CVE-2021-31866
Last modified
CVE-2021-31866 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Redmine before 4.0.9 and 4.1.x before 4.1.3 allows an attacker to learn the values of internal authentication keys by observing timing differences in string comparison operations within SysController and MailHandlerController.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.
Description
Redmine before 4.0.9 and 4.1.x before 4.1.3 allows an attacker to learn the values of internal authentication keys by observing timing differences in string comparison operations within SysController and MailHandlerController.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redmine | Redmine | < 4.0.9 |
| Redmine | Redmine | >= 4.1.0, < 4.1.3 |
| Debian | Debian Linux | 9.0 |
References
- https://lists.debian.org/debian-lts-announce/2021/05/msg00013.htmlMailing List, Third Party Advisory
- https://www.redmine.org/news/131Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/05/msg00013.htmlMailing List, Third Party Advisory
- https://www.redmine.org/news/131Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-31866?
How severe is CVE-2021-31866?
How do I fix CVE-2021-31866?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-31859Incorrect privileges in the MU55 FlexiSpooler service in YSo…7.8
- CVE-2021-3186A Stored Cross-site scripting (XSS) vulnerability in /main.h…5.4
- CVE-2021-31862SysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parame…6.1
- CVE-2021-31863Insufficient input validation in the Git repository integrat…7.5
- CVE-2021-31864Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4…5.3
- CVE-2021-31865Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4…5.3
- CVE-2021-31867Pimcore Customer Data Framework version 3.0.0 and earlier su…7.5
- CVE-2021-31868Rapid7 Nexpose version 6.6.95 and earlier allows authenticat…5.4
- CVE-2021-31869Pimcore AdminBundle version 6.8.0 and earlier suffers from a…7.5
- CVE-2021-3187An issue was discovered in BeyondTrust Privilege Management …8.8
- CVE-2021-31870An issue was discovered in klibc before 2.0.9. Multiplicatio…9.8
- CVE-2021-31871An issue was discovered in klibc before 2.0.9. An integer ov…7.5
Are you affected by CVE-2021-31866?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST