漏洞信息
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Vulnerability Title
Hidden backdoor authentication mechanism in multiple versions of Tenda firmware allows admin access to web management interface
Vulnerability Description
The web server binary /bin/httpd contains a hidden backdoor authentication mechanism in the login() function at 004c88b8. - The function contains a normal authentication path using MD5/hash-based password verification (prod_encode64/PasswordToMd5/check_rand_key). - After normal authentication fails, it calls GetValue("sys.rzadmin.password") to read a backdoor password from the device configuration. - It performs a direct strcmp() comparison (plaintext, not hashed) between the config value and the user-supplied password. A successful match grants role=2 (admin-level access) and creates a valid session. The rzadmin username is never checked — any username works with the backdoor
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Tenda FH1201 处理逻辑错误漏洞
Vulnerability Description
Tenda fh1201是中国Tenda公司的一款无线路由器。 Tenda FH1201存在处理逻辑错误漏洞,该漏洞源于/bin/httpd中的login()函数包含隐藏的后门身份验证机制,使用户提供密码与设备配置中的后门密码进行明文比较,成功匹配后授予管理员级别访问权限。以下产品及版本受到影响:US_AC6V2.0RTL_V15.03.06.51_multi_T版本、US_AC5V1.0RTL_V15.03.06.48_multi_TDE01版本、US_AC10V1.0re_V15.03.06.46_m
CVSS Information
N/A
Vulnerability Type
N/A