Vulnerability-Lookup

CNVD-2021-39163

Vulnerability from cnvd - Published: 2021-06-03

Title

CloudBees Jenkins Filesystem Trigger Plugin XML外部实体注入漏洞

Description

CloudBees Jenkins（Hudson Labs）是美国CloudBees公司的一套基于Java开发的持续集成工具。该产品主要用于监控持续的软件版本发布/测试项目和一些定时执行的任务。 Jenkins Filesystem Trigger Plugin 0.40及之前版本存在XML外部实体注入漏洞。该漏洞源于程序未配置XML解析器以防止XML外部实体（XXE）攻击。具有Job/Configure权限的攻击者可利用该漏洞借助特制的XML文件外部实体从polling Jenkins控制器或服务器端提取机密，造成服务器端请求伪造或拒绝服务。

Severity

中

Patch Name

CloudBees Jenkins Filesystem Trigger Plugin XML外部实体注入漏洞的补丁

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://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2339

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-21657

Impacted products

Name
CloudBees Jenkins Filesystem Trigger Plugin <=0.40

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21657",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-21657"
    }
  },
  "description": "CloudBees Jenkins\uff08Hudson Labs\uff09\u662f\u7f8e\u56fdCloudBees\u516c\u53f8\u7684\u4e00\u5957\u57fa\u4e8eJava\u5f00\u53d1\u7684\u6301\u7eed\u96c6\u6210\u5de5\u5177\u3002\u8be5\u4ea7\u54c1\u4e3b\u8981\u7528\u4e8e\u76d1\u63a7\u6301\u7eed\u7684\u8f6f\u4ef6\u7248\u672c\u53d1\u5e03/\u6d4b\u8bd5\u9879\u76ee\u548c\u4e00\u4e9b\u5b9a\u65f6\u6267\u884c\u7684\u4efb\u52a1\u3002\n\nJenkins Filesystem Trigger Plugin 0.40\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728XML\u5916\u90e8\u5b9e\u4f53\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u914d\u7f6eXML\u89e3\u6790\u5668\u4ee5\u9632\u6b62XML\u5916\u90e8\u5b9e\u4f53\uff08XXE\uff09\u653b\u51fb\u3002\u5177\u6709Job/Configure\u6743\u9650\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u501f\u52a9\u7279\u5236\u7684XML\u6587\u4ef6\u5916\u90e8\u5b9e\u4f53\u4ecepolling Jenkins\u63a7\u5236\u5668\u6216\u670d\u52a1\u5668\u7aef\u63d0\u53d6\u673a\u5bc6\uff0c\u9020\u6210\u670d\u52a1\u5668\u7aef\u8bf7\u6c42\u4f2a\u9020\u6216\u62d2\u7edd\u670d\u52a1\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://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2339",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-39163",
  "openTime": "2021-06-03",
  "patchDescription": "CloudBees Jenkins\uff08Hudson Labs\uff09\u662f\u7f8e\u56fdCloudBees\u516c\u53f8\u7684\u4e00\u5957\u57fa\u4e8eJava\u5f00\u53d1\u7684\u6301\u7eed\u96c6\u6210\u5de5\u5177\u3002\u8be5\u4ea7\u54c1\u4e3b\u8981\u7528\u4e8e\u76d1\u63a7\u6301\u7eed\u7684\u8f6f\u4ef6\u7248\u672c\u53d1\u5e03/\u6d4b\u8bd5\u9879\u76ee\u548c\u4e00\u4e9b\u5b9a\u65f6\u6267\u884c\u7684\u4efb\u52a1\u3002\r\n\r\nJenkins Filesystem Trigger Plugin 0.40\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728XML\u5916\u90e8\u5b9e\u4f53\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u914d\u7f6eXML\u89e3\u6790\u5668\u4ee5\u9632\u6b62XML\u5916\u90e8\u5b9e\u4f53\uff08XXE\uff09\u653b\u51fb\u3002\u5177\u6709Job/Configure\u6743\u9650\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u501f\u52a9\u7279\u5236\u7684XML\u6587\u4ef6\u5916\u90e8\u5b9e\u4f53\u4ecepolling Jenkins\u63a7\u5236\u5668\u6216\u670d\u52a1\u5668\u7aef\u63d0\u53d6\u673a\u5bc6\uff0c\u9020\u6210\u670d\u52a1\u5668\u7aef\u8bf7\u6c42\u4f2a\u9020\u6216\u62d2\u7edd\u670d\u52a1\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 Filesystem Trigger Plugin XML\u5916\u90e8\u5b9e\u4f53\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "CloudBees Jenkins Filesystem Trigger Plugin \u003c=0.40"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-21657",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-26",
  "title": "CloudBees Jenkins Filesystem Trigger Plugin XML\u5916\u90e8\u5b9e\u4f53\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2021-21657 (GCVE-0-2021-21657)

Vulnerability from cvelistv5 – Published: 2021-05-25 14:10 – Updated: 2024-08-03 18:23

Summary

Jenkins Filesystem Trigger Plugin 0.40 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

Severity

No CVSS data available.

Assigner

jenkins mitre root

References

2 references

URL	Tags
https://www.jenkins.io/security/advisory/2021-05-…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2021/05/25/3	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
Jenkins project	Jenkins Filesystem Trigger Plugin	Affected: unspecified , ≤ 0.40 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:23:27.525Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2339"
          },
          {
            "name": "[oss-security] 20210525 Multiple vulnerabilities in Jenkins plugins",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/05/25/3"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Jenkins Filesystem Trigger Plugin",
          "vendor": "Jenkins project",
          "versions": [
            {
              "lessThanOrEqual": "0.40",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Jenkins Filesystem Trigger Plugin 0.40 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-24T15:51:23.187Z",
        "orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
        "shortName": "jenkins"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2339"
        },
        {
          "name": "[oss-security] 20210525 Multiple vulnerabilities in Jenkins plugins",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/05/25/3"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "jenkinsci-cert@googlegroups.com",
          "ID": "CVE-2021-21657",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Jenkins Filesystem Trigger Plugin",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_value": "0.40"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Jenkins project"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Jenkins Filesystem Trigger Plugin 0.40 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-611: Improper Restriction of XML External Entity Reference"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2339",
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              "url": "https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2339"
            },
            {
              "name": "[oss-security] 20210525 Multiple vulnerabilities in Jenkins plugins",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/05/25/3"
            }
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        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
    "assignerShortName": "jenkins",
    "cveId": "CVE-2021-21657",
    "datePublished": "2021-05-25T14:10:14.000Z",
    "dateReserved": "2021-01-04T00:00:00.000Z",
    "dateUpdated": "2024-08-03T18:23:27.525Z",
    "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.

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.