Vulnerability-Lookup

CNVD-2021-87036

Vulnerability from cnvd - Published: 2021-11-06

Title

GitLab EE跨站脚本漏洞（CNVD-2021-87036）

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 EE 13.5.0-14.3.1之间版本存在跨站脚本漏洞。该漏洞源于程序在合并请求创建页面中未对用户数据进行充分过滤。远程认证的攻击者可利用该漏洞注入并执行任意HTML和脚本代码。

Severity

低

Patch Name

GitLab EE跨站脚本漏洞（CNVD-2021-87036）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39885.json

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-39885

Impacted products

Name
GitLab GitLab Enterprise >=13.5.0，<14.3.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-39885",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-39885"
    }
  },
  "description": "GitLab\u662f\u7f8e\u56fdGitLab\u516c\u53f8\u7684\u4e00\u6b3e\u4f7f\u7528Ruby on Rails\u5f00\u53d1\u7684\u3001\u81ea\u6258\u7ba1\u7684\u3001Git\uff08\u7248\u672c\u63a7\u5236\u7cfb\u7edf\uff09\u9879\u76ee\u4ed3\u5e93\u5e94\u7528\u7a0b\u5e8f\u3002\u8be5\u7a0b\u5e8f\u53ef\u7528\u4e8e\u67e5\u9605\u9879\u76ee\u7684\u6587\u4ef6\u5185\u5bb9\u3001\u63d0\u4ea4\u5386\u53f2\u3001Bug\u5217\u8868\u7b49\u3002\n\nGitLab EE 13.5.0-14.3.1\u4e4b\u95f4\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u5408\u5e76\u8bf7\u6c42\u521b\u5efa\u9875\u9762\u4e2d\u672a\u5bf9\u7528\u6237\u6570\u636e\u8fdb\u884c\u5145\u5206\u8fc7\u6ee4\u3002\u8fdc\u7a0b\u8ba4\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6ce8\u5165\u5e76\u6267\u884c\u4efb\u610fHTML\u548c\u811a\u672c\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39885.json",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-87036",
  "openTime": "2021-11-06",
  "patchDescription": "GitLab\u662f\u7f8e\u56fdGitLab\u516c\u53f8\u7684\u4e00\u6b3e\u4f7f\u7528Ruby on Rails\u5f00\u53d1\u7684\u3001\u81ea\u6258\u7ba1\u7684\u3001Git\uff08\u7248\u672c\u63a7\u5236\u7cfb\u7edf\uff09\u9879\u76ee\u4ed3\u5e93\u5e94\u7528\u7a0b\u5e8f\u3002\u8be5\u7a0b\u5e8f\u53ef\u7528\u4e8e\u67e5\u9605\u9879\u76ee\u7684\u6587\u4ef6\u5185\u5bb9\u3001\u63d0\u4ea4\u5386\u53f2\u3001Bug\u5217\u8868\u7b49\u3002\r\n\r\nGitLab EE 13.5.0-14.3.1\u4e4b\u95f4\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u5408\u5e76\u8bf7\u6c42\u521b\u5efa\u9875\u9762\u4e2d\u672a\u5bf9\u7528\u6237\u6570\u636e\u8fdb\u884c\u5145\u5206\u8fc7\u6ee4\u3002\u8fdc\u7a0b\u8ba4\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6ce8\u5165\u5e76\u6267\u884c\u4efb\u610fHTML\u548c\u811a\u672c\u4ee3\u7801\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "GitLab EE\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-87036\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "GitLab GitLab Enterprise \u003e=13.5.0\uff0c\u003c14.3.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-39885",
  "serverity": "\u4f4e",
  "submitTime": "2021-11-05",
  "title": "GitLab EE\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-87036\uff09"
}

CVE-2021-39885 (GCVE-0-2021-39885)

Vulnerability from cvelistv5 – Published: 2021-10-04 16:33 – Updated: 2024-08-04 02:20

Summary

A Stored XSS in merge request creation page in all versions of Gitlab EE starting from 13.7 before 14.1.7, all versions starting from 14.2 before 14.2.5, and all versions starting from 14.3 before 14.3.1 allows an attacker to execute arbitrary JavaScript code on the victim's behalf via malicious approval rule names

Severity

8.7 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CWE

Improper neutralization of input during web page generation ('cross-site scripting') in GitLab

Assigner

GitLab mitre root

References

3 references

URL	Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/341140	x_refsource_MISC
https://hackerone.com/reports/1342009	x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
GitLab	GitLab	Affected: >=13.7, <14.1.7 Affected: >=14.2, <14.2.5 Affected: >=14.3, <14.3.1

Credits

Thanks joaxcar for reporting this vulnerability through our HackerOne bug bounty program

Show details on NVD website

JSON

To clipboard

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            "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39885.json"
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    "cna": {
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            }
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      ],
      "credits": [
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        }
      ],
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          "url": "https://hackerone.com/reports/1342009"
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            },
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.