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CVE-2018-25332— GitBucket 4.23.1 Unauthenticated Remote Code Execution

Quick assessment

Affected
gitbucket GitBucket
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.

GitBucket是gitbucket开源的一个基于Scala的Git代码托管平台。 GitBucket 4.23.1版本存在访问控制错误漏洞，该漏洞源于弱秘密令牌生成和不安全的文件上传功能，可能导致未经身份验证的攻击者执行任意命令。

CVSS 9.8 · Critical EPSS 0.59% · P46

Affected Version Matrix 1

VendorProduct Version RangeStatus
gitbucket GitBucket 4.23.1 affected
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I. Basic Information for CVE-2018-25332

Vulnerability Information
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Vulnerability Title
GitBucket 4.23.1 Unauthenticated Remote Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
GitBucket 4.23.1 contains an unauthenticated remote code execution vulnerability that allows attackers to execute arbitrary commands by exploiting weak secret token generation and insecure file upload functionality. Attackers can brute-force the Blowfish encryption key, upload a malicious JAR plugin via the git-lfs endpoint, and execute system commands through an exposed exploit endpoint.
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:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
GitBucket 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitBucket是gitbucket开源的一个基于Scala的Git代码托管平台。 GitBucket 4.23.1版本存在访问控制错误漏洞，该漏洞源于弱秘密令牌生成和不安全的文件上传功能，可能导致未经身份验证的攻击者执行任意命令。
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
gitbucket GitBucket 4.23.1 -

II. Public POCs for CVE-2018-25332

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III. Intelligence Information for CVE-2018-25332

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Vendor Advisories for CVE-2018-25332 (1)

Exploits & Public PoCs for CVE-2018-25332 (1)

Vendor Pages for CVE-2018-25332 (1)

IV. Related Vulnerabilities

Same product: GitBucket
Same weakness: CWE-306

V. Comments for CVE-2018-25332

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