phpfm 1.7.9 contains an authentication bypass vulnerability that allows attackers to log in by exploiting loose type comparison in password hash validation. Attackers can craft specific password hashes beginning with 0e or 00e to bypass authentication and upload malicious PHP files to the server.
Weakness
The product uses an authentication mechanism to restrict access to specific users or identities, but the mechanism does not sufficiently prove that the claimed identity is correct.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Phpfilemanager | Dulldusk | 1.7.9 (including) | 1.7.9 (including) |
Extended Description
Attackers may be able to bypass weak authentication faster and/or with less effort than expected.