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CVE-2021-43834— Incorrect Authentication in elabftw

Quick assessment

Affected
elabftw elabftw
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Elabftw是一套开源的实验数据托管平台。该平台运行于Linux系统中，并支持存储多种对象。 eLabFTW存在授权问题漏洞，该漏洞允许攻击者可利用该漏洞身份验证为现有用户。它影响使用LDAP或SAML而不是(默认)本地密码机制进行身份验证的实例。用户至少应该升级到4.2.0版本。

CVSS 9.1 · Critical EPSS 0.98% · P59

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2021-43834

Vulnerability Information
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Vulnerability Title
Incorrect Authentication in elabftw
Source: CVE Program / CVE List V5
Vulnerability Description
eLabFTW is an electronic lab notebook manager for research teams. In versions prior to 4.2.0 there is a vulnerability which allows an attacker to authenticate as an existing user, if that user was created using a single sign-on authentication option such as LDAP or SAML. It impacts instances where LDAP or SAML is used for authentication instead of the (default) local password mechanism. Users should upgrade to at least version 4.2.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Elabftw 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elabftw是一套开源的实验数据托管平台。该平台运行于Linux系统中，并支持存储多种对象。 eLabFTW存在授权问题漏洞，该漏洞允许攻击者可利用该漏洞身份验证为现有用户。它影响使用LDAP或SAML而不是(默认)本地密码机制进行身份验证的实例。用户至少应该升级到4.2.0版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
elabftw elabftw < 4.2.0 -

II. Public POCs for CVE-2021-43834

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III. Intelligence Information for CVE-2021-43834

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Vendor Advisories for CVE-2021-43834 (1)

Other References for CVE-2021-43834 (1)

IV. Related Vulnerabilities

Same product: elabftw
Same vendor: elabftw
Same weakness: CWE-287

V. Comments for CVE-2021-43834

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