CVE-2018-10362 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://k3research.outerhaven.de/posts/small-mistakes-lead-to-big-problems.html https://github.com/phpLiteAdmin/pla/issues/11

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8