CVE-2021-41171

Public Exploit
Bypass bruteforce protection on login form in elabftw

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory owasp.org Third-Party Advisory exploit-db.com
Affected: elabftw elabftw
Published at:
Updated at:

References

Link Tags
https://github.com/elabftw/elabftw/security/advisories/GHSA-q67h-5pc3-g6jv third party advisory
https://github.com/elabftw/elabftw/commit/8e92afeec4c3a68dc88333881b7e6307f425706b third party advisory patch
https://github.com/elabftw/elabftw/releases/tag/4.1.0 third party advisory release notes
https://owasp.org/www-community/Slow_Down_Online_Guessing_Attacks_with_Device_Cookies third party advisory
https://www.exploit-db.com/docs/50436 exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-41171?
CVE-2021-41171 has been scored as a medium severity vulnerability.
How to fix CVE-2021-41171?
To fix CVE-2021-41171, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41171 being actively exploited in the wild?
It is possible that CVE-2021-41171 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41171?
CVE-2021-41171 affects elabftw elabftw.
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