Fatek FvDesigner FPJ File Parser out-of-bounds write

Summaryinfo

A vulnerability classified as critical has been found in Fatek FvDesigner. This impacts an unknown function of the component FPJ File Parser. Performing a manipulation results in out-of-bounds write. This vulnerability is reported as CVE-2023-34269. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Fatek FvDesigner (version now known). This affects some unknown processing of the component FPJ File Parser. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on 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-18173.

The weakness was disclosed 06/19/2023. It is possible to read the advisory at zerodayinitiative.com. This vulnerability is uniquely identified as CVE-2023-34269 since 05/31/2023. The technical details are unknown and an exploit is not publicly available. The pricing 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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