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How the CVE Works:
The vulnerability exists in the Drupal Access code module, which fails to implement a mechanism to limit the number of authentication attempts. Without rate limiting, an attacker can perform an unlimited number of login requests against user accounts. This allows for brute-force attacks, where automated tools systematically try vast numbers of password combinations until the correct one is found. The module does not enforce a delay, lock the account after repeated failures, or require CAPTCHA, leaving user credentials exposed to automated guessing.
Platform: Drupal Access code module
Version: < 2.0.5
Vulnerability : Brute Force
Severity: Moderate
date: 2024-10-30
Prediction: 2024-11-13
What Undercode Say:
hydra -l admin -P /usr/share/wordlists/rockyou.txt http-post-form://target/drupal/user/login:name=^USER^&pass=^PASS^&form_id=user_login_form:F=Sorry
// Simulates unchecked login attempts.
for ($i = 0; $i < 10000; $i++) {
$login_result = drupal_authenticate($username, $password_guess[$i]);
}
How Exploit:
An attacker uses automated scripts to repeatedly submit login requests to the Drupal user login form. Tools like Hydra or custom Python scripts are used to cycle through a list of common passwords for a known username without being blocked.
Protection from this CVE:
Upgrade to version 2.0.5. Implement rate limiting. Use strong passwords. Enable account lockouts.
Impact:
Account compromise. Unauthorized access. Administrative privilege escalation.
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Sources:
Reported By: github.com
Extra Source Hub:
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