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CVE-2021-21269— Path Traversal in Keymaker

Quick assessment

Affected
keymaker-mx keymaker
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.

Keymaker before version 0.2.0 存在路径遍历漏洞，该漏洞源于没有检查检查用户输入的rust的join方法，可能会使它进行路径遍历攻击，导致读取超过允许的文件。

CVSS 7.7 · High EPSS 1.39% · P71

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2021-21269

Vulnerability Information
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Vulnerability Title
Path Traversal in Keymaker
Source: CVE Program / CVE List V5
Vulnerability Description
Keymaker is a Mastodon Community Finder based Matrix Community serverlist page Server. In Keymaker before version 0.2.0, the assets endpoint did not check for the extension. The rust `join` method without checking user input might have made it abe to do a Path Traversal attack causing to read more files than allowed. This is fixed in version 0.2.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
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
Keymaker 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Keymaker before version 0.2.0 存在路径遍历漏洞，该漏洞源于没有检查检查用户输入的rust的join方法，可能会使它进行路径遍历攻击，导致读取超过允许的文件。
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
keymaker-mx keymaker < 0.2.0 -

II. Public POCs for CVE-2021-21269

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III. Intelligence Information for CVE-2021-21269

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Patches & Fixes for CVE-2021-21269 (1)

Vendor Advisories for CVE-2021-21269 (1)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2021-21269

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