CVE-2019-1142 Path traversal in Microsoft .NET Framework 3.5

What is CVE-2019-1142?

CVE-2019-1142 is a medium-severity path traversal vulnerability in Microsoft .Net Framework, 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 .NET Framework common language runtime (CLR) allows file creation in arbitrary locations, aka '.NET Framework Elevation of Privilege Vulnerability'.

Weakness: CWE-22

Which versions are affected by CVE-2019-1142?

It affects 1 product.

Products include Microsoft .Net Framework.

How do I fix CVE-2019-1142?

No fix has been published for CVE-2019-1142 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2019-1142 being exploited?

There is no known exploitation of CVE-2019-1142 in the wild and no public exploit code.

Other vulnerabilities in Microsoft .Net Framework

• CVE-2020-0646 Microsoft .NET Framework Remote Code Execution Exploited Critical 9.8
• CVE-2017-8759 Microsoft .NET Framework Remote Code Execution Exploited High 7.8
• CVE-2015-1671 Microsoft Windows Remote Code Execution Exploited High 7.8
• CVE-2024-29059 Microsoft .NET Framework Information Disclosure Exploited High 7.5
• CVE-2014-4073 Privilege escalation in n/a Critical 10.0

All Microsoft .Net Framework vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-c789-g3w9-xg6f.