CVE-2020-15568 Code injection in n/a

Critical 9.8 Published 30 Jan 2021 Updated 4 Aug 2024

Attackers can execute arbitrary OS commands as root via dynamic class method invocation in the export user script.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-15568?

CVE-2020-15568 is a critical code injection vulnerability in n/a, published on 30 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TerraMaster TOS before 4.1.29 has Invalid Parameter Checking that leads to code injection as root. This is a dynamic class method invocation vulnerability in include/exportUser.php, in which an attacker can trigger a call to the exec method with (for example) OS commands in the opt parameter.

Weakness: CWE-913

Which versions are affected by CVE-2020-15568?

It affects 1 product.

Products include Terra-Master Tos.

How do I fix CVE-2020-15568?

No fix has been published for CVE-2020-15568 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-15568 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-15568 exists.

Public exploit code: 1 Nuclei template and 2 proofs of concept on GitHub.

Sources

Also known as GHSA-j542-2x58-5jg4.