National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-20148 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  12/17/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/106220 Third Party Advisory VDB Entry
https://blog.secarma.co.uk/labs/near-phar-dangerous-unserialization-wherever-you-are Exploit Third Party Advisory
https://codex.wordpress.org/Version_4.9.9 Product Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00019.html Mailing List Third Party Advisory
https://wordpress.org/news/2018/12/wordpress-5-0-1-security-release/ Release Notes Vendor Advisory
https://wordpress.org/support/wordpress-version/version-5-0-1/ Release Notes Vendor Advisory
https://wpvulndb.com/vulnerabilities/9171 Vendor Advisory
https://www.debian.org/security/2019/dsa-4401 Third Party Advisory
https://www.zdnet.com/article/wordpress-plugs-bug-that-led-to-google-indexing-some-user-passwords/ Press/Media Coverage Third Party Advisory
https://www.zdnet.com/article/wordpress-vulnerability-affects-a-third-of-most-popular-websites-online/ Press/Media Coverage Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Deserialization of Untrusted Data (CWE-502)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
4.9.9
 cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
5.0
Up to (excluding)
5.0.1

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20148
NVD Published Date:
12/14/2018
NVD Last Modified:
03/04/2019