Headline
SOUND4 IMPACT/FIRST/PULSE/Eco 2.x Directory Traversal File Write Exploit
The application suffers from an unauthenticated directory traversal file write vulnerability. Input passed through the ‘filename’ POST parameter called by the ‘upgrade.php’ script is not properly verified before being used to upload .upgbox Firmware files. This can be exploited to write to arbitrary locations on the system via directory traversal attacks.
Title: SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x Directory Traversal File Write Exploit
Advisory ID: ZSL-2022-5730
Type: Local/Remote
Impact: Exposure of System Information, Exposure of Sensitive Information
Risk: (5/5)
Release Date: 14.12.2022
Summary
The SOUND4 IMPACT introduces an innovative process - mono and stereo parts of the signal are processed separately to obtain perfect consistency in terms of both sound and level. Therefore, in moving reception, when the FM receiver switches from stereo to mono and back to stereo, the sound variations and changes in level are reduced by over 90%. In the SOUND4 IMPACT processing chain, the stereo expander can be used substantially without any limitations.
With its advanced functionalities and impressive versatility, SOUND4 PULSE gives clients the ultimate price - performance ratio, providing much more than just a processor. Flexible and powerful, it ensures perfect sound quality and full compatibility with radio broadcasting standards and can be used simultaneously for FM and HD, DAB, DRM or streaming.
SOUND4 FIRST provides all the most important functionalities you need in an FM/HD processor and sets the bar high both in terms of performance and affordability. Designed to deliver a sound of uncompromising quality, this tool gives you 2-band processing, a digital stereo generator and an IMPACT Clipper
Description
The application suffers from an unauthenticated directory traversal file write vulnerability. Input passed through the ‘filename’ POST parameter called by the ‘upgrade.php’ script is not properly verified before being used to upload .upgbox Firmware files. This can be exploited to write to arbitrary locations on the system via directory traversal attacks.
Vendor
SOUND4 Ltd. - https://www.sound4.com | https://www.sound4.biz
Affected Version
FM/HD Radio Processing:
Impact/Pulse/First (Version 2: 1.1/2.15)
Impact/Pulse/First (Version 1: 2.1/1.69)
Impact/Pulse Eco 1.16
Voice Processing:
BigVoice4 1.2
BigVoice2 1.30
Web-Audio Streaming:
Stream 1.1/2.4.29
Watermarking:
WM2 (Kantar Media) 1.11
Tested On
Apache/2.4.25 (Unix)
OpenSSL/1.0.2k
PHP/7.1.1
GNU/Linux 5.10.43 (armv7l)
GNU/Linux 4.9.228 (armv7l)
Vendor Status
[26.09.2022] Vulnerability discovered.
[30.09.2022] Vendor contacted.
[13.12.2022] No response from the vendor.
[14.12.2022] Public security advisory released.
PoC
sound4_traversal.txt
Credits
Vulnerability discovered by Gjoko Krstic - <[email protected]>
References
N/A
Changelog
[14.12.2022] - Initial release
Contact
Zero Science Lab
Web: https://www.zeroscience.mk
e-mail: [email protected]