CVE-2023-1101 Explained : Impact and Mitigation
Learn about CVE-2023-1101, an MFA vulnerability in SonicWall SSLVPN, allowing authenticated attackers to bypass restrictions and access sensitive information. Published by SonicWall on March 2, 2023.
This CVE, assigned by SonicWall, was published on March 2, 2023. It involves an improper restriction of excessive MFA attempts vulnerability in SonicOS SSLVPN, which could allow an authenticated attacker to utilize excessive MFA codes.
Understanding CVE-2023-1101
This section delves into the details of CVE-2023-1101, including its impact, technical aspects, and mitigation strategies.
What is CVE-2023-1101?
CVE-2023-1101 relates to a vulnerability in SonicOS SSLVPN that could be exploited by an authenticated attacker to circumvent restrictions on the number of MFA codes attempted.
The Impact of CVE-2023-1101
The impact of this vulnerability is significant as it could potentially lead to unauthorized access to systems and sensitive information by bypassing multi-factor authentication safeguards.
Technical Details of CVE-2023-1101
Understanding the technical specifics of CVE-2023-1101 is crucial for assessing the potential risks and formulating effective mitigation measures.
Vulnerability Description
The vulnerability in SonicOS SSLVPN results from an improper restriction on the number of MFA codes that can be attempted, allowing attackers to carry out excessive MFA code attempts.
Affected Systems and Versions
The following versions of SonicOS are affected by CVE-2023-1101:
- SonicOS 6.5.4.11-97n and earlier
- SonicOS NSv 6.5.4.4-44v-21-1551 and earlier
- SonicOS NSsp 7.0.1-5083 and earlier
- SonicOS 7.0.1-5095 and earlier
Exploitation Mechanism
Exploiting this vulnerability involves an authenticated attacker leveraging the ability to enter a large number of MFA codes, potentially leading to unauthorized access.
Mitigation and Prevention
Taking swift and effective action to mitigate the risks posed by CVE-2023-1101 is essential for maintaining the security of affected systems.
Immediate Steps to Take
Immediate actions include monitoring MFA attempts, implementing additional security measures, and restricting access to vulnerable systems.
Long-Term Security Practices
Long-term security practices involve regular security assessments, training on secure authentication practices, and staying informed about security updates.
Patching and Updates
SonicWall users should apply the latest patches and updates provided by the vendor to address the CVE-2023-1101 vulnerability and enhance the security of their systems.