( , ) (, . '.' ) ('. ', ). , ('. ( ) ( (_,) .'), ) _ _, / _____/ / _ \ ____ ____ _____ \____ \==/ /_\ \ _/ ___\/ _ \ / \ / \/ | \\ \__( <_> ) Y Y \ /______ /\___|__ / \___ >____/|__|_| / \/ \/.-. \/ \/:wq (x.0) '=.|w|.=' _=''"''=. presents.. Panda Security - Privilege Escalation Affected Software - Panda Global Protection 2016 (16.1.2) Panda Antivirus Pro 2016 (16.1.2) Panda Small Business Protection (16.1.2) Panda Internet Security 2016 (16.1.2) Testing Environment - Windows 10 PDF: http://www.security-assessment.com/files/documents/advisory/Panda%20Security%20-%20Privilege%20Escalation.pdf +-------------+ | Description | +-------------+ Multiple Panda Security products are vulnerable to local privilege escalation. As the USERS group has write permissions over the folder where the PSEvents.exe process is located, it is possible to execute malicious code as Local System. +--------------+ | Exploitation | +--------------+ ?PSEvents.exe? is scheduled to be executed every hour with SYSTEM Privileges. When executed, it tries to locate a number of DLLs in its local directory to be loaded. However, some of these DLLs don?t exist. ? The DACLs of the directory that contains the ?PSEvents.exe? executable allow a user in the USERS group to create files in that directory. A malicious user can exploit this vulnerability by creating a malicious DLL file in that directory and name it as one of the missing DLLs. After one hour, the ?PSEvents.exe? process will start and load our malicious DLL The same method can be used to exploit other executables (PSDevice.exe and PSProfiler.exe) located in Panda?s Downloads directory. +----------+ | Solution | +----------+ Install Panda?s Hotfix for this vulnerability. http://www.pandasecurity.com/uk/support/card?id=100053 +----------+ | Timeline | +----------+ 10/5/2016 - Exchange PGP 11/5/2016 - Advisory sent to Panda Security 14/5/2016 - Confirm receipt of the advisory 23/5/2016 - Email Panda Security for update 01/6/2016 - Panda Security reply that they have a fix in development. 16/6/2016 - Panda Security send hotfix to verify if it fixes the vulnerability. 21/6/2016 - Panda Security schedule to release the hotfix on 24/6/2016 24/6/2016 - Hotfix released 27/6/2016 - Advisory released +-------------------------------+ | About Security-Assessment.com | +-------------------------------+ Security-Assessment.com is a leading team of Information Security consultants specialising in providing high quality Information Security services to clients throughout the Asia Pacific region. Our clients include some of the largest globally recognised companies in areas such as finance, telecommunications, broadcasting, legal and government. Our aim is to provide the very best independent advice and a high level of technical expertise while creating long and lasting professional relationships with our clients. Security-Assessment.com is committed to security research and development, and its team continues to identify and responsibly publish vulnerabilities in public and private software vendor's products. Members of the Security-Assessment.com R&D team are globally recognised through their release of whitepapers and presentations related to new security research. For further information on this issue or any of our service offerings, contact us: Web www.security-assessment.com Email info () security-assessment.com Phone +64 4 470 1650