CVE-2019-20457
CRITICAL EPSS 49.8%
Published Nov 7, 20241y ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Published Nov 7, 2024 1y ago
Last Modified Jun 17, 2026 2w ago
Description
An issue was discovered on Brother MFC-J491DW C1806180757 devices. The printer's web-interface password hash can be retrieved without authentication, because the response header of any failed login attempt returns an incomplete authorization cookie. The value of the authorization cookie is the MD5 hash of the password in hexadecimal. An attacker can easily derive the true MD5 hash from this, and use offline cracking attacks to obtain administrative access to the device.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None
Threat Intelligence
EPSS Exploit Probability
49.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-276
References 4
- seclists.org http://seclists.org/fulldisclosure/2024/Jul/14
- global.brother https://global.brother
- seclists.org https://seclists.org/fulldisclosure/2024/Jul/14
- support.brother.com https://support.brother.com/g/s/security/en/index.html
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.