Ghost up to 5.42.0 path traversal

Summaryinfo

A vulnerability has been found in Ghost up to 5.42.0 and classified as critical. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in path traversal. This vulnerability was named CVE-2023-32235. The attack may be initiated remotely. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Ghost up to 5.42.0. This affects an unknown part. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. The summary by CVE is:

Ghost before 5.42.1 allows remote attackers to read arbitrary files within the active theme's folder via /assets/built%2F..%2F..%2F/ directory traversal. This occurs in frontend/web/middleware/static-theme.js.

The weakness was presented 05/05/2023 as 378dd913aa8d0fd0da29b0ffced8884579598b0f. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-32235. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 271812 (Ghost CMS 5.42.1 - Path Traversal (CVE-2023-32235)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.42.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 378dd913aa8d0fd0da29b0ffced8884579598b0f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Exploit-DB (52408) and Tenable (271812). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Ghost

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10
• 5.11
• 5.12
• 5.13
• 5.14
• 5.15
• 5.16
• 5.17
• 5.18
• 5.19
• 5.20
• 5.21
• 5.22
• 5.23
• 5.24
• 5.25
• 5.26
• 5.27
• 5.28
• 5.29
• 5.30
• 5.31
• 5.32
• 5.33
• 5.34
• 5.35
• 5.36
• 5.37
• 5.38
• 5.39
• 5.40
• 5.41
• 5.42.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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