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TITLE:
TeamViewer Insecure Directory Permissions Security Issue

SECUNIA ADVISORY ID:
SA43293

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43293/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43293

RELEASE DATE:
2011-03-10

DISCUSS ADVISORY:
http://secunia.com/advisories/43293/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43293/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43293

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Dennis P. Nikolaenko has discovered a security issue in TeamViewer,
which can be exploited by malicious, local users to gain escalated
privileges.

The security issue is caused due to the application setting insecure
file system permissions to the application's installation directory.
This can be exploited to overwrite any program or library in the
"Version6" directory.

Successful exploitation allows execution of arbitrary code with
escalated privileges when e.g. an administrative user launches the
desktop application, but requires the "Remote Access" functionality
to be enabled during installation (disabled by default).

The security issue is confirmed in version 6.0.10194 running on
Windows 7. Other versions may also be affected. The installation on a
Windows XP system is not affected.

SOLUTION:
Update to version 6.0.10344.

PROVIDED AND/OR DISCOVERED BY:
Dennis P. Nikolaenko via Secunia.

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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