CVE-2021-41171 Information

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 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/elabftw/elabftw/security/advisories/GHSA-q67h-5pc3-g6jv https://github.com/elabftw/elabftw/releases/tag/4.1.0 https://www.exploit-db.com/docs/50436 https://owasp.org/www-community/Slow_Down_Online_Guessing_Attacks_with_Device_Cookies https://github.com/elabftw/elabftw/commit/8e92afeec4c3a68dc88333881b7e6307f425706b

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8