CVE-2018-3753 Prototype Pollution in async merge-object
Attackers can modify Object prototypes via the merge-objects npm module, 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
- None listed
What is CVE-2018-3753?
CVE-2018-3753 is a critical code injection vulnerability in n/a, published on 3 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The utilities function in all versions <= 1.0.0 of the merge-objects node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.
Weakness: CWE-20
Which versions are affected by CVE-2018-3753?
2 open source packages ship an affected version, including merge-object. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
merge-object npm | All versions to 1.0.0 | None |
merge-object npm | All versions to 1.0.0 | None |
Products include Merge-Object Project Merge-Object.
How do I fix CVE-2018-3753?
No fix has been published for CVE-2018-3753 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-2018-3753 being exploited?
There is no known exploitation of CVE-2018-3753 in the wild and no public exploit code.
Sources
Also known as GHSA-fp82-2h99-3fpp.