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CVE-2024-23832— Mastodon Remote user impersonation and takeover

Quick assessment

Affected
mastodon mastodon
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.

Mastodon是一款基于ActivityPub的开源社交网络服务器。 Mastodon 3.5.17 之前、4.0.13 之前、4.1.13 之前、4.2.5 之前版本存在安全漏洞，该漏洞源于 ActivityPub Mastodon 允许配置 LDAP 进行身份验证，但验证不足，攻击者利用该漏洞可以冒充并接管任何远程帐户。

CVSS 9.4 · Critical EPSS 2.45% · P84

Possible ATT&CK Techniques 1 AI

T1556 · Modify Authentication Process
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I. Basic Information for CVE-2024-23832

Vulnerability Information
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Vulnerability Title
Mastodon Remote user impersonation and takeover
Source: CVE Program / CVE List V5
Vulnerability Description
Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Mastodon 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mastodon是一款基于ActivityPub的开源社交网络服务器。 Mastodon 3.5.17 之前、4.0.13 之前、4.1.13 之前、4.2.5 之前版本存在安全漏洞，该漏洞源于 ActivityPub Mastodon 允许配置 LDAP 进行身份验证，但验证不足，攻击者利用该漏洞可以冒充并接管任何远程帐户。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
mastodon mastodon < 3.5.17 -

II. Public POCs for CVE-2024-23832

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III. Intelligence Information for CVE-2024-23832

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Patches & Fixes for CVE-2024-23832 (1)

Vendor Advisories for CVE-2024-23832 (1)

Mailing List Discussions for CVE-2024-23832 (1)

IV. Related Vulnerabilities

Same product: mastodon
Same vendor: mastodon
Same weakness: CWE-290

V. Comments for CVE-2024-23832

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