Vulnerability Name:

CVE-2019-17673 (CCN-169499)

Assigned:2019-10-15
Published:2019-10-15
Updated:2022-03-31
Summary:WordPress before 5.2.4 is vulnerable to poisoning of the cache of JSON GET requests because certain requests lack a Vary: Origin header.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-17673

Source: CCN
Type: WPScan Blog, Oct 15, 2019
WordPress 5.2.4 Security Release Breakdown

Source: MISC
Type: Third Party Advisory
https://blog.wpscan.org/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html

Source: MISC
Type: Patch, Vendor Advisory
https://core.trac.wordpress.org/changeset/46478

Source: XF
Type: UNKNOWN
wp-cve201917673-dos(169499)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38de

Source: BUGTRAQ
Type: Mailing List, Third Party Advisory
20200108 [SECURITY] [DSA 4599-1] wordpress security update

Source: CCN
Type: WordPress Web site
WordPress

Source: MISC
Type: Release Notes, Vendor Advisory
https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/

Source: MISC
Type: Third Party Advisory
https://wpvulndb.com/vulnerabilities/9911

Source: DEBIAN
Type: Third Party Advisory
DSA-4599

Source: DEBIAN
Type: Third Party Advisory
DSA-4677

Vulnerable Configuration:Configuration 1:
  • cpe:/a:wordpress:wordpress:*:*:*:*:*:*:*:* (Version < 5.2.4)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:wordpress:wordpress:5.2.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019176730000000
    V
    		CVE-2019-17673 on Ubuntu 19.04 (disco) - medium.
    2019-10-17
    oval:com.ubuntu.bionic:def:2019176730000000
    V
    		CVE-2019-17673 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-10-17
    oval:com.ubuntu.xenial:def:2019176730000000
    V
    		CVE-2019-17673 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-10-17
    BACK
    wordpress wordpress *
    debian debian linux 9.0
    debian debian linux 10.0
    wordpress wordpress 5.2.3