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Code Injection in PHPUnit

Critical severity GitHub Reviewed Published Mar 26, 2022 to the GitHub Advisory Database • Updated Feb 7, 2024

Package

composer phpunit/phpunit (Composer)

Affected versions

>= 4.8.19, < 4.8.28
>= 5.0.10, < 5.6.3

Patched versions

4.8.28
5.6.3

Description

Util/PHP/eval-stdin.php in PHPUnit starting with 4.8.19 and before 4.8.28, as well as 5.x before 5.6.3, allows remote attackers to execute arbitrary PHP code via HTTP POST data beginning with a <?php substring, as demonstrated by an attack on a site with an exposed /vendor folder, i.e., external access to the /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php URI.

References

Published by the National Vulnerability Database Jun 27, 2017
Published to the GitHub Advisory Database Mar 26, 2022
Reviewed Mar 26, 2022
Last updated Feb 7, 2024

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

97.474%
(100th percentile)

Weaknesses

CVE ID

CVE-2017-9841

GHSA ID

GHSA-r7c9-c69m-rph8

Source code

Credits

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