Source: security@huntr.dev
Cross-Site Request Forgery (CSRF) in GitHub repository froxlor/froxlor prior to 2.0.0-beta1.
Froxlor, a web hosting control panel, is vulnerable to Cross-Site Request Forgery (CSRF), allowing attackers to perform unauthorized actions on behalf of legitimate users. This vulnerability could lead to account compromise, data manipulation, and system takeover if exploited. Successful exploitation requires tricking a logged-in user into clicking a malicious link or visiting a compromised website.
Step 1: Victim Login: A legitimate user logs into their Froxlor account.
Step 2: Malicious Payload Creation: An attacker crafts a malicious HTML page or email containing a hidden form or JavaScript code that automatically submits a request to the vulnerable Froxlor application.
Step 3: Payload Delivery: The attacker lures the victim into visiting the malicious page or opening the malicious email. This could involve social engineering techniques.
Step 4: Request Execution: The victim's browser, still authenticated to Froxlor, unknowingly sends the attacker's crafted request to the Froxlor server. The request appears to originate from the victim's browser.
Step 5: Unauthorized Action: The Froxlor server, lacking proper CSRF protection, processes the malicious request, performing the attacker's desired action (e.g., changing the victim's password, creating a new user with administrative privileges, or modifying server configurations).
The root cause of CVE-2022-4867 is the lack of proper CSRF protection mechanisms within the Froxlor application. Specifically, the application fails to validate the origin of requests, allowing an attacker to craft malicious requests that are executed by the victim's browser without their explicit consent. This typically involves the absence of, or improper implementation of, CSRF tokens or other origin verification techniques. The flaw lies in the server's trust of requests originating from any source, leading to unauthorized modification of user settings, data, or even the creation of new administrative accounts.
There is no specific APT or malware directly tied to this CVE at this time. However, the potential for account takeover and system compromise makes this vulnerability attractive to various threat actors. The vulnerability's impact could be leveraged by attackers for initial access, privilege escalation, or data exfiltration. CISA KEV status: Not listed.
Monitor web server logs for suspicious requests, particularly those originating from unexpected sources or with unusual parameters.
Analyze HTTP request headers for missing or invalid CSRF tokens.
Implement a Web Application Firewall (WAF) with CSRF protection rules.
Monitor for changes in user accounts, permissions, or system configurations that occur without explicit user action.
Network traffic analysis looking for unusual POST requests to Froxlor endpoints, especially those lacking proper origin headers.
Upgrade to Froxlor version 2.0.0-beta1 or later.
Implement CSRF protection mechanisms, such as CSRF tokens, in all forms and requests that modify data.
Validate the origin of requests using the Origin and Referer HTTP headers.
Implement a Content Security Policy (CSP) to restrict the sources from which the application can load resources.
Regularly audit the application's code for CSRF vulnerabilities.
Educate users about the risks of clicking on suspicious links or opening attachments from untrusted sources.