Title: Telefonica O2 Connection Manager 3.4 Local Privilege Escalation Vulnerability
Advisory ID: ZSL-2014-5199
Type: Local
Impact: Privilege Escalation
Risk: (2/5)
Release Date: 09.10.2014

Summary

O2 Connection Manager will help you to manage your internet connections by getting you connected to the fastest available network. Automatically connect you to the fastest available network including your home broadband if you have a wireless router.

Description

O2 Connection Manager suffers from an elevation of privileges vulnerability which can be used by a simple user that can change the executable files 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 'O2 Connection Manager' and its files and sub-dirs world-writable.

Vendor

Telefonica S.A. - http://www.telefonica.com

Affected Version

3.4.R1 (108)

Tested On

Microsoft Windows 7 Professional SP1 (EN)
Microsoft Windows 7 Ultimate SP1 (EN)

Vendor Status

[22.09.2014] Vulnerability discovered.
[23.09.2014] Contact with the vendor.
[08.10.2014] No reply from the vendor.
[09.10.2014] Public security advisory released.

PoC

o2_priv.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] http://packetstormsecurity.com/files/128627
[2] http://cxsecurity.com/issue/WLB-2014100065
[3] http://osvdb.org/show/osvdb/113018
[4] http://www.securityfocus.com/bid/70371
[5] http://www.exploit-db.com/exploits/34966/
[6] http://xforce.iss.net/xforce/xfdb/96997

Changelog

[09.10.2014] - Initial release
[10.10.2014] - Added reference [1], [2] and [3]
[11.10.2014] - Added reference [4]
[14.10.2014] - Added reference [5]
[20.10.2014] - Added reference [6]

Contact

Zero Science Lab

Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk