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Vulnerability of Siemens SIMATIC S7-300/S7-400: information disclosure via ISO-TSAP Password

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via ISO-TSAP Password of Siemens SIMATIC S7-300/S7-400, in order to obtain sensitive information.
Vulnerable software: SIMATIC.
Severity of this announce: 2/4.
Creation date: 09/09/2020.
Références of this computer vulnerability: CERTFR-2020-AVI-550, CERTFR-2020-AVI-632, CVE-2020-15791, SSA-381684, VIGILANCE-VUL-33283.

Description of the vulnerability 

An attacker can bypass access restrictions to data via ISO-TSAP Password of Siemens SIMATIC S7-300/S7-400, in order to obtain sensitive information.
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This vulnerability announce impacts software or systems such as SIMATIC.

Our Vigil@nce team determined that the severity of this cybersecurity threat is medium.

The trust level is of type confirmed by the editor, with an origin of LAN.

An attacker with a expert ability can exploit this computer threat bulletin.

Solutions for this threat 

Siemens SIMATIC S7-300/S7-400: solution for ISO-TSAP Password.
The solution is indicated in information sources.
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