CVE-2021-41171
HIGH
Published Oct 22, 20214y ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
Published Oct 22, 2021 4y ago
Last Modified Jun 17, 2026 2w ago
Description
eLabFTW is an open source electronic lab notebook manager for research teams. In versions of eLabFTW before 4.1.0, it allows attackers to bypass a brute-force protection mechanism by using many different forged PHPSESSID values in HTTP Cookie header. This issue has been addressed by implementing brute force login protection, as recommended by Owasp with Device Cookies. This mechanism will not impact users and will effectively thwart any brute-force attempts at guessing passwords. The only correct way to address this is to upgrade to version 4.1.0. Adding rate limitation upstream of the eLabFTW service is of course a valid option, with or without upgrading.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
Public Exploit Known
Patch Available
Weaknesses 1
CWE-307
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| elabftw | elabftw | * | <4.1.0 |
References 5
- github.com https://github.com/elabftw/elabftw/commit/8e92afeec4c3a68dc88333881b7e6307f425706b
- github.com https://github.com/elabftw/elabftw/releases/tag/4.1.0
- github.com https://github.com/elabftw/elabftw/security/advisories/GHSA-q67h-5pc3-g6jv
- owasp.org https://owasp.org/www-community/Slow_Down_Online_Guessing_Attacks_with_Device_Cookies
- exploit-db.com https://www.exploit-db.com/docs/50436
Remediation
- github.com https://github.com/elabftw/elabftw/commit/8e92afeec4c3a68dc88333881b7e6307f425706b