CVE-2017-9841

Known Exploited

Description

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 94.41% Top 5%
KEV Since 
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/101798 vdb entry broken link
http://www.securitytracker.com/id/1039812 vdb entry broken link
https://security.gentoo.org/glsa/201711-15 third party advisory vendor advisory
https://www.oracle.com/security-alerts/cpuoct2021.html third party advisory patch
https://github.com/sebastianbergmann/phpunit/commit/284a69fb88a2d0845d23f42974a583d8f59bf5a5 third party advisory patch
https://github.com/sebastianbergmann/phpunit/pull/1956 third party advisory patch
http://web.archive.org/web/20170701212357/http://phpunit.vulnbusters.com/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-9841?
CVE-2017-9841 has been scored as a critical severity vulnerability.
How to fix CVE-2017-9841?
To fix CVE-2017-9841, 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-2017-9841 being actively exploited in the wild?
It is confirmed that CVE-2017-9841 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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