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CVE-2017-18264

UnknownEPSS 2.99%

Last modified

CVE-2017-18264 is a vulnerability of currently unknown severity. 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). EPSS estimates a 2.99% chance of exploitation in the next 30 days.

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

EPSS Probability
2.99%

85.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersionsUpdate
PhpmyadminPhpmyadmin>= 4.0.0, < 4.0.10.20—
PhpmyadminPhpmyadmin>= 4.4.0, <= 4.4.15.10—
PhpmyadminPhpmyadmin>= 4.6.0, <= 4.6.6—
PhpmyadminPhpmyadmin4.7.0Beta1
DebianDebian Linux8.0—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2017-18264?
Severity scoring for CVE-2017-18264 is pending analysis. The EPSS model estimates a 2.99% probability of exploitation in the next 30 days.
How do I fix CVE-2017-18264?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-18264?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST