A vulnerability, which was classified as critical, was found in IIoT Monitor 3.1.38. Affected is an unknown functionality of the component File Upload. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An unrestricted Upload of File with Dangerous Type vulnerability exists on numerous methods of the IIoT Monitor 3.1.38 software that could allow upload and execution of malicious files.

The bug was discovered 12/20/2018. The weakness was presented 12/24/2018 by rgod with Zero Day Initiative (Website). The advisory is shared for download at schneider-electric.com. This vulnerability is traded as CVE-2018-7836 since 03/08/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1608.002.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k.

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

See 128387, 128389 and 130595 for similar entries.

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• IIoT

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• Monitor

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• 3.1.38

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