CVE-2017-9841 on CISA KEV

Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 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 a

01What CISA says about this vulnerability

Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 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.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.securityfocus.com — http://www.securityfocus.com/bid/101798
• www.securitytracker.com — http://www.securitytracker.com/id/1039812
• security.gentoo.org — https://security.gentoo.org/glsa/201711-15
• www.oracle.com — https://www.oracle.com/security-alerts/cpuoct2021.html
• github.com — https://github.com/sebastianbergmann/phpunit/commit/284a69fb88a2d0845d23f42974a5…
• github.com — https://github.com/sebastianbergmann/phpunit/pull/1956
• web.archive.org — http://web.archive.org/web/20170701212357/http://phpunit.vulnbusters.com/

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

Open in Sigma generator →