{"id":33268,"date":"2025-04-28T23:51:55","date_gmt":"2025-04-28T23:51:55","guid":{"rendered":""},"modified":"2025-09-29T02:50:24","modified_gmt":"2025-09-29T08:50:24","slug":"cve-2025-28038-critical-pre-auth-remote-command-execution-vulnerability-in-totolink-ex1200t","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-28038-critical-pre-auth-remote-command-execution-vulnerability-in-totolink-ex1200t\/","title":{"rendered":"CVE-2025-28038: Critical Pre-Auth Remote Command Execution Vulnerability in TOTOLINK EX1200T<\/strong>"},"content":{"rendered":"

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

The CVE-2025-28038 vulnerability is a significant cybersecurity concern, primarily affecting users of the TOTOLINK EX1200T router. This vulnerability lies within the setWebWlanIdx function and allows for pre-auth remote command execution through the webWlanIdx parameter. Given its nature, attackers can exploit<\/a> this weakness without any prior authentication, making it a significant threat to the confidentiality, integrity, and availability of the system. The severity of this vulnerability<\/a> is underscored by its CVSS score of 9.8, indicating that it poses a severe risk to affected systems.<\/p>\n

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

CVE ID: CVE-2025-28038
\nSeverity: Critical, CVSS score 9.8
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Unauthorized remote command execution leading to system<\/a> compromise or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

TOTOLINK EX1200T<\/a> | V4.1.2cu.5232_B20210713<\/p>\n

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

The vulnerability resides in the setWebWlanIdx function in the TOTOLINK<\/a> EX1200T router. This function allows an attacker to leverage the webWlanIdx parameter to execute pre-authentication remote<\/a> commands. An attacker can exploit this vulnerability by sending a specially crafted request to the vulnerable router, resulting in the execution of arbitrary commands<\/a> with root privileges.<\/p>\n

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

Here is a
\nconceptual<\/strong>
\n example of how the vulnerability might be exploited<\/a>:<\/p>\n

POST \/cgi-bin\/setWebWlanIdx HTTP\/1.1\nHost: target_router_ip\nContent-Type: application\/x-www-form-urlencoded\nwebWlanIdx=`malicious_command`<\/code><\/pre>\n
In this conceptual example, the `malicious_command` is the arbitrary command<\/a> that the attacker wishes to run on the router. The exploit works by sending this specially crafted POST request<\/a> to the target router, leveraging the webWlanIdx parameter.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Users are advised to apply the vendor patch from TOTOLINK as soon as possible to fix this vulnerability<\/a>. In cases where immediate patch application is not feasible, users may adopt Web Application Firewall (WAF) or Intrusion Detection Systems (IDS) as a temporary mitigation measure to prevent the possible exploitation of this vulnerability<\/a>. However, these measures are not permanent solutions, and applying the patch remains essential to ensure network security<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The CVE-2025-28038 vulnerability is a significant cybersecurity concern, primarily affecting users of the TOTOLINK EX1200T router. This vulnerability lies within the setWebWlanIdx function and allows for pre-auth remote command execution through the webWlanIdx parameter. Given its nature, attackers can exploit this weakness without any prior authentication, making it a significant threat to the confidentiality, […]<\/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":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-33268","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"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