A vulnerability has been found in WAGO PFC 200 (affected version not known) and classified as problematic. This vulnerability affects some unknown functionality of the component iocheckd Service. The manipulation as part of a Crafted Packet leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect availability. CVE summarizes:

An exploitable double free vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.

The weakness was shared 03/23/2020. This vulnerability was named CVE-2019-5184 since 01/04/2019. The exploitation appears to be easy. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

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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Vendor

• WAGO

Name

• PFC 200

License

• commercial

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CPE 2.2info

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