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Critical vulnerability in Schneider Electric Modicon PLCs can lead to RCE (CVE-2021-22779)

Help Net Securityby @helpnetsecurity ()2 min read2 · 1 read
Analyze CVE-2021-22779 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

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CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2021-22779
Authentication Bypass by Spoofing vulnerability exists in EcoStruxure Control Expert (all versions prior to V15.0 SP1, including all versions of Unity Pro)…
9.11%

From the original article

2 min read at helpnetsecurity.com

Researchers at Armis discovered an authentication bypass vulnerability (CVE-2021-22779) in Schneider Electric’s Modicon programmable logic controllers (PLCs) that can lead to remote-code-execution (RCE). The vulnerability, dubbed ModiPwn, allows for a complete takeover of impacted devices by leveraging the UMAS protocol, and impacts Modicon M340, M580 and other models from the Modicon series.

Help Net Security

By @helpnetsecurity · helpnetsecurity.com

Read the full article at Help Net Security

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