{"id":22486,"date":"2025-04-13T03:00:30","date_gmt":"2025-04-13T03:00:30","guid":{"rendered":""},"modified":"2025-09-07T11:38:03","modified_gmt":"2025-09-07T17:38:03","slug":"cve-2024-0577-critical-vulnerability-in-totolink-lr1200gb-router-allows-potential-remote-exploitation","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2024-0577-critical-vulnerability-in-totolink-lr1200gb-router-allows-potential-remote-exploitation\/","title":{"rendered":"CVE-2024-0577: Critical Vulnerability in Totolink LR1200GB Router Allows Potential Remote Exploitation<\/strong>"},"content":{"rendered":"

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

A critical vulnerability has been discovered in Totolink’s LR1200GB 9.1.0u.6619_B20230130 routers, having the potential to affect millions of devices worldwide. This vulnerability, identified as CVE-2024-0577, could allow a remote attacker to compromise the system and potentially access sensitive data. Given the severity of this exploit<\/a> and its potential impact, it’s crucial for organizations and individuals using this router model to understand the risk and apply necessary security measures.<\/p>\n

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

CVE ID: CVE-2024-0577
\nSeverity: Critical (CVSS: 8.8)
\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

Totolink LR1200GB<\/a> | 9.1.0u.6619_B20230130<\/p>\n

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

This vulnerability lies in the setLanguageCfg function of the \/cgi-bin\/cstecgi.cgi file<\/a>. The improper handling of the ‘lang’ argument in the function results in a stack-based buffer overflow vulnerability<\/a>. This allows an attacker to manipulate the argument to execute arbitrary code<\/a> or cause a denial of service. Since the attack can be initiated remotely<\/a>, the vulnerability presents an elevated risk.<\/p>\n

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

An attacker could exploit<\/a> this vulnerability by sending a malicious HTTP POST request to the affected router. Below is a theoretical example of how such a request might look:<\/p>\n

POST \/cgi-bin\/cstecgi.cgi HTTP\/1.1\nHost: \nContent-Type: application\/x-www-form-urlencoded\nlang=`python -c 'print \"A\"*6000'`<\/code><\/pre>\n
In this example, the ‘lang’ parameter is filled with a large number of ‘A’ characters. This could cause a stack-based buffer overflow<\/a>, allowing an attacker to execute arbitrary code or cause a denial of service.<\/p>\n
Mitigation<\/strong><\/p>\n
The most effective solution is to apply a vendor-supplied patch as soon as it becomes available. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by protecting against suspicious HTTP requests. This, however, is only a stop-gap measure and may not fully protect against all potential exploits<\/a>. Regularly monitoring network traffic and system logs for suspicious activity can also help detect any attempts to exploit<\/a> this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical vulnerability has been discovered in Totolink’s LR1200GB 9.1.0u.6619_B20230130 routers, having the potential to affect millions of devices worldwide. This vulnerability, identified as CVE-2024-0577, could allow a remote attacker to compromise the system and potentially access sensitive data. Given the severity of this exploit and its potential impact, it’s crucial for organizations and […]<\/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":[86,87],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-22486","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-dos"],"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