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Bleichenbacher

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medium advisory

Hitachi Energy GMS600 Vulnerable to Bleichenbacher Attack via CVE-2022-4304

Hitachi Energy GMS600 versions 1.3.0 and 1.3.1 are affected by CVE-2022-4304, a vulnerability in the OpenSSL RSA Decryption implementation; an attacker could exploit this timing-based side channel to recover plaintext across a network in a Bleichenbacher-style attack by sending trial messages to the server and recording processing times, eventually decrypting application data.

GMS600 versions 1.3.0 and 1.3.1 bleichenbacher timing attack openssl critical infrastructure
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