19514 : Bacula /scripts/mtx-changer.in Insecure Temporary File Creation
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	782	over 7 years ago	about 5 years ago	0 times	90%

Timeline

Disclosure Date
2005-09-20

Description

Bacula contains a flaw that may allow a malicious local user to create or overwrite arbitrary files on the system. The issue is due to scripts/mtx-changer.in creating temporary files in /tmp insecurely. It is possible for a user to use a symlink style attack to manipulate arbitrary files, resulting in a loss of integrity.

Classification

Location: Local Access Required
Attack Type: Race Condition
Impact: Loss of Integrity
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Upgrade to version 1.37.39 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Bacula	Bacula	1.36.3
		1.36.2
		1.36.1
		1.36.0
		1.34.6

References

Security Tracker: 1014941
Secunia Advisory ID: 16866 17083
Related OSVDB ID: 19512 19513
CVE ID: 2005-2995 (see also: NVD)
Mail List Post: http://archives.neohapsis.com/archives/fulldisclosure/2005-09/0526.html
Vendor Specific News/Changelog Entry: http://bugs.bacula.org/bug_view_advanced_page.php?bug_id=0000422
http://bugs.gentoo.org/show_bug.cgi?id=104986
Vendor URL: http://www.bacula.org/
Other Advisory URL: http://www.zataz.net/adviso/bacula-09192005.txt

Credit

Eric Romang - eromangzataz.net - ZATAZ Audit

CVSSv2 Score

CVSSv2 Base Score = 3.6
Source: nvd.nist.gov | Generated: 2005-09-21 | Disagree?

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