Vulnerability Details : CVE-2017-5493
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.
Products affected by CVE-2017-5493
- cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Threat overview for CVE-2017-5493
Top countries where our scanners detected CVE-2017-5493
Top open port discovered on systems with this issue
80
IPs affected by CVE-2017-5493 8,449
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2017-5493!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2017-5493
1.67%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-5493
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-5493
-
The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-5493
-
https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/
News – WordPress 4.7.1 Security and Maintenance Release – WordPress.orgVendor Advisory
-
http://www.securitytracker.com/id/1037591
WordPress Bugs Let Remote Users Conduct Cross-Site Scripting and Cross-Site Request Forgery Attacks and Obtain Potentially Sensitive Information - SecurityTracker
-
https://wpvulndb.com/vulnerabilities/8721
WordPress 3.0-4.7 - Cryptographically Weak Pseudo-Random Number Generator (PRNG)
-
http://www.securityfocus.com/bid/95401
WordPress Cryptographic Security Bypass Vulnerability
-
http://www.openwall.com/lists/oss-security/2017/01/14/6
oss-security - Re: CVE Request: Wordpress: 8 security issues in 4.7Mailing List;Third Party Advisory
-
http://www.debian.org/security/2017/dsa-3779
Debian -- Security Information -- DSA-3779-1 wordpress
-
https://codex.wordpress.org/Version_4.7.1
Version 4.7.1 | WordPress.orgRelease Notes;Vendor Advisory
-
https://github.com/WordPress/WordPress/commit/cea9e2dc62abf777e06b12ec4ad9d1aaa49b29f4
Multisite: Use `wp_rand()` in signup key creation. · WordPress/WordPress@cea9e2d · GitHubPatch
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