{"id":59725,"date":"2025-07-29T08:52:17","date_gmt":"2025-07-29T08:52:17","guid":{"rendered":""},"modified":"2025-09-03T19:03:38","modified_gmt":"2025-09-04T01:03:38","slug":"cve-2025-8019-critical-buffer-overflow-vulnerability-in-shenzhen-libituo-technology-lbt-t300-t310","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-8019-critical-buffer-overflow-vulnerability-in-shenzhen-libituo-technology-lbt-t300-t310\/","title":{"rendered":"CVE-2025-8019: Critical Buffer Overflow Vulnerability in Shenzhen Libituo Technology LBT-T300-T310<\/strong>"},"content":{"rendered":"

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

A critical security vulnerability, identified as CVE-2025-8019, has recently been discovered in Shenzhen Libituo Technology LBT-T300-T310 version 2.2.3.6. This vulnerability can be exploited remotely by an attacker, potentially leading to a system compromise or data leakage. It is a serious flaw that requires immediate attention due to its high criticality and potential impact on the affected systems<\/a>.
\nThe vulnerability lies in the function sub_40B6F0 of the file<\/a> at\/appy.cgi. The manipulation of the argument wan_proto can result in buffer overflow<\/a>, making the system susceptible to further malicious attacks. It’s important for organizations using these systems to understand the potential risks<\/a> and take immediate action for remediation.<\/p>\n

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

CVE ID: CVE-2025-8019
\nSeverity: Critical, CVSS Score 8.8
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise<\/a>, potential data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Shenzhen Libituo Technology<\/a> LBT-T300-T310 | 2.2.3.6<\/p>\n

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

This exploit works by manipulating the wan_proto argument in the function sub_40B6F0 of the at\/appy.cgi file, causing buffer overflow<\/a>. Buffer overflow<\/a> is a common type of security exploit where an application writes more data to a fixed-length block of memory (the buffer) than the buffer is designed to hold. This overflow can cause the application to crash or, in the worst-case scenario, allow an attacker to execute arbitrary code<\/a> on the system.<\/p>\n

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

As an illustrative example, an attacker might send a malicious HTTP request similar to the one below to the vulnerable<\/a> endpoint:<\/p>\n

POST \/at\/appy.cgi HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nwan_proto=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...<\/code><\/pre>\n
In the above example, the “wan_proto” argument is filled with an excessively long string of “A” characters, intended to overflow the buffer<\/a> and potentially allow the attacker to execute arbitrary code.
\nPlease note: This is a simplified, conceptual example and may not represent an actual exploit code for this vulnerability<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical security vulnerability, identified as CVE-2025-8019, has recently been discovered in Shenzhen Libituo Technology LBT-T300-T310 version 2.2.3.6. This vulnerability can be exploited remotely by an attacker, potentially leading to a system compromise or data leakage. It is a serious flaw that requires immediate attention due to its high criticality and potential impact on […]<\/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],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59725","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow"],"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