Dell Integrated Dell Remote Access Controller 9, 14G versions prior to 7.00.00.174, 15G and 16G versions prior to 7.10.90.00, contain an Exposure of Sensitive System Information Due to Uncleared Debug Information vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to information disclosure.
Weakness
The hardware does not fully clear security-sensitive values, such as keys and intermediate values in cryptographic operations, when debug mode is entered.
Extended Description
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.
Potential Mitigations
- Whenever debug mode is enabled, all registers containing sensitive assets must be cleared.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/150.html
- https://cwe.mitre.org/data/definitions/204.html
- https://cwe.mitre.org/data/definitions/37.html
- https://cwe.mitre.org/data/definitions/545.html