Dell PowerEdge Server BIOS and Dell iDRAC9, all versions, contains an Information Disclosure vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Information Disclosure.
The hardware does not fully clear security-sensitive values, such as keys and intermediate values in cryptographic operations, when debug mode is entered.
Security sensitive values, keys, intermediate steps of cryptographic operations, etc. are stored in temporary registers in the hardware. If these values are not cleared when debug mode is entered they may be accessed by a debugger allowing sensitive information to be accessible by untrusted parties.