CVE-2019-15315 Privilege escalation in n/a
Local attackers can escalate privileges to SYSTEM by replacing Steam service binaries with unpatched older versions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-15315?
CVE-2019-15315 is a high-severity vulnerability in n/a, published on 21 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch.
Weakness: CWE-732
Which versions are affected by CVE-2019-15315?
It affects 1 product.
Products include Valvesoftware Steam Client.
How do I fix CVE-2019-15315?
No fix has been published for CVE-2019-15315 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-15315 being exploited?
There is no known exploitation of CVE-2019-15315 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-mqr5-g657-83ch.