CVE-2019-1253 Microsoft Windows AppX Deployment Server Privilege Escalation
An attacker with local execution can exploit improper junction handling in the Windows AppX Deployment Server to elevate privileges.
- Exploited in the wild
- Since 15 Mar 2022
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1253?
CVE-2019-1253 is a high-severity vulnerability in Microsoft Windows 10 1809, published on 11 Sep 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 Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1215, CVE-2019-1278, CVE-2019-1303.
Weakness: CWE-59
Which versions are affected by CVE-2019-1253?
It affects 8 products.
Products include Microsoft Windows 10 1703, Microsoft Windows 10 1709, Microsoft Windows 10 1803, Microsoft Windows 10 1809, Microsoft Windows 10 1903, Microsoft Windows Server 1803 and 2 more.
How do I fix CVE-2019-1253?
No fix has been published for CVE-2019-1253 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 5 Apr 2022.
Is CVE-2019-1253 being exploited?
Yes. Attackers have exploited CVE-2019-1253 in the wild since at least 15 Mar 2022, including in ransomware campaigns.
Public exploit code: 1 Exploit-DB entry and 4 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 10 1809
Sources
Also known as GHSA-wp5j-ppw9-22mw.