Auth bypass in Phpliteadmin
CVE-2018-10362
An issue was discovered in phpLiteAdmin 1.9.5 through 1.9.7.1. Due to loose comparison with '==' instead of '===' in classes/Authorization.php for the user-provided login password, it is possible to login with a simpler password if the password has the form of a power in scientific notation (like '2e2' for '200' or '0e1234' for '0'). This is possible because, in the loose comparison case, PHP interprets the string as a number in scientific notation, and thus converts it to a number. After that, the comparison with '==' casts the user input (e.g., the string '200' or '0') to a number, too. Hence the attacker can login with just a '0' or a simple number he has to brute force. Strong comparison with '===' prevents the cast into numbers.
Vulnerability class: Broken Authentication
EPSS: 0.015 (72.5th percentile) — read the EPSS interpretation.
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.
Affected products
- Phpliteadmin
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Technical Description, URL Repurposed, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2018-10362?
- CVE-2018-10362 is a critical-severity vulnerability in Phpliteadmin, classified under Improper Authentication. CVSS score: 9.8/10. Published 2018-04-25.
- How severe is CVE-2018-10362?
- Critical severity. CVSS v3 base score is 9.8 out of 10.