CVE-2023-27314 : Exploit Details and Defense Strategies

This CVE-2023-27314 was published by NetApp on October 12, 2023. It involves a Denial of Service vulnerability in ONTAP 9, affecting specific versions of the product.

Understanding CVE-2023-27314

This vulnerability poses a risk to systems running ONTAP 9 versions prior to 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2, and 9.13.1. It could potentially allow a remote unauthenticated attacker to crash the HTTP service.

What is CVE-2023-27314?

The CVE-2023-27314 involves a Denial of Service vulnerability in ONTAP 9, where certain versions are susceptible to attacks by remote unauthenticated threat actors who can trigger a crash in the HTTP service.

The Impact of CVE-2023-27314

The impact of this vulnerability is considered high, with a CVSS base score of 7.5. It has the potential to disrupt the availability of affected systems without requiring any privileges for exploitation. The confidentiality and integrity of the system are not directly impacted by this vulnerability.

Technical Details of CVE-2023-27314

This section provides specific technical details about the vulnerability, including how it can be exploited and the systems and versions that are affected.

Vulnerability Description

The vulnerability in question allows a remote, unauthenticated attacker to cause a crash of the HTTP service on systems running ONTAP 9 versions prior to 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2, and 9.13.1.

Affected Systems and Versions

The vulnerability impacts ONTAP 9 versions earlier than 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2, and 9.13.1. Systems utilizing these versions are at risk of exploitation.

Exploitation Mechanism

Exploiting this vulnerability does not require any specific privileges or user interaction. A remote attacker can exploit the flaw over the network, leading to a denial of service condition impacting the availability of the HTTP service.

Mitigation and Prevention

To address CVE-2023-27314 and mitigate the associated risks, users should take immediate steps and implement long-term security practices.

Immediate Steps to Take

Update ONTAP 9 to versions 9.8P19, 9.9.1P16, 9.10.1P12, 9.11.1P8, 9.12.1P2, or 9.13.1 to mitigate the vulnerability.
Monitor system logs for any unusual activity that could indicate a potential exploit.

Long-Term Security Practices

Regularly update and patch ONTAP 9 to address any security vulnerabilities promptly.
Implement network segmentation and access controls to limit exposure to potential threats.

Patching and Updates

Refer to the NetApp advisory NTAP-20231009-0001 for detailed instructions on patching and updating ONTAP 9 to secure the system against this Denial of Service vulnerability.