PT-2012-5543 · Tunnelblick · Tunnelblick

Kurt Seifried · Published 2012-08-26 · Updated 2012-08-27 · CVE-2012-4676

Positive Technologies (AI Summary)

CVSS v2.0

1.2

Low

Base vector

AV:L/AC:H/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions Tunnelblick versions 3.3beta20 and earlier

Description The issue allows local users to delete arbitrary files by constructing a symlink or hard link. This is a result of a problem in the errorExitIfAttackViaString function.

Recommendations For versions 3.3beta20 and earlier, consider disabling the errorExitIfAttackViaString function as a temporary workaround until a patch is available. Restrict access to sensitive files to minimize the risk of exploitation.

Exploit

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2012-4676

Affected Products

Tunnelblick

References · 4

• 🔥 http://archives.neohapsis.com/archives/fulldisclosure/2012-08/0122.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2012-4676 · Security Note
• http://code.google.com/p/tunnelblick/issues/detail?id=212 · Note
• http://openwall.com/lists/oss-security/2012/08/14/1 · Note