CVE-2020-8866
This vulnerability allows remote attackers to create arbitrary files on affected installations of Horde Groupware Webmail Edition 5.2.22.
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Horde Groupware Webmail Edition 5.2.22 - PHAR Loading2020-03-11 · webapps · php
- Horde Groupware Webmail Edition 5.2.22 - PHP File Inclusion2020-03-11 · webapps · php
Impact
This vulnerability allows remote attackers to create arbitrary files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within add.php. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10125.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Horde | Groupware | Version 5.2.22 |
| Horde | Horde Form | before 2.0.20 |
| Debian | Debian Linux | Version 8.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://lists.debian.org/debian-lts-announce/2020/03/msg00036.html
- https://lists.horde.org/archives/announce/2020/001288.html
- https://www.zerodayinitiative.com/advisories/ZDI-20-275/
- https://lists.debian.org/debian-lts-announce/2020/03/msg00036.html
- https://lists.horde.org/archives/announce/2020/001288.html
- https://www.zerodayinitiative.com/advisories/ZDI-20-275/