CVE-2018-12895: Path Traversal
First published: Tue Jun 26 2018(Updated: )
WordPress through 4.9.6 allows Author users to execute arbitrary code by leveraging directory traversal in the wp-admin/post.php thumb parameter, which is passed to the PHP unlink function and can delete the wp-config.php file. This is related to missing filename validation in the wp-includes/post.php wp_delete_attachment function. The attacker must have capabilities for files and posts that are normally available only to the Author, Editor, and Administrator roles. The attack methodology is to delete wp-config.php and then launch a new installation process to increase the attacker's privileges.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/wordpress | 5.0.15+dfsg1-0+deb10u1 5.0.19+dfsg1-0+deb10u1 5.7.8+dfsg1-0+deb11u2 6.1.1+dfsg1-1 6.3.1+dfsg1-1 | |
| WordPress WordPress | <4.9.7 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2018-12895
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12895
- https://blog.ripstech.com/2018/wordpress-file-delete-to-code-execution/
- https://dropbear.xyz/
- https://www.debian.org/
- https://github.com/WordPress/WordPress/commit/c9dce0606b0d7e6f494d4abe7b193ac046a322cd
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=902876
- http://packetstormsecurity.com/files/164633/WordPress-4.9.6-Arbitrary-File-Deletion.html
- http://www.securityfocus.com/bid/104569
- https://lists.debian.org/debian-lts-announce/2018/07/msg00046.html
- https://wpvulndb.com/vulnerabilities/9100
- https://www.debian.org/security/2018/dsa-4250
- collector/debian-bugs
- alias/CVE-2018-12895
- collector/security-tracker-debian
- agent/type
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/author
- agent/references
- agent/severity
- agent/weakness
- agent/tags
- agent/description
- agent/event
- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/wordpress
- canonical/wordpress wordpress
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0