Vulnerability CVE-2017-5493
Published: 2017-01-14   Modified: 2017-01-15

Description:
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.

Type:

CWE-338

 (Use of Cryptographically Weak PRNG)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Wordpress -> Wordpress 

 References:
http://www.debian.org/security/2017/dsa-3779
http://www.openwall.com/lists/oss-security/2017/01/14/6
http://www.securityfocus.com/bid/95401
http://www.securitytracker.com/id/1037591
https://codex.wordpress.org/Version_4.7.1
https://github.com/WordPress/WordPress/commit/cea9e2dc62abf777e06b12ec4ad9d1aaa49b29f4
https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/
https://wpvulndb.com/vulnerabilities/8721
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