(PT-2009-01) Positive Technologies Security Advisory
PGP Desktop Pgpdisk.sys And Pgpwded.sys Multiple Vulnerabilities

Affected Software

PGP Desktop 9.9.0 build 397

Product Link:
http://www.pgp.com

Vulnerability Description

Positive Technologies Research Team has discovered several vulnerabilities in PGP Desktop.

1. The IOCTL handler in pgpdisk.sys does not properly validate buffer data associated with the Irp object, which allows local users to crash the system.

Severity Rating:

Severity: Medium
Impact: Denial of Service
Attack Vector: Local

CVSS v2
Base Score: 4.9
Temporal Score: 3.8
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C/E:P/RL:O/RC:C)

CVE: CVE-2009-0681

2. The IOCTL handler in pgpwded.sys does not properly validate buffer data associated with the Irp object, which allows local users to crash the system or execute arbitrary code with SYSTEM privileges.

Severity Rating:

Severity: Medium
Impact: Priviliege Escalation
Attack Vector: Local

CVSS v2:
Base Score: 6.2
Temporal Score: 4.9
Vector: (AV:L/AC:H/Au:N/C:C/I:C/A:C/E:P/RL:O/RC:C)

CVE: CVE-2009-0681

Solution

Update to the latest product version: PGP Desktop 9.10
http://www.pgp.com

https://pgp.custhelp.com/cgi-bin/pgp.cfg/php/enduser/std_adp.php?p_faqid=1014&p_topview=1

Disclosure Timeline

02.04.2009 - Vendor notified
02.04.2008 - Vendor replied
02.04.2008 - Sent detailed information
04.02.2009 - Vendor released fixed versions
04.13.2009 - Public disclosure

Credits

These vulnerabilities were discovered by Nikita Tarakanov, Positive Technologies Research Team.

References

http://en.securitylab.ru/lab/PT-2009-01
http://www.ptsecurity.ru/advisory.asp

Complete list of vulnerability reports published by Positive Technologies Research Team:

http://en.securitylab.ru/lab/
http://www.ptsecurity.ru/advisory.asp

About Positive Technologies

Positive Technologies www.ptsecurity.com is among the key players in the IT security market in Russia.
The principal activities of the company include the development of integrated tools for information security monitoring (MaxPatrol); providing IT security consulting services and technical support; the development of the Securitylab en.securitylab.ru leading Russian information security portal.

Among the clients of Positive Technologies there are more than 40 state enterprises, more than 50 banks and financial organizations, 20 telecommunication companies, more than 40 plant facilities, as well as IT, service and retail companies from Russia, CIS countries, Baltic States, China, Ecuador, Germany, Great Britain, Holland, Iran, Israel, Japan, Mexico, South African Republic, Thailand, Turkey and USA.

Positive Technologies is a team of highly skilled developers, advisers and experts with years of vast hands-on experience. The company specialists possess professional titles and certificates; they are the members of various international societies and are actively involved in the IT security field development.

Changelog

04.15.2009: Updated CVE number for secnd vulnerability