Vulnerability Name:

CVE-2017-17091

Assigned:2017-12-02
Published:2017-11-29
Updated:2017-12-15
Summary:wp-admin/user-new.php in WordPress before 4.9.1 sets the newbloguser key to a string that can be directly derived from the user ID, which allows remote attackers to bypass intended access restrictions by entering this string.
CVSS v3 Severity:8.8 High (CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
8.4 High (Temporal CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
5.1 Medium (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:H/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): Low
Availibility (A): None
CVSS v2 Severity:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN 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
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-284
References:Source: BID
Type: VENDOR_ADVISORY
102024

Source: MISC
Type: PATCH
https://codex.wordpress.org/Version_4.9.1

Source: XF
Type: UNKNOWN
wp-core-cve201717091-sec-bypass(135848)

Source: MISC
Type: PATCH
https://github.com/WordPress/WordPress/commit/eaf1cfdc1fe0bdffabd8d879c591b864d833326c

Source: MISC
Type: UNKNOWN
https://wordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/

Source: MISC
Type: VENDOR_ADVISORY
https://wpvulndb.com/vulnerabilities/8969

Vulnerable Configuration:Configuration 1:
  • cpe:/a:wordpress:wordpress:4.9:*:*:*:*:*:*:*

  • Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:201717091000
    V
    CVE-2017-17091 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-12-02
    oval:com.ubuntu.trusty:def:201717091000
    V
    CVE-2017-17091 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-12-02
    BACK
    wordpress wordpress 4.9