8.8
HIGH
CVE-2021-41171
eLabFTW PHPSESSID Forgery Brute-Force Bypass
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.

INFO

Published Date :

Oct. 22, 2021, 7:15 p.m.

Last Modified :

Oct. 28, 2021, 4:40 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-41171 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Elabftw elabftw
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-41171.

URL Resource
https://github.com/elabftw/elabftw/commit/8e92afeec4c3a68dc88333881b7e6307f425706b Patch Third Party Advisory
https://github.com/elabftw/elabftw/releases/tag/4.1.0 Release Notes Third Party Advisory
https://github.com/elabftw/elabftw/security/advisories/GHSA-q67h-5pc3-g6jv Third Party Advisory
https://owasp.org/www-community/Slow_Down_Online_Guessing_Attacks_with_Device_Cookies Third Party Advisory
https://www.exploit-db.com/docs/50436 Exploit Third Party Advisory VDB Entry

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-41171 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-41171 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Oct. 28, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/elabftw/elabftw/commit/8e92afeec4c3a68dc88333881b7e6307f425706b No Types Assigned https://github.com/elabftw/elabftw/commit/8e92afeec4c3a68dc88333881b7e6307f425706b Patch, Third Party Advisory
    Changed Reference Type https://github.com/elabftw/elabftw/releases/tag/4.1.0 No Types Assigned https://github.com/elabftw/elabftw/releases/tag/4.1.0 Release Notes, Third Party Advisory
    Changed Reference Type https://github.com/elabftw/elabftw/security/advisories/GHSA-q67h-5pc3-g6jv No Types Assigned https://github.com/elabftw/elabftw/security/advisories/GHSA-q67h-5pc3-g6jv Third Party Advisory
    Changed Reference Type https://owasp.org/www-community/Slow_Down_Online_Guessing_Attacks_with_Device_Cookies No Types Assigned https://owasp.org/www-community/Slow_Down_Online_Guessing_Attacks_with_Device_Cookies Third Party Advisory
    Changed Reference Type https://www.exploit-db.com/docs/50436 No Types Assigned https://www.exploit-db.com/docs/50436 Exploit, Third Party Advisory, VDB Entry
    Added CPE Configuration OR *cpe:2.3:a:elabftw:elabftw:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-41171 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.20 }} 0.64%

score

0.89684

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability