CVE-2023-33177

Xibo CMS vulnerable to Remote Code Execution through Zip Slip

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

CVSS Scores

NISTv3.1 8.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-05-17 CVE Reserved
2023-05-30 CVE Published
2024-08-02 CVE Updated
2024-09-03 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (5)

URL	Tag	Source
https://claroty.com/team82/disclosure-dashboard	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658	2023-06-06
https://github.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9	2023-06-06
https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqv	2023-06-06

URL	Date	SRC
https://xibosignage.com/blog/security-advisory-2023-05	2023-06-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Xibosignage Search vendor "Xibosignage"		Xibo Search vendor "Xibosignage" for product "Xibo"				>= 1.8.0 < 2.3.17 Search vendor "Xibosignage" for product "Xibo" and version " >= 1.8.0 < 2.3.17"		-		Affected
Xibosignage Search vendor "Xibosignage"		Xibo Search vendor "Xibosignage" for product "Xibo"				>= 3.0.0 < 3.3.5 Search vendor "Xibosignage" for product "Xibo" and version " >= 3.0.0 < 3.3.5"		-		Affected