CVE-2020-10139 Privilege escalation in True Image 2021

High 7.8 Published 21 Oct 2020 Updated 4 Aug 2024

Local attackers can achieve SYSTEM privileges by creating a malicious OpenSSL configuration file in a predictable path used by the Acronis True Image privileged service.

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-2020-10139?

CVE-2020-10139 is a high-severity vulnerability in Acronis True Image 2021, published on 21 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Acronis True Image 2021 includes an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory within C:\jenkins_agent\. Acronis True Image contains a privileged service that uses this OpenSSL component. Because unprivileged Windows users can create subdirectories off of the system root, a user can create the appropriate path to a specially-crafted openssl.cnf file to achieve arbitrary code execution with SYSTEM privileges.

Weakness: CWE-665, CWE-284

Which versions are affected by CVE-2020-10139?

It affects 1 product.

Products include Acronis True Image.

How do I fix CVE-2020-10139?

No fix has been published for CVE-2020-10139 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-10139 being exploited?

There is no known exploitation of CVE-2020-10139 in the wild and no public exploit code.

Sources

Also known as GHSA-93hp-mcpj-6329.