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CVE-2021-43833— Account takeover 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，该漏洞允许任何经过身份验证的用户通过设置一个特别设计的电子邮件地址来访问任意账户。此漏洞影响所有未设置显式电子邮件域名允许列表的实例。注意，虽然管理员和目标用户都没有收到更改通知，但攻击者可利用该漏洞需要控制帐户。

CVSS 8.1 · High EPSS 0.81% · P54

Possible ATT&CK Techniques 1 AI

T1136.002 · Domain Account
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I. Basic Information for CVE-2021-43833

Vulnerability Information
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Vulnerability Title
Account takeover 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 any authenticated user to gain access to arbitrary accounts by setting a specially crafted email address. This vulnerability impacts all instances that have not set an explicit email domain name allowlist. Note that whereas neither administrators nor targeted users are notified of a change, an attacker will need to control an account. The default settings require administrators to validate newly created accounts. The problem has been patched. Users should upgrade to at least version 4.2.0. For users unable to upgrade enabling an email domain allow list (from Sysconfig panel, Security tab) will completely resolve the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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，该漏洞允许任何经过身份验证的用户通过设置一个特别设计的电子邮件地址来访问任意账户。此漏洞影响所有未设置显式电子邮件域名允许列表的实例。注意，虽然管理员和目标用户都没有收到更改通知，但攻击者可利用该漏洞需要控制帐户。
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-2021-43833

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III. Intelligence Information for CVE-2021-43833

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Vendor Advisories for CVE-2021-43833 (1)

Other References for CVE-2021-43833 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-43833

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