ZDI-CAN-14204: Omron CX-One FLN File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Omron CX-One. 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 FLN files in the CX-FLnet module. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

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• agent/references
• agent/softwarecombine
• collector/zdi-advisory
• source/ZDI
• alias/ZDI-22-374
• alias/ZDI-CAN-14204
• alias/CVE-2022-21137
• agent/software-canonical-lookup
• agent/title
• agent/severity
• agent/tags
• agent/description
• agent/event
• agent/type
• vendor/omron
• canonical/omron cx-one