CVE-2018-3723 Prototype Pollution in defaults-deep
Attackers can modify the Object prototype via __proto__ in defaults-deep, 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-2018-3723?
CVE-2018-3723 is a high-severity vulnerability in HackerOne defaults-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
defaults-deep node module before 0.2.4 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.
Which versions are affected by CVE-2018-3723?
2 open source packages ship an affected version, including defaults-deep. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
defaults-deep npm | All versions | 0.2.4 |
defaults-deep npm | All versions | 0.2.4 |
Products include Defaults-Deep Project Defaults-Deep.
How do I fix CVE-2018-3723?
Upgrade defaults-deep to 0.2.4 or later.
Is CVE-2018-3723 being exploited?
There is no known exploitation of CVE-2018-3723 in the wild and no public exploit code.
Other vulnerabilities in HackerOne defaults-deep node module
Sources
Also known as GHSA-cqp5-m4pq-gfgp.