Information disclosure in Redmine - CVE-2021-31866

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Main Vulnerability Database Vulnerabilities #VU52846

Information disclosure in Redmine - CVE-2021-31866

Published: May 4, 2021


Vulnerability identifier: #VU52846
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-31866
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Redmine
Software vendor:
Ruby

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote attacker can learn the values of internal authentication keys by observing timing differences in string comparison operations within SysController and MailHandlerController.


Remediation

Install updates from vendor's website.

External links