CVE-2021-22168
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 Nuget Api是美国Gitlab公司的一个为Gitlab提供与Nuget服务器提供交互的Api工具。该工具可用于下载软件包，获取元数据，发布新软件包以及执行官方NuGet客户端中可用的大多数其他操作。 GitLab NuGet API 12.8 之后的版本存在安全漏洞，该漏洞源于一个正则表达式拒绝服务问题。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-22168
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A regular expression denial of service issue has been discovered in NuGet API affecting all versions of GitLab starting from version 12.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Gitlab Nuget Api 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gitlab Nuget Api是美国Gitlab公司的一个为Gitlab提供与Nuget服务器提供交互的Api工具。该工具可用于下载软件包，获取元数据，发布新软件包以及执行官方NuGet客户端中可用的大多数其他操作。 GitLab NuGet API 12.8 之后的版本存在安全漏洞，该漏洞源于一个正则表达式拒绝服务问题。
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-2021-22168
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2021-22168 (2)
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https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22168.json x_refsource_CONFIRM
-
https://gitlab.com/gitlab-org/gitlab/-/issues/289950 x_refsource_MISC
Same Patch Batch · GitLab · 2021-01-15 · 5 CVEs total
| CVE-2021-22171 | 7.3 HIGH | GitLab 授权问题漏洞 |
| CVE-2021-22167 | 5.3 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-22166 | 5.3 MEDIUM | GitLab 资源管理错误漏洞 |
| CVE-2020-26414 | 4.3 MEDIUM | Gitlab Community Edition 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-22168
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