CVE-2024-34340: Authentication Bypass when using using older password hashes
First published: Mon May 13 2024(Updated: )
Cacti provides an operational monitoring and fault management framework. Prior to version 1.2.27, Cacti calls `compat_password_hash` when users set their password. `compat_password_hash` use `password_hash` if there is it, else use `md5`. When verifying password, it calls `compat_password_verify`. In `compat_password_verify`, `password_verify` is called if there is it, else use `md5`. `password_verify` and `password_hash` are supported on PHP < 5.5.0, following PHP manual. The vulnerability is in `compat_password_verify`. Md5-hashed user input is compared with correct password in database by `$md5 == $hash`. It is a loose comparison, not `===`. It is a type juggling vulnerability. Version 1.2.27 contains a patch for the issue.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/cacti | <=1.2.16+ds1-2+deb11u3<=1.2.24+ds1-1+deb12u2 | 1.2.16+ds1-2+deb11u4 1.2.24+ds1-1+deb12u4 1.2.27+ds1-2 |
| Cacti Cacti | <1.2.27 | |
| Fedoraproject Fedora | =39 |
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Reference Links
- https://github.com/Cacti/cacti/security/advisories/GHSA-37x7-mfjv-mm7m
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RBEOAFKRARQHTDIYSL723XAFJ2Q6624X/
- https://launchpad.net/bugs/cve/CVE-2024-34340
- https://github.com/Cacti/cacti/commit/6183961089980322dfd9fd8011ade0f41703eaea
- https://security-tracker.debian.org/tracker/CVE-2024-34340
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-34340
- https://nvd.nist.gov/vuln/detail/CVE-2024-34340
- https://ubuntu.com/security/CVE-2024-34340
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