CVE-2021-4279

Public Exploit
Starcounter-Jack JSON-Patch prototype pollution

Description

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.

Category

6.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.10%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory vuldb.com Third-Party Advisory vuldb.com
Affected: Starcounter-Jack JSON-Patch
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.216778 third party advisory vdb entry
https://vuldb.com/?ctiid.216778 signature third party advisory permissions required
https://github.com/Starcounter-Jack/JSON-Patch/pull/262 patch third party advisory issue tracking exploit
https://github.com/Starcounter-Jack/JSON-Patch/commit/7ad6af41eabb2d799f698740a91284d762c955c9 third party advisory patch
https://github.com/Starcounter-Jack/JSON-Patch/releases/tag/3.1.1 patch third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2021-4279?
CVE-2021-4279 has been scored as a medium severity vulnerability.
How to fix CVE-2021-4279?
To fix CVE-2021-4279, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4279 being actively exploited in the wild?
It is possible that CVE-2021-4279 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4279?
CVE-2021-4279 affects Starcounter-Jack JSON-Patch.
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