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computer vulnerability alert CVE-2016-9160

SIMATIC WinCC, PCS 7: out-of-bounds memory reading via ActiveX

Synthesis of the vulnerability

An attacker can force a read at an invalid address via ActiveX of SIMATIC WinCC, in order to trigger a denial of service, or to obtain sensitive information.
Impacted products: SIMATIC.
Severity: 2/4.
Creation date: 09/12/2016.
Identifiers: CERTFR-2016-AVI-405, CVE-2016-9160, SSA-693129, VIGILANCE-VUL-21346.

Description of the vulnerability

The SIMATIC WinCC product, included in PCS 7, offers a web service.

However, it tries to read a memory area located outside the expected range, which triggers a fatal error, or leads to the disclosure of a memory fragment.

An attacker can therefore force a read at an invalid address via ActiveX of SIMATIC WinCC, in order to trigger a denial of service, or to obtain sensitive information.
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