Vulnerability in phpMyAdmin
CVE-2017-18264
An issue was discovered in libraries/common.inc.php in phpMyAdmin 4.0 before 4.0.10.20, 4.4.x, 4.6.x, and 4.7.0 prereleases. The restrictions caused by $cfg['Servers'][$i]['AllowNoPassword'] = false are bypassed under certain PHP versions (e.g., version 5). This can allow the login of users who have no password set even if the administrator has set $cfg['Servers'][$i]['AllowNoPassword'] to false (which is also the default). This occurs because some implementations of the PHP substr function return false when given '' as the first argument.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.028 (86.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.028 · change: -0.001
Affected products
- phpMyAdmin — versions 4.7.0
- Debian Linux — versions 8.0
References
- www.phpmyadmin.net/security/PMASA-2017-8/ (Patch, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2018/07/msg00006.html (mailing-list, Third Party Advisory)
- www.securityfocus.com/bid/97211 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-18264?
- CVE-2017-18264 is a critical-severity vulnerability in phpMyAdmin. CVSS score: 9.8/10. Published 2018-05-01.
- How severe is CVE-2017-18264?
- Critical severity. CVSS v3 base score is 9.8 out of 10.