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CVE-2017-18264 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html	CVE	Third Party Advisory
https://www.phpmyadmin.net/security/PMASA-2017-8/	CVE	PatchVendor Advisory
http://www.securityfocus.com/bid/97211	CVE	Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html	[email protected]	Third Party Advisory
https://www.phpmyadmin.net/security/PMASA-2017-8/	[email protected]	PatchVendor Advisory
http://www.securityfocus.com/bid/97211	[email protected]	Third Party AdvisoryVDB Entry

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]

Affected Products

Product	Versions
phpmyadmin phpmyadmin	>= 4.0.0, < 4.0.10.20 >= 4.4.0, <= 4.4.15.10 >= 4.6.0, <= 4.6.6 4.7.0 beta1 4.7.0 rc1
CPE cpe:2.3:a:phpmyadmin:phpmyadmin:::::::: cpe:2.3:a:phpmyadmin:phpmyadmin:4.7.0:beta1:::::: cpe:2.3:a:phpmyadmin:phpmyadmin:4.7.0:rc1:::::: Remediation No remediation found in references.
debian debian linux	8.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* Remediation No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 3, 2019	CWE Remap	[email protected]
Aug 21, 2018	Modified Analysis	[email protected]
Jul 8, 2018	CVE Modified	[email protected]
Jul 1, 2018	CVE Modified	[email protected]
Jun 13, 2018	Initial Analysis	[email protected]