Hitachi Energy GMS600 OpenSSL timing flaw
🔒 Hitachi Energy reported that GMS600 versions are affected by CVE-2022-4304, a timing-based side-channel in OpenSSL RSA decryption that can allow recovery of pre-master secrets after many trial messages. The flaw impacts all RSA padding modes and can enable decryption of TLS application data. Vendor mitigation is to upgrade to version 1.3.2; CISA reiterates network isolation and defensive best practices.
