|
Sony SunnComm MediaMax DRM Software Insecure Directory Permissions
|
|
Secunia Advisory:
|
SA17933
|
|
|
Release Date:
|
2005-12-07
|
|
Last Update:
|
2006-04-13
|
|
Popularity:
|
8,445 views
|
|
|
Critical:
|
Less critical
|
|
Impact:
|
Manipulation of data
Privilege escalation
|
|
Where:
|
Local system
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | SunnComm MediaMax 5.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
Description:
Jesse Burns and Alex Stamos has reported a security issue in SunnComm MediaMax, which can be exploited by malicious, local users to gain escalated privileges.
The security issue is caused due to insecure default directory ACLs being set on the "SunnComm Shared" directory, which allows "everyone" full access to the directory. This can be exploited by non-administrative users to modify the installed files, and potentially gain escalated privileges by e.g. replacing the MMX.exe program with a malicious program. The MMX.exe program will be automatically executed when another user inserts a MediaMax protected CD.
Changing the directory ACL manually is reportedly not effective as the insecure permissions will be restored the next time a MediaMax protected CD is played.
The security issue has been reported in version 5.0.21.0. Prior versions may also be affected.
Note: The MediaMax software reportedly will install itself even if the user declines the license agreement. The first patch is reportedly insecure as a malicious user can replace MediaMAX.dll with a malicious copy prior to the patch being applied. The replaced DLL will be loaded when user runs the patch.
Solution:
Apply the second patch (released on 2005-12-08).
http://www.sonybmg.com/indexmediamax.html
Refer to Sony's advisory for the list of CD titles that include the MediaMax software.
Provided and/or discovered by:
Jesse Burns and Alex Stamos, iSEC Partners.
Additional information by:
Alex Halderman
Changelog:
2005-12-19: Updated "Description" and "Solution" and credit sections.
2006-04-13: Added link to US-CERT vulnerability note.
Original Advisory:
Sony:
http://sonybmg.com/mediamax/
http://www.sonybmg.com/mediamax/titles.html
EFF:
http://www.eff.org/news/archives/2005_12.php#004234
iSEC Partners:
http://www.eff.org/IP/DRM/Sony-BMG/MediaMaxVulnerabilityReport.pdf
Alex Halderman:
http://www.freedom-to-tinker.com/?p=942
Other References:
US-CERT VU#928689:
http://www.kb.cert.org/vuls/id/928689
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
|
|
7th Oct, 2008
|
New advisories:
|
19 |
|
New vulnerabilities:
|
68 |
|
Updated advisories:
|
62 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 Solutions | More...
|
|
