CVE-2018-3720 Prototype Pollution in assign-deep
A prototype pollution vulnerability in the assign-deep library allows attackers to modify Object prototypes, affecting all objects in the application.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-3720?
CVE-2018-3720 is a high-severity vulnerability in HackerOne assign-deep node module, published on 7 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
assign-deep node module before 0.4.7 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.
Weakness: CWE-471
Which versions are affected by CVE-2018-3720?
2 open source packages ship an affected version, including assign-deep. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
assign-deep npm | All versions | 0.4.7 |
assign-deep npm | All versions | 0.4.7 |
Products include Assign-Deep Project Assign-Deep.
How do I fix CVE-2018-3720?
Upgrade assign-deep to 0.4.7 or later.
Is CVE-2018-3720 being exploited?
There is no known exploitation of CVE-2018-3720 in the wild and no public exploit code.
Other vulnerabilities in HackerOne assign-deep node module
Sources
Also known as GHSA-xcvv-84j5-jw9h.