| Title | SonicWall Email Security <= 10.0.9.x - Unauthenticated Admin Account Creation |
|---|---|
| Author | pussycat0x |
| Severity | Critical |
| Impact | Attackers can create admin accounts remotely, leading to full control over the email security system. |
| Remediation | Update to the latest version of SonicWall Email Security or apply security patches provided by SonicWall. |
| CVSS Score | 9.8 |
| EPSS Score | 0.90152 |
| CVE ID | CVE-2021-20021 |
| CWE ID | CWE-269 |
| Shodan Query | product:"SonicWALL Email Security" |
| Tags | cve cve2021 sonicwall email-security auth-bypass kev passive vkev vuln |
SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.
GET /login.html HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-20021.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-20021.pcap
N/AN/A