CVE-2020-15530

Public Exploit

Description

An issue was discovered in Valve Steam Client 2.10.91.91. The installer allows local users to gain NT AUTHORITY\SYSTEM privileges because some parts of %PROGRAMFILES(X86)%\Steam and/or %COMMONPROGRAMFILES(X86)%\Steam have weak permissions during a critical time window. An attacker can make this time window arbitrarily long by using opportunistic locks.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Third-Party Advisory blogspot.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://daniels-it-blog.blogspot.com/2020/07/steam-arbitrary-code-execution-part-2.html third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-15530?
CVE-2020-15530 has been scored as a high severity vulnerability.
How to fix CVE-2020-15530?
To fix CVE-2020-15530, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15530 being actively exploited in the wild?
It is possible that CVE-2020-15530 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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