CVE-2018-16491 Prototype Pollution in node.extend
Prototype pollution in node.extend allows attackers to inject properties into Object.prototype, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-16491?
CVE-2018-16491 is a critical code injection vulnerability in HackerOne node.extend, published on 1 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A prototype pollution vulnerability was found in node.extend <1.1.7, ~<2.0.1 that allows an attacker to inject arbitrary properties onto Object.prototype.
Which versions are affected by CVE-2018-16491?
4 open source packages ship an affected version, including node.extend. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
node.extend npm | All versions | 1.1.7 |
node.extend npm | All versions | 1.1.7 |
node.extend npm | From 2.0.0 | 2.0.1 |
node.extend npm | From 2.0.0 | 2.0.1 |
Products include Dreamerslab Node.extend.
How do I fix CVE-2018-16491?
Upgrade node.extend to a fixed version for your release line: 1.1.7 or 2.0.1.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2018-16491 being exploited?
There is no known exploitation of CVE-2018-16491 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2018-16491, GHSA-r96c-57pf-9jjm, UBUNTU-CVE-2018-16491.