6000 : FreeBSD gdc Symlink Arbitrary File Modification
Printer | http://osvdb.org/6000 | Email This | Edit Vulnerability

Views This Week Views All Time Added to OSVDB Last Modified Modified (since 2008) Percent Complete
3 982 about 10 years ago almost 2 years ago 2 times 90%


Disclosure Date


FreeBSD contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when a malicious user creates a symbolic link which is traversed by gdc when writing its debug ouput to a file, typically and inappropriately redirected to "/var/tmp/gated_dump" or "/var/tmp/gdb_dump". This flaw can be used to overwrite any file on the victim system as gdc runs setuid root and may consequently lead to a loss of integrity.


Location: Local Access Required
Attack Type: Input Manipulation, Race Condition
Impact: Loss of Integrity
Exploit: Exploit Public


Currently, there are no known upgrades, patches, or workarounds available to correct this issue.


The FreeBSD Project



  • Brock Tellier - btellierwebley.com -

CVSSv2 Score

CVSSv2 Base Score = 2.1
Source: nvd.nist.gov | Generated: 2003-12-31 | Disagree?

Access_vector_0 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_1 Availability_impact_0


No Comments.

The database information may change without any notice. Use of the information constitutes acceptance for use in an AS IS condition, and there are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the copyright holder or distributor (OSVDB or OSF) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

© Copyright 2002 - 2014 Open Sourced Vulnerability Database (OSVDB), All Rights Reserved.
Privacy Statement - Terms of Use