SB2018110718 - Information disclosure in self-encrypting drives Micron and Samsung
Published: November 7, 2018
Security Bulletin ID
SB2018110718
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Physical access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2018-12037)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a physical attacker to obtain potentially sensitive information on the target system.
The weakness exists due to the absence of a cryptographic link between the password provided by the end user and the cryptographic key used to encrypt user data. A physical attacker can access the key without knowing the password provided by the end user and decrypt information encrypted with that key.
2) Information disclosure (CVE-ID: CVE-2018-12038)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a physical attacker to obtain potentially sensitive information on the target system.
The weakness exists due to key information is stored within a wear-leveled storage chip. A physical attacker can update a key with a new password and access previous version of the key (either unprotected, or with an old password), negating the need to know the updated password.
Remediation
Install update from vendor's website.