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Play TV v1.25.1(Build r123776) - DLL Hijack Vulnerability

2017-09-04 13:15
Document Title:
Play TV v1.25.1(Build r123776) - DLL Hijack Vulnerability

References (Source):

Release Date:

Vulnerability Laboratory ID (VL-ID):

Common Vulnerability Scoring System:

Vulnerability Class:
Privilege Escalation

Current Estimated Price:
500€ - 1.000€

Product & Service Introduction:
Plays.tv is the ultimate platform for gamers to record, replay and relive gaming highlights. It’s easy to create
quality video
content in no time, for your whole PC game library. play.tv consider as part of ATI Software package , and other third

( Copy of the Homepage: http://plays.tv/download )

Abstract Advisory Information:
The vulnerability laboratory core research team discovered a dll vulnerability in the official Play TV v1.25.1(Build
r123776) software.

Vulnerability Disclosure Timeline:
2017-07-11: Researcher Notification & Coordination (Security Researcher)
2017-07-12: Vendor Notification (Security Department)
2017-**-**: Vendor Response/Feedback (Security Department)
2017-**-**: Vendor Fix/Patch (Service Developer Team)
2017-**-**: Security Acknowledgements (Security Department)
2017-09-04: Public Disclosure (Vulnerability Laboratory)

Discovery Status:

Affected Product(s):

Exploitation Technique:

Severity Level:

Technical Details & Description:
A local dll injection vulnerability has been discovered in the official Play TV software 1.25.1(build r123776).
The issue allows local attackers to inject code to vulnerable dynamic link libraries to compromise the process
or to gain higher system access privileges. Thus allows a local attacker to compromise the system process of
the affected software to follow up with manipulations.

Vulnerable Software
[+] Play TV software 1.25.1(build r123776)

Vulnerable Libraries:
[+] api-ms-win-core-fibers-l1-1-1.dll
[+] api-ms-win-core-localization-l1-2-1.dll
[+] api-ms-win-core-file-l2-1-1.dll
[+] api-ms-win-security-systemfunctions-l1-1-0.dll
[+] api-ms-win-core-sysinfo-l1-2-1.dll

Proof of Concept (PoC):
The dll hijack vulnerability can be exploited by local attackers with restricted system user account and without user
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to

Manual steps to reproduce the vulnerability ...
1. Generate a malicious dynamic link library
2. Rename it to any name mentioned in vulnerable libraries like api-ms-win-security-systemfunctions-l1-1-0.dll
3. Copy DLL file into applications directory path
4. Successfully reproduce the dll hijacking issue!

Security Risk:
The security risk of the dll hijacking vulnerability in the software client is estimated as medium (CVSS 3.3).

Credits & Authors:
Lawrence Amer [zeroattck () gmail com] - https://www.vulnerability-lab.com/show.php?user=Lawrence+Amer

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Source: 2/peS/7102/erusolcsidlluf/gro.stsilces

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