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Secunia Security Advisory 41208

Secunia Security Advisory 41208
Posted Aug 31, 2010
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been discovered in UltraVNC Viewer, which can be exploited by malicious people to compromise a user's system.

tags | advisory
SHA-256 | f28f66295b556ae8cf59d342a014230e4ea308592f26f0d865f1cd49070631f6

Secunia Security Advisory 41208

Change Mirror Download
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List of products vulnerable to insecure library loading vulnerabilities:
https://secunia.com/_%22insecure%20library%20loading%22

The list is continuously updated as we confirm the vulnerability reports
so check back regularly too see if any of your apps are affected.


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TITLE:
UltraVNC Viewer Insecure Library Loading Vulnerability

SECUNIA ADVISORY ID:
SA41208

VERIFY ADVISORY:
Secunia.com
https://secunia.com/advisories/41208/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=41208

RELEASE DATE:
2010-08-31

DISCUSS ADVISORY:
https://secunia.com/advisories/41208/#comments

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

https://secunia.com/advisories/41208/

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=41208

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

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

DESCRIPTION:
A vulnerability has been discovered in UltraVNC Viewer, which can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to the application loading libraries
(e.g. vnclang.dll) in an insecure manner. This can be exploited to
load arbitrary libraries by tricking a user into e.g. opening a VNC
file located on a remote WebDAV or SMB share.

Successful exploitation allows execution of arbitrary code, but
requires that the application during installation was configured to
be associated with VNC files (non-default option).

The vulnerability is confirmed in version 1.0.8.2. Other versions may
also be affected.

SOLUTION:
Do not open untrusted files.

PROVIDED AND/OR DISCOVERED BY:
Ivan Markovic

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

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

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

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

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

----------------------------------------------------------------------

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:
https://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
https://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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