EUVD-2024-49975

Comprehensive Technical Analysis of EUVD-2024-49975

1. Vulnerability Assessment and Severity Evaluation

The vulnerability in the Wp Social Login and Register Social Counter plugin for WordPress, identified as EUVD-2024-49975 (CVE-2024-9501), is classified as an authentication bypass issue. This vulnerability allows unauthenticated attackers to log in as any existing user on the site, including administrators, if they have access to the email and the user does not have an already-existing account for the service returning the token.

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The high base score indicates that this vulnerability is critical due to its potential for significant impact on confidentiality, integrity, and availability. The attack vector is network-based (AV:N), requires low complexity (AC:L), no privileges (PR:N), and no user interaction (UI:N). The scope is unchanged (S:U), but the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Email Access: An attacker with access to the email address associated with a user account can exploit this vulnerability.
2. Social Login Token: The attacker can use the social login token to bypass authentication mechanisms.

Exploitation Methods:

1. Token Manipulation: The attacker can manipulate the social login token to impersonate any user, including administrators.
2. Email Spoofing: The attacker can spoof the email address to gain access to the social login token.

3. Affected Systems and Software Versions

Affected Systems:

• WordPress sites using the Wp Social Login and Register Social Counter plugin.

Affected Software Versions:

• All versions up to and including 3.0.7.

4. Recommended Mitigation Strategies

1. Immediate Patching: Upgrade the Wp Social Login and Register Social Counter plugin to a version higher than 3.0.7.
2. Email Security: Implement strong email security measures to prevent unauthorized access to user emails.
3. Token Verification: Enhance the verification process for social login tokens to ensure they are valid and associated with the correct user.
4. Monitoring and Logging: Enable comprehensive logging and monitoring to detect any suspicious login attempts.
5. User Education: Educate users about the importance of securing their email accounts and recognizing phishing attempts.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using WordPress with the affected plugin. The potential for unauthorized access to administrative accounts can lead to data breaches, unauthorized modifications, and service disruptions. This underscores the need for robust cybersecurity practices and timely patch management.

6. Technical Details for Security Professionals

Vulnerability Details:

• Insufficient Verification: The vulnerability arises from insufficient verification of the user being returned by the social login token.
• Exploitation: An attacker can exploit this by manipulating the token to impersonate any user, including administrators.

Code References:

• Admin Create User File: The vulnerability is present in the admin-create-user.php file, specifically at line 205 in version 3.0.6.
  • Reference Link
• Changeset: The changeset 3173675 provides details on the code changes related to this vulnerability.
  • Changeset Link

Additional References:

• Wordfence Threat Intelligence: Detailed analysis and threat intelligence provided by Wordfence.
  • Wordfence Link

Conclusion: This vulnerability highlights the importance of thorough code reviews, robust authentication mechanisms, and timely updates. Security professionals should prioritize patching affected systems and implementing additional security measures to mitigate the risk associated with this critical vulnerability.