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CVE-2023-36460— Mastodon vulnerable to arbitrary file creation through media attachments

Quick assessment

Affected
mastodon mastodon
Exploitation
High exploitation probability; assess promptly
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存在路径遍历漏洞，该漏洞源于允许攻击者创建和覆盖Mastodon有权访问的任何文件，并导致拒绝服务和远程代码执行。

CVSS 10.0 · Critical EPSS 40.11% · P99
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I. Basic Information for CVE-2023-36460

Vulnerability Information
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Vulnerability Title
Mastodon vulnerable to arbitrary file creation through media attachments
Source: CVE Program / CVE List V5
Vulnerability Description
Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 3.5.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, attackers using carefully crafted media files can cause Mastodon's media processing code to create arbitrary files at any location. This allows attackers to create and overwrite any file Mastodon has access to, allowing Denial of Service and arbitrary Remote Code Execution. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Mastodon 路径遍历漏洞
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存在路径遍历漏洞，该漏洞源于允许攻击者创建和覆盖Mastodon有权访问的任何文件，并导致拒绝服务和远程代码执行。
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
mastodon mastodon >= 3.5.0, < 3.5.9 -

II. Public POCs for CVE-2023-36460

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III. Intelligence Information for CVE-2023-36460

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Patches & Fixes for CVE-2023-36460 (1)

Vendor Advisories for CVE-2023-36460 (1)

Mailing List Discussions for CVE-2023-36460 (1)

Other References for CVE-2023-36460 (3)

Same Patch Batch · mastodon · 2023-07-06 · 4 CVEs total

CVE-2023-36459 9.3 CRITICAL Mastodon vulnerable to Cross-site Scripting through oEmbed preview cards
CVE-2023-36461 7.5 HIGH Mastodon vulnerable to Denial of Service through slow HTTP responses
CVE-2023-36462 5.4 MEDIUM Mastodon's verified profile links can be formatted in a misleading way

IV. Related Vulnerabilities

Same product: mastodon
Same vendor: mastodon
Same weakness: CWE-22

V. Comments for CVE-2023-36460

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