CVE-2023-0163 Prototype Pollution in convict
Prototype pollution in Convict allows attackers to inject or override configuration attributes, potentially causing crashes or altering application behavior.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-0163?
CVE-2023-0163 is a high-severity vulnerability in Mozilla Convict, published on 26 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability in Mozilla Convict.
This allows an attacker to inject attributes that are used in other components, or to override existing attributes with ones that have incompatible type, which may lead to a crash.
The main use case of Convict is for handling server-side configurations written by the admins owning the servers, and not random users. So it's unlikely that an admin would deliberately sabotage their own server. Still, a situation can happen where an admin not knowledgeable about JavaScript could be tricked by an attacker into writing the malicious JavaScript code into some config files.
This issue affects Convict: before 6.2.4.
Weakness: CWE-1321
Which versions are affected by CVE-2023-0163?
2 open source packages ship an affected version, including convict. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
convict npm | All versions | 6.2.4 |
convict npm | All versions | 6.2.4 |
Products include Mozilla Convict.
How do I fix CVE-2023-0163?
Upgrade convict to 6.2.4 or later.
Is CVE-2023-0163 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0163 exists.
Other vulnerabilities in Mozilla Convict
Sources
Also known as GHSA-4jrm-c32x-w4jf.