Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT Security Bulletin
ASB-2016.0112
Multiple vulnerabilities have been identified in Guidance
Software and EnCase Forensic Imager & EnCase Forensic
29 November 2016
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Guidance Software EnCase Forensic Imager
Guidance Software EnCase Forensic
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Alternate Program
Member content until: Thursday, December 29 2016
Comment: As of the time of publication of this advisory, no updates were
provided by Guidance Software to fix the addressed vulnerabilities.
Users are advised to consider alternate applications for forensic
imaging and analytic activities until a fix is provided.
OVERVIEW
Multiple vulnerabilities have been identified in Guidance Software
EnCase Forensic Imager & EnCase Forensic up to and including version
7.10. [1]
IMPACT
The security researchers responsible for discovering the
vulnerabilities have provided the following details:
"1) Denial of Service. Several manipulated hard disk images cause
Encase Forensic Imager to crash. A suspect manipulating the hard
drive could potentially hinder an investigator from using Encase
Forensic Imager for creating hard disk images. Encase Forensic (v7)
has been tested and found to be affected as well.
2) Heap-based buffer overflow. Using a manipulated ReiserFS image an
attacker can overwrite heap memory on the investigator's machine.
Because of several restrictions SEC Consult was unable to create an
exploit that works reliably within a reasonable timeframe. However,
as with most heap-based buffer overflow vulnerabilities it is
possible that an attacker could gain arbitrary code execution
nevertheless." [1]
MITIGATION
The security researchers have provided the following recommendation:
"SEC Consult recommends not to use Encase Forensic Imager or the
Encase Forensic Suite until a thorough security review has been
performed by security professionals and all identified issues have
been resolved." [1]
The researchers also state:
"SEC Consult has created proof of concept disk images that will
crash Encase. Those PoC images will not be released." [1]
REFERENCES
[1] SEC Consult Vulnerability Lab Security Advisory 20161128-0
https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20161128-0_Guidance_Software_Encase_DoS_heap_buffer_overflow_vulnerabilities_v10.txt
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=o+mf
-----END PGP SIGNATURE-----