CVE-2021-23420

Public Exploit
Deserialization of Untrusted Data

Description

This affects the package codeception/codeception from 4.0.0 and before 4.1.22, before 3.1.3. The RunProcess class can be leveraged as a gadget to run arbitrary commands on a system that is deserializing user input without validation.

Category

7.7
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.56%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a codeception/codeception
Published at:
Updated at:

References

Link Tags
https://github.com/JinYiTong/poc third party advisory exploit
https://snyk.io/vuln/SNYK-PHP-CODECEPTIONCODECEPTION-1324585 third party advisory
https://github.com/Codeception/Codeception/blob/4.1/ext/RunProcess.php%23L52 broken link
https://github.com/Codeception/Codeception/pull/6241 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-23420?
CVE-2021-23420 has been scored as a high severity vulnerability.
How to fix CVE-2021-23420?
To fix CVE-2021-23420, 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-2021-23420 being actively exploited in the wild?
It is possible that CVE-2021-23420 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23420?
CVE-2021-23420 affects n/a codeception/codeception.
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