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secunia-panda.txt

secunia-panda.txt
Posted Nov 18, 2006
Authored by Andreas Sandblad | Site secunia.com

Secunia Research has discovered two vulnerabilities and a weakness in Panda ActiveScan version 5.53.00, which can be exploited by malicious people to disclose system information, cause a DoS (Denial of Service), and compromise a user's system.

tags | advisory, denial of service, vulnerability
SHA-256 | 70227b6f2cc310218fac2ae9e81c5d58bbd5500f893213d04e068eff7fce0cdc

secunia-panda.txt

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====================================================================== 

Secunia Research 16/11/2006

- Panda ActiveScan Multiple Vulnerabilities -

======================================================================
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

======================================================================
1) Affected Software

* Panda ActiveScan 5.53.00.

NOTE: Other versions may also be affected.

======================================================================
2) Severity

Rating: Highly critical
Impact: System access
Denial of Service
Information disclosure
Where: Remote

======================================================================
3) Vendor's Description of Software

"Free online antivirus to combat viruses, spyware and other Internet
threats".

Product Link:
http://www.pandasoftware.com/products/ActiveScan.htm

======================================================================
4) Description of Vulnerability

Secunia Research has discovered two vulnerabilities and a weakness in
Panda ActiveScan, which can be exploited by malicious people to
disclose system information, cause a DoS (Denial of Service), and
compromise a user's system.

1) The "Reinicializar()" method in the "ActiveScan.1" ActiveX control
allows rebooting the system when invoked. This can be exploited by
e.g. a malicious website to reboot a user's system without any user
confirmation.

2) The "ObtenerTamano()" method in the "PAVPZ.SOS.1" ActiveX control
returns the file size of a given local filename. This can be exploited
by e.g. a malicious website to determine the presence of local files
and the corresponding file sizes.

3) The "Analizar()" method in the "ActiveScan.1" ActiveX control is
not thread safe. This can be exploited by e.g. a malicious website via
a race condition to corrupt memory and execute arbitrary code.

======================================================================
5) Solution

Update to version 5.54.01.

======================================================================
6) Time Table

21/09/2006 - Vendor notified.
21/09/2006 - Vendor response.
11/10/2006 - Additional details provided to vendor.
03/11/2006 - Vendor issues fixed version.
16/11/2006 - Public disclosure.

======================================================================
7) Credits

Discovered by Andreas Sandblad, Secunia Research.

======================================================================
8) References

The Common Vulnerabilities and Exposures (CVE) project has not
currently assigned CVE identifiers for the vulnerabilities.

======================================================================
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/

Secunia regularly hires new skilled team members. Check the URL below to
see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/

======================================================================
10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2006-64/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================



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