Vulnerability CVE-2015-7985
Published: 2015-11-24

Description:
Valve Steam 2.10.91.91 uses weak permissions (Users: read and write) for the Install folder, which allows local users to gain privileges via a Trojan horse steam.exe file.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Steam 2.10.91.91 Weak File Permissions Privilege Escalation
Andrew Smith
24.11.2015

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Valve -> Steam 

 References:
http://packetstormsecurity.com/files/134513/Steam-2.10.91.91-Weak-File-Permissions-Privilege-Escalation.html
http://www.securityfocus.com/archive/1/536961/100/0/threaded
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