Ubisoft Uplay 4.6 Insecure File Permissions Local Privilege Escalation
Title: Ubisoft Uplay 4.6 Insecure File Permissions Local Privilege Escalation
Advisory ID: ZSL-2014-5191
Type: Local
Impact: Privilege Escalation
Risk: (2/5)
Release Date: 03.07.2014
4.5.2.3010 (PC)
Microsoft Windows 7 Ultimate SP1 (EN)
[30.05.2014] Vendor notified with details.
[01.06.2014] Vendor responds with confirmation.
[04.06.2014] Working with the vendor.
[03.07.2014] Vendor releases fixed version 4.6.1.3217 to address this issue.
[03.07.2014] Coordinated public security advisory released.
[2] http://cxsecurity.com/issue/WLB-2014070019
[3] http://osvdb.org/show/osvdb/108726
[4] http://www.exploit-db.com/exploits/33961/
[5] http://www.securityfocus.com/bid/68407
[6] http://1337day.com/exploit/22405
[7] http://packetstormsecurity.com/files/127355
[8] http://secunia.com/advisories/59472/
[9] http://cve.mitre.org/cgi-bin/cvename.cgi?name=2014-5453
[10] http://www.securiteam.com/securitynews/5EP340UEVA.html
[04.07.2014] - Added reference [3] and [4]
[05.07.2014] - Added reference [5] and [6]
[06.07.2014] - Added reference [7]
[18.07.2014] - Added reference [8]
[05.10.2014] - Added reference [9]
[20.02.2015] - Added reference [10]
Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk
Advisory ID: ZSL-2014-5191
Type: Local
Impact: Privilege Escalation
Risk: (2/5)
Release Date: 03.07.2014
Summary
Uplay is a digital distribution, digital rights management, multiplayer and communications service created by Ubisoft to provide an experience similar to the achievements/trophies offered by various other game companies.Description
Uplay for PC suffers from an elevation of privileges vulnerability which can be used by a simple user that can change the executable file with a binary of choice. The vulnerability exist due to the improper permissions, with the 'F' flag (Full) for 'Everyone' group, making the entire directory 'Ubisoft Game Launcher' and its files and sub-dirs world-writable.Vendor
Ubisoft Entertainment S.A. - http://www.ubi.comAffected Version
4.6.3208 (PC)4.5.2.3010 (PC)
Tested On
Microsoft Windows 7 Professional SP1 (EN)Microsoft Windows 7 Ultimate SP1 (EN)
Vendor Status
[30.05.2014] Vulnerability discovered.[30.05.2014] Vendor notified with details.
[01.06.2014] Vendor responds with confirmation.
[04.06.2014] Working with the vendor.
[03.07.2014] Vendor releases fixed version 4.6.1.3217 to address this issue.
[03.07.2014] Coordinated public security advisory released.
PoC
uplay_pe.txtCredits
Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>References
[1] http://forums.ubi.com/forumdisplay.php/513-Uplay[2] http://cxsecurity.com/issue/WLB-2014070019
[3] http://osvdb.org/show/osvdb/108726
[4] http://www.exploit-db.com/exploits/33961/
[5] http://www.securityfocus.com/bid/68407
[6] http://1337day.com/exploit/22405
[7] http://packetstormsecurity.com/files/127355
[8] http://secunia.com/advisories/59472/
[9] http://cve.mitre.org/cgi-bin/cvename.cgi?name=2014-5453
[10] http://www.securiteam.com/securitynews/5EP340UEVA.html
Changelog
[03.07.2014] - Initial release[04.07.2014] - Added reference [3] and [4]
[05.07.2014] - Added reference [5] and [6]
[06.07.2014] - Added reference [7]
[18.07.2014] - Added reference [8]
[05.10.2014] - Added reference [9]
[20.02.2015] - Added reference [10]
Contact
Zero Science LabWeb: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk
