Vulnerability identifier: #VU76820

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23807

CWE-ID: CWE-843

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
node-jsonpointer
Other software / Other software solutions

Vendor:

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error when the pointer components are arrays. A remote attacker can bypass of a previous Prototype Pollution fix when the pointer components are arrays.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Vulnerable software versions

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External links
http://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288
http://github.com/janl/node-jsonpointer/pull/51
http://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4
http://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.