CVE-2019-1161 Microsoft Defender Elevation of Privilege Vulnerability
An attacker with local access can delete protected files via MpSigStub.exe, leading to privilege escalation and data modification.
- 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-2019-1161?
CVE-2019-1161 is a high-severity vulnerability in Microsoft Forefront Endpoint Protection 2010, published on 14 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted command that could exploit the vulnerability and delete protected files on an affected system once MpSigStub.exe ran again. The update addresses the vulnerability and blocks the arbitrary deletion.
Which versions are affected by CVE-2019-1161?
It affects 4 products.
Products include Microsoft Forefront Endpoint Protection 2010, Microsoft Security Essentials, Microsoft System Center Endpoint Protection, Microsoft Windows Defender.
How do I fix CVE-2019-1161?
No fix has been published for CVE-2019-1161 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1161 being exploited?
There is no known exploitation of CVE-2019-1161 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Forefront Endpoint Protection 2010
- CVE-2020-1163 Privilege escalation in Microsoft Forefront Endpoint Protection
- CVE-2020-1170 Privilege escalation in Microsoft Forefront Endpoint Protection
- CVE-2019-1255 Denial of service in Microsoft Forefront Endpoint Protection
- CVE-2020-1461 Privilege escalation in Microsoft Forefront Endpoint Protection
- CVE-2020-1002 Privilege escalation in Microsoft Forefront Endpoint Protection
Sources
Also known as GHSA-32j3-hv3j-q9qq.