Fatek FvDesigner FPJ File Parser out-of-bounds write

Summaryinfo

A vulnerability, which was classified as critical, has been found in Fatek FvDesigner. Affected by this vulnerability is an unknown functionality of the component FPJ File Parser. The manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2023-34267. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Fatek FvDesigner (affected version unknown). This issue affects an unknown functionality of the component FPJ File Parser. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Fatek Automation FvDesigner FPJ File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fatek Automation FvDesigner. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of FPJ files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-18170.

The weakness was shared 06/19/2023. The advisory is shared at zerodayinitiative.com. The identification of this vulnerability is CVE-2023-34267 since 05/31/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/14/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Fatek

Name

• FvDesigner

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CPE 2.2info

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