Steinbeis Allegra 7.5.0 Build 29 loadFieldMatch deserialization

Summaryinfo

A vulnerability described as very critical has been identified in Steinbeis Allegra 7.5.0 Build 29. Affected by this vulnerability is the function loadFieldMatch. Executing a manipulation can lead to deserialization. The identification of this vulnerability is CVE-2023-51642. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Steinbeis Allegra 7.5.0 Build 29 and classified as very critical. This vulnerability affects the function loadFieldMatch. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Allegra loadFieldMatch Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code 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 loadFieldMatch method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-22506.

The advisory is available at zerodayinitiative.com. This vulnerability was named CVE-2023-51642 since 12/20/2023. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/04/2025).

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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