Vulnerability Description
Incorrect Access Control in the FileEditor (/Admin/Views/FileEditor/) in FlexDotnetCMS before v1.5.11 allows an authenticated remote attacker to read and write to existing files outside the web root. The files can be accessed via directory traversal, i.e., by entering a .. (dot dot) path such as ..\..\..\..\..\<file> in the input field of the FileEditor. In FlexDotnetCMS before v1.5.8, it is also possible to access files by specifying the full path (e.g., C:\<file>). The files can then be edited via the FileEditor.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Flexdotnetcms Project | Flexdotnetcms | < 1.5.11 |
Related Weaknesses (CWE)
References
- https://blog.vonahi.io/whats-in-a-re-name/ExploitThird Party Advisory
- https://github.com/MacdonaldRobinson/FlexDotnetCMS/releases/tag/v1.5.11Release NotesThird Party Advisory
- https://blog.vonahi.io/whats-in-a-re-name/ExploitThird Party Advisory
- https://github.com/MacdonaldRobinson/FlexDotnetCMS/releases/tag/v1.5.11Release NotesThird Party Advisory
FAQ
What is CVE-2020-27385?
CVE-2020-27385 is a vulnerability with a CVSS score of 8.1 (HIGH). Incorrect Access Control in the FileEditor (/Admin/Views/FileEditor/) in FlexDotnetCMS before v1.5.11 allows an authenticated remote attacker to read and write to existing files outside the web root. ...
How severe is CVE-2020-27385?
CVE-2020-27385 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-27385?
Check the references section above for vendor advisories and patch information. Affected products include: Flexdotnetcms Project Flexdotnetcms.