{"id":64176,"date":"2025-08-19T20:59:16","date_gmt":"2025-08-19T20:59:16","guid":{"rendered":""},"modified":"2025-10-02T23:37:19","modified_gmt":"2025-10-03T05:37:19","slug":"cve-2025-51452-bypass-login-vulnerability-in-totolink-a7000r-firmware","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-51452-bypass-login-vulnerability-in-totolink-a7000r-firmware\/","title":{"rendered":"CVE-2025-51452: Bypass Login Vulnerability in TOTOLINK A7000R Firmware<\/strong>"},"content":{"rendered":"

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

In the world of cybersecurity, the detection and mitigation of vulnerabilities is vital to maintaining the security integrity of our systems. One such vulnerability, identified as CVE-2025-51452, affects TOTOLINK A7000R firmware 9.1.0u.6115_B20201022. This vulnerability can allow an attacker to bypass<\/a> the login process and potentially compromise the system or leak data. This vulnerability has a significant impact on all users of the affected firmware, as it can lead to unauthorized access and breach of sensitive data<\/a>.<\/p>\n

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

CVE ID: CVE-2025-51452
\nSeverity: Critical, CVSS Score 9.8
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Unauthorized access<\/a>, potential system compromise, and data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

TOTOLINK A7000R Firmware | 9.1.0u.6115_B20201022<\/p>\n

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

The vulnerability lies within the formLoginAuth.htm of the TOTOLINK<\/a> A7000R firmware. An attacker can exploit this vulnerability by sending a specific request<\/a> to this URL. This request allows the attacker to bypass the login<\/a> process without needing any valid credentials. Once bypassed, the attacker gains unauthorized access<\/a> to the system which can lead to compromise and data leakage.<\/p>\n

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

Below is a conceptual example of how the vulnerability might be exploited. The specific malicious payload details are omitted for ethical reasons.<\/p>\n

POST \/formLoginAuth.htm HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\n{ \"bypass_login\": \"True\" }<\/code><\/pre>\n
In this example, the attacker sends a POST request to the `formLoginAuth.htm` endpoint. The `bypass_login` parameter is set to `True`, which, due to the vulnerability<\/a>, allows the attacker to bypass the login process and gain access to the system.<\/p>\n
Mitigation<\/strong><\/p>\n
Until a vendor patch is available, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to mitigate this vulnerability. These systems can be configured to detect and block the specific request used to exploit this vulnerability<\/a>. Regularly updating your systems and applying patches as soon as they become available<\/a> should be a standard practice in your cybersecurity strategy.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In the world of cybersecurity, the detection and mitigation of vulnerabilities is vital to maintaining the security integrity of our systems. One such vulnerability, identified as CVE-2025-51452, affects TOTOLINK A7000R firmware 9.1.0u.6115_B20201022. This vulnerability can allow an attacker to bypass the login process and potentially compromise the system or leak data. This vulnerability has […]<\/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-64176","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