Deserialization of Untrusted Data Affecting wordpress package, versions <4.7.5+dfsg-2+deb9u5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-DEBIAN9-WORDPRESS-363008
- published14 Dec 2018
- disclosed14 Dec 2018
Introduced: 14 Dec 2018
CVE-2018-20148 (opens in a new tab)How to fix?
Upgrade Debian:9 wordpress to version 4.7.5+dfsg-2+deb9u5 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:9 relevant fixed versions and status.
In WordPress before 4.9.9 and 5.x before 5.0.1, contributors could conduct PHP object injection attacks via crafted metadata in a wp.getMediaItem XMLRPC call. This is caused by mishandling of serialized data at phar:// URLs in the wp_get_attachment_thumb_file function in wp-includes/post.php.
References
- https://security-tracker.debian.org/tracker/CVE-2018-20148
- https://www.debian.org/security/2019/dsa-4401
- https://lists.debian.org/debian-lts-announce/2019/02/msg00019.html
- https://blog.secarma.co.uk/labs/near-phar-dangerous-unserialization-wherever-you-are
- https://codex.wordpress.org/Version_4.9.9
- https://wordpress.org/news/2018/12/wordpress-5-0-1-security-release/
- https://wordpress.org/support/wordpress-version/version-5-0-1/
- https://wpvulndb.com/vulnerabilities/9171
- https://www.zdnet.com/article/wordpress-plugs-bug-that-led-to-google-indexing-some-user-passwords/
- https://www.zdnet.com/article/wordpress-vulnerability-affects-a-third-of-most-popular-websites-online/
- http://www.securityfocus.com/bid/106220
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-20148