[NT] Panda ActiveScan Multiple Vulnerabilities

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Panda ActiveScan Multiple Vulnerabilities
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SUMMARY

Panda ActiveScan is a "Free online antivirus to combat viruses, spyware
and other Internet threats". 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.

DETAILS

Vulnerable Systems:
* Panda ActiveScan version 5.53.00

Immune Systems:
* Panda ActiveScan version 5.54.01

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.

Solution:
Update to version 5.54.01.

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.


ADDITIONAL INFORMATION

The information has been provided by Secunia Research.
The original article can be found at:
<http://secunia.com/secunia_research/2006-64/>
http://secunia.com/secunia_research/2006-64/



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