Type Confusion in json-pointer



| Updated: 2023-03-31
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-23820
CWE-ID CWE-843
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 json-pointer
Web applications / Modules and components for CMS

Vendor Manuel Stofer

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Type Confusion

EUVDB-ID: #VU61046

Risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2021-23820

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a type confusion error. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

json-pointer: 0.0.2 - 0.6.0

CPE2.3 External links

https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577287
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910686
https://github.com/manuelstofer/json-pointer/blob/master/index.js%23L78


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. However, proof of concept for this vulnerability is available.



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