosure Vulnerability

vendor:

Fam File Alteration Monitor

by:

SecurityFocus

2.1

CVSS

LOW

Information Disclosure

200

CWE

Product Name: Fam File Alteration Monitor

Affected Version From: N/A

Affected Version To: N/A

Patch Exists: YES

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Linux, Unix

2002

Fam File Alteration Monitor Information Disclosure Vulnerability

Fam is a freely available, open source file alteration monitor maintained and distributed by SGI. It is possible for a user to execute fam to discover a list of monitored files. This list, while it may have been created by a user of elevated privileges, could leak information to an attacker that may be sensitive. This vulnerability requires only that the directory being 'fammed' already have had the program executed against it by a privileged user.

Mitigation:

Restrict access to the fam program to privileged users only.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/5487/info

fam is a freely available, open source file alteration monitor. It is maintained and distributed by SGI, and will work on the Linux and Unix operating systems.

It is possible for a user to execute fam to discover a list of monitored files. This list, while it may have been created by a user of elevated privileges, could leak information to an attacker that may be sensitive. This vulnerability requires only that the directory being 'fammed' already have had the program executed against it by a privileged user.

# ls -ld /root
drwxr-x--- ... root root ... /root
# fam

% groups | grep root

ERRONEOUS BEHAVIOR
% ./test -d /root
FAMMonitorDirectory("/root")
FAMMonitorDirectory("/root")
DIR /root: /root Exists
DIR /root: .gnome Exists
DIR /root: Desktop Exists
...

CORRECT BEHAVIOR
% ./test -d /root
FAMMonitorDirectory("/root")
FAMMonitorDirectory("/root")
DIR /root: /root Exists
DIR /root: /root EndExist
---------------------------------------- 
(% indicates a command run as an unprivileged user)