CVE-2021-39877
Quick assessment
Affected
GitLab GitLab
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.
GitLab是美国GitLab公司的一款使用Ruby on Rails开发的、自托管的、Git（版本控制系统）项目仓库应用程序。该程序可用于查阅项目的文件内容、提交历史、Bug列表等。 GitLab 存在资源管理错误漏洞，该漏洞源于从版本 12.2 开始，在 GitLab 中发现了一个漏洞，该漏洞允许攻击者使用特制文件造成不受控制的资源消耗。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-39877
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was discovered in GitLab starting with version 12.2 that allows an attacker to cause uncontrolled resource consumption with a specially crafted file.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司的一款使用Ruby on Rails开发的、自托管的、Git（版本控制系统）项目仓库应用程序。该程序可用于查阅项目的文件内容、提交历史、Bug列表等。 GitLab 存在资源管理错误漏洞，该漏洞源于从版本 12.2 开始，在 GitLab 中发现了一个漏洞，该漏洞允许攻击者使用特制文件造成不受控制的资源消耗。
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-2021-39877
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2021-39877 (3)
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https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39877.json x_refsource_CONFIRM
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https://hackerone.com/reports/1077021 x_refsource_MISC
-
https://gitlab.com/gitlab-org/gitlab/-/issues/300095 x_refsource_MISC
Same Patch Batch · GitLab · 2021-10-04 · 12 CVEs total
| CVE-2021-39885 | 8.7 HIGH | GitLab EE 跨站脚本漏洞 |
| CVE-2021-39868 | 4.3 MEDIUM | GitLab 访问控制错误漏洞 |
| CVE-2021-22259 | 4.3 MEDIUM | GitLab 输入验证错误漏洞 |
| CVE-2021-39874 | 4.3 MEDIUM | GitLab 安全特征问题漏洞 |
| CVE-2021-39883 | 4.3 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-39871 | 4.3 MEDIUM | GitLab 安全特征问题漏洞 |
| CVE-2021-39873 | 4.3 MEDIUM | GitLab CE/EE 安全漏洞 |
| CVE-2021-39896 | 3.8 LOW | GitLab 代码问题漏洞 |
| CVE-2021-39899 | 2.9 LOW | GitLab 授权问题漏洞 |
| CVE-2021-39879 | 2.2 LOW | GitLab 访问控制错误漏洞 |
| CVE-2021-39900 | 2.0 LOW | GitLab 日志信息泄露漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-39877
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