VAR-201702-0073
Vulnerability from variot - Updated: 2025-04-20 23:29An issue was discovered in IBHsoftec S7-SoftPLC prior to 4.12b. Object memory can read a network packet that is larger than the space that is available, a Heap-based Buffer Overflow. This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of IBHsoftec SoftPLC. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of packets by the service listening on TCP port 502. The issue lies in the failure to properly validate the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute arbitrary code under the context of Administrator. IBHsoftec S7-SoftPLC is a software program for the replacement of hardware PLCs by IBHsoftec, Germany. Failed exploit attempts will likely cause denial-of-service conditions
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