CVE-2020-7673 Code Injection in node-extend

Critical 9.8 Published Updated

Arbitrary code execution via eval in node-extend allows attackers to run malicious code when user input is passed to the extend function.

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-2020-7673?

CVE-2020-7673 is a critical code injection vulnerability in node-extend, published on 10 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

node-extend through 0.2.0 is vulnerable to Arbitrary Code Execution. User input provided to the argument `A` of `extend` function`(A,B,as,isAargs)` located within `lib/extend.js` is executed by the `eval` function, resulting in code execution.

Weakness: CWE-94

Which versions are affected by CVE-2020-7673?

2 open source packages ship an affected version, including node-extend. It affects 1 product.

PackageAffectedFixed in
node-extend npmAll versions to 0.2.0None
node-extend npmAll versions to 0.2.0None

Products include Node-Extend Project Node-Extend.

How do I fix CVE-2020-7673?

No fix has been published for CVE-2020-7673 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-2020-7673 being exploited?

There is no known exploitation of CVE-2020-7673 in the wild and no public exploit code.

Sources

Also known as GHSA-cg42-4wrc-gp47.

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