CVE-2025-67504

Comprehensive Technical Analysis of CVE-2025-67504

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-67504

Description: WBCE CMS, a content management system, has a vulnerability in versions 1.6.4 and below. The GenerateRandomPassword() function uses PHP's rand() to create passwords, which is not cryptographically secure. This can lead to predictable password sequences, making them susceptible to brute-force attacks.

CVSS Score: 9.1

Severity Evaluation: The CVSS score of 9.1 indicates a critical vulnerability. The use of a non-cryptographically secure random number generator for password creation poses a significant risk, as it can lead to user account compromise and privilege escalation.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Brute-Force Attacks: Attackers can exploit the predictability of passwords generated by rand() to perform brute-force attacks, gaining unauthorized access to user accounts.
2. Password Reset Exploitation: If the vulnerable function is used for password resets, attackers can predict the new passwords, leading to account takeovers.
3. Privilege Escalation: Once an attacker gains access to a user account, they may exploit other vulnerabilities to escalate privileges within the system.

Exploitation Methods:

1. Automated Scripts: Attackers can use automated scripts to generate potential passwords based on the predictable patterns of rand().
2. Dictionary Attacks: Combining known patterns with dictionary attacks can expedite the process of guessing passwords.
3. Phishing Campaigns: Attackers may use phishing to trick users into resetting their passwords, which can then be predicted and exploited.

3. Affected Systems and Software Versions

Affected Software:

• WBCE CMS versions 1.6.4 and below.

Unaffected Software:

• WBCE CMS version 1.6.5 and above.

Systems:

• Any system running the affected versions of WBCE CMS, including web servers, cloud-based deployments, and on-premises installations.

4. Recommended Mitigation Strategies

Immediate Actions:

1. Upgrade to Version 1.6.5: Immediately upgrade to WBCE CMS version 1.6.5 or later, which includes the fix for this vulnerability.
2. Password Reset: Force a password reset for all users, ensuring that new passwords are generated using a cryptographically secure method.
3. Monitoring: Implement monitoring for unusual login attempts and failed login attempts to detect potential brute-force attacks.

Long-Term Strategies:

1. Secure Password Generation: Ensure that all password generation functions use cryptographically secure methods, such as random_bytes() or openssl_random_pseudo_bytes().
2. Regular Audits: Conduct regular security audits to identify and mitigate similar vulnerabilities.
3. User Education: Educate users about the importance of strong, unique passwords and the risks associated with predictable passwords.

5. Impact on Cybersecurity Landscape

Immediate Impact:

• Organizations using WBCE CMS versions 1.6.4 and below are at high risk of account compromise and privilege escalation.
• The vulnerability can lead to data breaches, unauthorized access, and potential financial losses.

Long-Term Impact:

• Increased awareness of the importance of using cryptographically secure random number generators for password creation.
• Potential for similar vulnerabilities to be discovered in other systems, highlighting the need for proactive security measures.

6. Technical Details for Security Professionals

Vulnerability Details:

• The GenerateRandomPassword() function in WBCE CMS uses PHP's rand() function, which is not suitable for cryptographic purposes due to its predictability.
• The vulnerability allows attackers to predict password sequences, making brute-force attacks feasible.

Code Example:

function GenerateRandomPassword() {
    $password = '';
    for ($i = 0; $i < 10; $i++) {
        $password .= chr(rand(33, 126));
    }
    return $password;
}

Fix Implementation:

• Replace rand() with a cryptographically secure function like random_bytes().

function GenerateRandomPassword() {
    $password = '';
    for ($i = 0; $i < 10; $i++) {
        $password .= chr(random_int(33, 126));
    }
    return $password;
}

References:

• CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
• WBCE CMS GitHub Commit
• WBCE CMS Release 1.6.5
• WBCE CMS Security Advisory

By addressing this vulnerability promptly and implementing robust security practices, organizations can significantly reduce the risk of account compromise and ensure the integrity of their systems.