Vulnerability · Published May 30, 2023 · Assigned by GitHub_M
CVE-2023-33177Xibo CMS vulnerable to Remote Code Execution through Zip Slip
High 8.8
In plain English
A high-severity path traversal in xibo-cms from xibosignage. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 7.0% (higher than 94% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
Xibo is a content management system (CMS). A path traversal vulnerability exists in the Xibo CMS whereby a specially crafted zip file can be uploaded to the CMS via the layout import function by an authenticated user which would allow creation of files outside of the CMS library directory as the webserver user. This can be used to upload a PHP webshell inside the web root directory and achieve remote code execution as the webserver user. Users should upgrade to version 2.3.17 or 3.3.5, which fix this issue. Customers who host their CMS with Xibo Signage have already received an upgrade or patch to resolve this issue regardless of the CMS version that they are running.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| xibosignage | xibo-cms | >= 1.8.0, < 2.3.17>= 3.0.0, < 3.3.5 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqv x_refsource_CONFIRM
- https://github.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658 x_refsource_MISC
- https://github.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9 x_refsource_MISC
- https://claroty.com/team82/disclosure-dashboard x_refsource_MISC
- https://xibosignage.com/blog/security-advisory-2023-05/ x_refsource_MISC