{"id":28162,"date":"2025-04-21T05:29:49","date_gmt":"2025-04-21T05:29:49","guid":{"rendered":""},"modified":"2025-08-08T17:05:12","modified_gmt":"2025-08-08T23:05:12","slug":"cve-2023-50123-exploitable-vulnerability-in-hozard-alarm-system-sms-authentication","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-50123-exploitable-vulnerability-in-hozard-alarm-system-sms-authentication\/","title":{"rendered":"CVE-2023-50123: Exploitable Vulnerability in Hozard Alarm System SMS Authentication<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

In the realm of cybersecurity, one type of vulnerability that raises significant concern is that which can lead to a potential system compromise or data leakage. This is the situation with CVE-2023-50123, a newly discovered vulnerability in the Hozard Alarm system (alarmsystemen) v1.0. This vulnerability is particularly worrisome given the nature of the Hozard Alarm<\/a> system, which is typically relied upon to provide security for homes, businesses and other high-value premises. It’s a stark reminder<\/a> that even the tools we use to protect ourselves can become attack vectors if not properly secured.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2023-50123
\nSeverity: High (CVSS: 8.1)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Hozard Alarm System | v1.0<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability in Hozard Alarm system v1.0 centers on the SMS<\/a> authentication process. The system does not limit the number of attempts to bring it to a disarmed state. This lack of limitation opens the door for an attacker to perform a brute force attack on the SMS authentication<\/a> mechanism. By continually attempting different codes, an attacker can eventually stumble upon the correct code and disarm the system<\/a>. This leaves the premises unprotected and allows the attacker to gain unauthorized access<\/a> without triggering the alarm.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

While this vulnerability does not involve code<\/a> execution, the concept of the attack can be illustrated with pseudocode:<\/p>\n

# Pseudocode for Brute Force Attack on Hozard Alarm System\nfor attempt in range(MAX_ATTEMPTS):\n# Generate a new code to try\ncode = generate_random_code()\n# Send the code as an SMS to the alarm system\nsend_sms(alarm_system_number, code)\n# Check the response to see if the system was disarmed\nif check_response():\nprint(\"System disarmed on attempt #\", attempt)\nbreak<\/code><\/pre>\n
In the above pseudocode, an attacker generates random codes and sends them as SMS messages to the alarm<\/a> system. This process continues until the correct code is found and the system<\/a> is disarmed.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
The most effective way to mitigate this vulnerability<\/a> is by applying the vendor’s patch. The patch addresses this issue by implementing a limit on the number of attempts that can be made to disarm the system via<\/a> SMS.
\nIn the absence of a patch, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. These tools can detect and block suspicious activities, such as an unusually high number of SMS messages being sent to the alarm system, thereby preventing a brute force<\/a> attack.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In the realm of cybersecurity, one type of vulnerability that raises significant concern is that which can lead to a potential system compromise or data leakage. This is the situation with CVE-2023-50123, a newly discovered vulnerability in the Hozard Alarm system (alarmsystemen) v1.0. This vulnerability is particularly worrisome given the nature of the Hozard […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-28162","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t