Steinbeis Allegra 7.5.0 Build 29 downloadAttachmentGlobal path traversal

Summaryinfo

A vulnerability classified as critical has been found in Steinbeis Allegra 7.5.0 Build 29. This issue affects the function downloadAttachmentGlobal. This manipulation causes path traversal. The identification of this vulnerability is CVE-2023-52334. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Steinbeis Allegra 7.5.0 Build 29. Affected by this vulnerability is the function downloadAttachmentGlobal. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

Allegra downloadAttachmentGlobal Directory Traversal Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Allegra. Although authentication is required to exploit this vulnerability, product implements a registration mechanism that can be used to create a user with a sufficient privilege level. The specific flaw exists within the downloadAttachmentGlobal action. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-22507.

The advisory is shared at zerodayinitiative.com. This vulnerability is known as CVE-2023-52334 since 01/11/2024. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 7.5.1 eliminates this vulnerability. The upgrade is hosted for download at trackplus.com.

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Productinfo

Vendor

• Steinbeis

Name

• Allegra

Version

• 7.5.0 Build 29

CPE 2.3info

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CPE 2.2info

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