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CVE-2017-5493

Good to know:

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Date: January 14, 2017

wp-includes/ms-functions.php in the Multisite WordPress API in WordPress before 4.7.1 does not properly choose random numbers for keys, which makes it easier for remote attackers to bypass intended access restrictions via a crafted (1) site signup or (2) user signup.

Language: PHP

Severity Score

Related Resources (12)

http://www.securityfocus.com/bid/95401
https://nvd.nist.gov/vuln/detail/CVE-2017-5493
https://security-tracker.debian.org/tracker/CVE-2017-5493
https://github.com/WordPress/WordPress/commit/cea9e2dc62abf777e06b12ec4ad9d1aaa49b29f4
https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-5493
http://www.debian.org/security/2017/dsa-3779
http://www.openwall.com/lists/oss-security/2017/01/14/6
https://wpvulndb.com/vulnerabilities/8721
https://codex.wordpress.org/Version_4.7.1
http://www.securitytracker.com/id/1037591
https://www.mend.io/vulnerability-database/CVE-2017-5493

Severity Score

Weakness Type (CWE)

Cryptographic Issues

CWE-310

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

CWE-338

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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