Arbitrary Code Injection Affecting wordpress package, versions <5.0.1+dfsg1-1
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-WORDPRESS-337802
- published 20 Feb 2019
- disclosed 20 Feb 2019
Introduced: 20 Feb 2019
CVE-2019-8942 Open this link in a new tabHow to fix?
Upgrade Debian:unstable wordpress to version 5.0.1+dfsg1-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wordpress package and not the wordpress package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
WordPress before 4.9.9 and 5.x before 5.0.1 allows remote code execution because an _wp_attached_file Post Meta entry can be changed to an arbitrary string, such as one ending with a .jpg?file.php substring. An attacker with author privileges can execute arbitrary code by uploading a crafted image containing PHP code in the Exif metadata. Exploitation can leverage CVE-2019-8943.
References
- https://security-tracker.debian.org/tracker/CVE-2019-8942
- https://www.debian.org/security/2019/dsa-4401
- https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html
- https://www.exploit-db.com/exploits/46511/
- https://www.exploit-db.com/exploits/46662/
- http://packetstormsecurity.com/files/152396/WordPress-5.0.0-crop-image-Shell-Upload.html
- https://blog.ripstech.com/2019/wordpress-image-remote-code-execution/
- https://wpvulndb.com/vulnerabilities/9222
- http://www.rapid7.com/db/modules/exploit/multi/http/wp_crop_rce
- http://www.securityfocus.com/bid/107088
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-8942