Bug 883330 (CVE-2012-5619) - CVE-2012-5619 sleuthkit: Improper interpretation of '.' entry on FAT filesystems (possibility to evade detection by forensic analysis)
Summary: CVE-2012-5619 sleuthkit: Improper interpretation of '.' entry on FAT filesyst...
Alias: CVE-2012-5619
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 883333
TreeView+ depends on / blocked
Reported: 2012-12-04 10:33 UTC by Jan Lieskovsky
Modified: 2019-09-29 12:58 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2013-01-26 16:17:20 UTC

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Description Jan Lieskovsky 2012-12-04 10:33:45 UTC
A security flaw was found in the way the Sleuth Kit (TSK), a collection of UNIX-based command line tools allowing to investigate a computer, performed management of '.' (dotfile) file system entry. An attacker could use this flaw to evade detection by forensic analysis (hide certain files not to be scanned) by renaming the file in question it to be '.' file system entry.

The original reports speaks about this attack vector to be present when scanning FAT (File Allocation Table) file system. It is possible though, the flaw to be present on other file systems, which do not reserve usage of '.' entry for special purpose, too.

[1] http://www.openwall.com/lists/oss-security/2012/12/01/2
[2] http://sourceforge.net/mailarchive/forum.php?thread_name=1305739444.2355.35.camel%40zwerfkat&forum_name=sleuthkit-users
[3] http://sourceforge.net/mailarchive/forum.php?thread_name=20120503111900.GL18142%40hauptmenue&forum_name=sleuthkit-users
[4] http://labs.bitdefender.com/2012/06/flame-the-story-of-leaked-data-carried-by-human-vector/
[5] http://blog.crysys.hu/2012/06/flame-usb-dot-file-confirmed/
[6] http://www.openwall.com/lists/oss-security/2012/12/04/2

Upstream bug report:
[7] http://sourceforge.net/tracker/?func=detail&aid=3523019&group_id=55685&atid=477889

Upstream patch:
OSS-security post [1] mentions no upstream patch to correct this issue to be available yet / so far.

Comment 1 Jan Lieskovsky 2012-12-04 10:37:20 UTC
This issue affects the versions of the sleuthkit package, as shipped with Fedora release of 16 and 17. Please schedule an update (once there is final upstream patch available).

Comment 2 Jan Lieskovsky 2012-12-04 10:37:59 UTC
Created sleuthkit tracking bugs for this issue

Affects: fedora-all [bug 883333]

Comment 3 Fedora Update System 2013-01-23 01:46:34 UTC
sleuthkit-4.0.1-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2013-01-23 01:49:30 UTC
sleuthkit-4.0.1-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

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