Vulnerability-Lookup

CNVD-2021-13672

Vulnerability from cnvd - Published: 2021-03-01

Title

CloudBees Jenkins TOCTOU竞争条件漏洞

Description

Jenkins是一个用Java编写的开源持续集成工具，主要用于持续、自动的构建/测试软件项目、监控外部任务的运行。 Jenkins 2.275、LTS 2.263.2存在TOCTOU竞争条件漏洞。攻击者可通过工作区和已归档工件浏览器利用该漏洞读取任意文件。

Severity

低

Patch Name

CloudBees Jenkins TOCTOU竞争条件漏洞的补丁

Patch Description

Jenkins是一个用Java编写的开源持续集成工具，主要用于持续、自动的构建/测试软件项目、监控外部任务的运行。 Jenkins 2.275、LTS 2.263.2存在TOCTOU竞争条件漏洞。攻击者可通过工作区和已归档工件浏览器利用该漏洞读取任意文件。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新：https://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197

Reference

http://www.openwall.com/lists/oss-security/2021/01/26/2

Impacted products

Name
['CloudBees Jenkins 2.275', 'CloudBees Jenkins LTS 2.263.2']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21615",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-21615"
    }
  },
  "description": "Jenkins\u662f\u4e00\u4e2a\u7528Java\u7f16\u5199\u7684\u5f00\u6e90\u6301\u7eed\u96c6\u6210\u5de5\u5177\uff0c\u4e3b\u8981\u7528\u4e8e\u6301\u7eed\u3001\u81ea\u52a8\u7684\u6784\u5efa/\u6d4b\u8bd5\u8f6f\u4ef6\u9879\u76ee\u3001\u76d1\u63a7\u5916\u90e8\u4efb\u52a1\u7684\u8fd0\u884c\u3002\n\nJenkins 2.275\u3001LTS 2.263.2\u5b58\u5728TOCTOU\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5de5\u4f5c\u533a\u548c\u5df2\u5f52\u6863\u5de5\u4ef6\u6d4f\u89c8\u5668\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u4efb\u610f\u6587\u4ef6\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1ahttps://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-13672",
  "openTime": "2021-03-01",
  "patchDescription": "Jenkins\u662f\u4e00\u4e2a\u7528Java\u7f16\u5199\u7684\u5f00\u6e90\u6301\u7eed\u96c6\u6210\u5de5\u5177\uff0c\u4e3b\u8981\u7528\u4e8e\u6301\u7eed\u3001\u81ea\u52a8\u7684\u6784\u5efa/\u6d4b\u8bd5\u8f6f\u4ef6\u9879\u76ee\u3001\u76d1\u63a7\u5916\u90e8\u4efb\u52a1\u7684\u8fd0\u884c\u3002\r\n\r\nJenkins 2.275\u3001LTS 2.263.2\u5b58\u5728TOCTOU\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5de5\u4f5c\u533a\u548c\u5df2\u5f52\u6863\u5de5\u4ef6\u6d4f\u89c8\u5668\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u4efb\u610f\u6587\u4ef6\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": "CloudBees Jenkins TOCTOU\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "CloudBees Jenkins 2.275",
      "CloudBees Jenkins LTS 2.263.2"
    ]
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2021/01/26/2",
  "serverity": "\u4f4e",
  "submitTime": "2021-01-27",
  "title": "CloudBees Jenkins TOCTOU\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e"
}

CVE-2021-21615 (GCVE-0-2021-21615)

Vulnerability from cvelistv5 – Published: 2021-01-26 10:55 – Updated: 2024-08-03 18:16

Summary

Jenkins 2.275 and LTS 2.263.2 allows reading arbitrary files using the file browser for workspaces and archived artifacts due to a time-of-check to time-of-use (TOCTOU) race condition.

Severity

No CVSS data available.

Assigner

jenkins mitre root

References

2 references

URL	Tags
https://www.jenkins.io/security/advisory/2021-01-…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2021/01/26/2	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
Jenkins project	Jenkins	Affected: 2.275 Affected: LTS 2.263.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:16:23.697Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197"
          },
          {
            "name": "[oss-security] 20210126 Vulnerability in Jenkins",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/01/26/2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Jenkins",
          "vendor": "Jenkins project",
          "versions": [
            {
              "status": "affected",
              "version": "2.275"
            },
            {
              "status": "affected",
              "version": "LTS 2.263.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Jenkins 2.275 and LTS 2.263.2 allows reading arbitrary files using the file browser for workspaces and archived artifacts due to a time-of-check to time-of-use (TOCTOU) race condition."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-24T15:50:34.887Z",
        "orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
        "shortName": "jenkins"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197"
        },
        {
          "name": "[oss-security] 20210126 Vulnerability in Jenkins",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/01/26/2"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "jenkinsci-cert@googlegroups.com",
          "ID": "CVE-2021-21615",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Jenkins",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "=",
                            "version_value": "2.275"
                          },
                          {
                            "version_affected": "=",
                            "version_value": "LTS 2.263.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Jenkins project"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Jenkins 2.275 and LTS 2.263.2 allows reading arbitrary files using the file browser for workspaces and archived artifacts due to a time-of-check to time-of-use (TOCTOU) race condition."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197",
              "refsource": "CONFIRM",
              "url": "https://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197"
            },
            {
              "name": "[oss-security] 20210126 Vulnerability in Jenkins",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/01/26/2"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
    "assignerShortName": "jenkins",
    "cveId": "CVE-2021-21615",
    "datePublished": "2021-01-26T10:55:13.000Z",
    "dateReserved": "2021-01-04T00:00:00.000Z",
    "dateUpdated": "2024-08-03T18:16:23.697Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.

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Action not permitted

CNVD-2021-13672

CVE-2021-21615 (GCVE-0-2021-21615)

Tags

Sightings

Nomenclature

Related by attack behaviour