Prototype Pollution in Starcounter-Jack Json-Patch
CVE-2021-4279
A vulnerability has been found in Starcounter-Jack JSON-Patch up to 3.1.0 and classified as problematic. This vulnerability affects unknown code. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.1 is able to address this issue. The name of the patch is 7ad6af41eabb2d799f698740a91284d762c955c9. It is recommended to upgrade the affected component. VDB-216778 is the identifier assigned to this vulnerability.
Vulnerability class: Prototype Pollution
EPSS: 0.011 (61.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Starcounter-jack Json-patch — versions 3.0, 3.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, permissions-required, Third Party Advisory)
- cna@vuldb.com (issue-tracking, Exploit, Patch, Third Party Advisory, exploit, patch)
- cna@vuldb.com (Patch, Third Party Advisory, patch)
- cna@vuldb.com (Third Party Advisory, Release Notes, patch)
Frequently asked questions
- What is CVE-2021-4279?
- CVE-2021-4279 is a medium-severity vulnerability in Starcounter-Jack Json-Patch, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 6.3/10. Published 2022-12-25.
- How severe is CVE-2021-4279?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2021-4279 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.