CVE-2021-21242— Pre-Auth Unsafe Deserialization on AttachmentUploadServet
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I. Basic Information for CVE-2021-21242
Vulnerability Information
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Vulnerability Title
Pre-Auth Unsafe Deserialization on AttachmentUploadServet
Source: NVD (National Vulnerability Database)
Vulnerability Description
OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability which can lead to pre-auth remote code execution. AttachmentUploadServlet deserializes untrusted data from the `Attachment-Support` header. This Servlet does not enforce any authentication or authorization checks. This issue may lead to pre-auth remote code execution. This issue was fixed in 4.0.3 by removing AttachmentUploadServlet and not using deserialization
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Theonedev Onedev 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Theonedev Onedev是Theonedev团队的一个基于JAVA的多合一DevOps平台。该平台支持容器构建、编排、CI、Git管理、团队协作等功能，帮助开发者构建一个简单、功能强大的开发平台。 Theonedev Onedev before version 4.0.3 存在代码问题漏洞，该漏洞源于不强制执行任何身份验证或授权检查。攻击者可利用该漏洞在认证前远程代码执行。
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
II. Public POCs for CVE-2021-21242
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://github.com/theonedev/onedev/security/advisories/GHSA-5q3q-f373-2jv8x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-21242
Same Patch Batch · theonedev · 2021-01-15 · 10 CVEs total
| CVE-2021-21243 | 10.0 CRITICAL | Pre-Auth Unsafe Deserialization on KubernetesResource |
| CVE-2021-21244 | 10.0 CRITICAL | Pre-Auth SSTI via Bean validation message tampering |
| CVE-2021-21245 | 10.0 CRITICAL | Pre-Auth Arbitrary File Upload |
| CVE-2021-21247 | 9.6 CRITICAL | Post-Auth Unsafe Deserialization on BasePage (AJAX) |
| CVE-2021-21248 | 9.6 CRITICAL | Post-Auth Arbitrary Code execution via Groovy script injection |
| CVE-2021-21249 | 9.6 CRITICAL | Post-Auth Unsafe Yaml deserialization |
| CVE-2021-21246 | 8.6 HIGH | Pre-Auth Access token leak |
| CVE-2021-21250 | 7.7 HIGH | Post-Auth External Entity Expansion (XXE) |
| CVE-2021-21251 | 7.7 HIGH | ZipSlip Arbitrary File Upload |
IV. Related Vulnerabilities
Same vendor: theonedev
Same weakness: CWE-74
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V. Comments for CVE-2021-21242
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