15420 : rsnapshot copy_symlink() Arbitrary File Ownership Modification
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	429	over 6 years ago	over 3 years ago	0 times	90%

Timeline

Disclosure Date
2005-04-09

Description

Rsnapshot contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is due to an error in the "copy_symlink()" function where file permissions for symlinks are incorrectly set on the original file. This flaw may allow an attacker to take ownership of arbitrary files by placing a malicious symlink in a directory being backed up, resulting in a loss of integrity.

Classification

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

Solution

Upgrade to version 1.2.1 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Nathan Rosenquist	rsnapshot	1.2.0
		1.1.6

References

Security Tracker: 1013674
Secunia Advisory ID: 14878 14956
Related OSVDB ID: 15420
CVE ID: 2005-1064 (see also: NVD)
Mail List Post: http://archives.neohapsis.com/archives/apps/freshmeat/2005-04/0010.html
http://archives.neohapsis.com/archives/fulldisclosure/2005-04/0199.html
http://marc.theaimsgroup.com/?l=full-disclosure&m=111317179531000&w=2
Vendor Specific News/Changelog Entry: http://cvs.sourceforge.net/viewcvs.py/rsnapshot/rsnapshot/ChangeLog?view=markup
http://www.rsnapshot.org/security/2005/001.html
Other Advisory URL: http://security.gentoo.org/glsa/glsa-200504-12.xml
Vendor Specific Solution URL: http://www.gentoo.org/security/en/glsa/glsa-200504-12.xml
Vendor URL: http://www.rsnapshot.org/
Vendor Specific Advisory URL: http://www.rsnapshot.org/security/2005/001.html

Tools & Filters

	19023

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 4.6
Source: nvd.nist.gov | Generated: 2005-06-14 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

None found at this time

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