Quantum Secular Labs / Blog / Advisories

CVE-2018-6317: Claymore Dual Miner Project: Authentication bypass

CVE-2018-6317 is rated critical with a CVSS v3.0 base score of 9.1 and affects Claymore Dual Miner Project. Per its scoring, it can be exploited over the network, without authentication, without any user interaction.

Vulnerability description

The remote management interface in Claymore Dual Miner 10.5 and earlier is vulnerable to an unauthenticated format string vulnerability, allowing remote attackers to read memory or cause a denial of service.

Severity breakdown

CVSS v3.0 9.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

• Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
• Attack complexity: Low. No special conditions; the attack can be repeated reliably.
• Privileges required: None. No account or prior access is needed.
• User interaction: None. No action from any user is needed.
• Scope: Unchanged. Impact stays within the vulnerable component.
• Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
• Integrity impact: None. No loss of integrity.
• Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-134: Use of Externally-Controlled Format String

The product uses a function that accepts a format string as an argument, but the format string originates from an external source.

Affected products

• Claymore Dual Miner Project: up to and including 10.5

References

• https://www.exploit-db.com/exploits/43972/
• https://medium.com/%40res1n/claymore-dual-gpu-miner-10-5-format-strings-vulnerability-916ab3d2db30