CVE-2019-10054 : Exploit Details and Defense Strategies

Suricata version 4.1.3 has a vulnerability that allows unauthorized memory access, potentially leading to program crashes.

Understanding CVE-2019-10054

What is CVE-2019-10054?

An issue in Suricata 4.1.3 allows unauthorized memory access due to a lack of validation for reply.data length, leading to crashes.

The Impact of CVE-2019-10054

The vulnerability can result in a program crash within the nfs/nfs3.rs file, potentially disrupting system operations.

Technical Details of CVE-2019-10054

Vulnerability Description

The function process_reply_record_v3 in Suricata 4.1.3 lacks validation for reply.data length, enabling unauthorized memory access.

Affected Systems and Versions

Product: Suricata
Vendor: N/A
Version: 4.1.3

Exploitation Mechanism

The vulnerability allows attackers to exploit the lack of validation for reply.data length, leading to unauthorized memory access and potential crashes.

Mitigation and Prevention

Immediate Steps to Take

Update Suricata to version 4.1.4 or later to mitigate the vulnerability.
Monitor vendor security advisories for patches and updates.

Long-Term Security Practices

Regularly update and patch Suricata and other software to address security vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.
Conduct regular security assessments and audits to identify and address vulnerabilities.

Patching and Updates

Apply patches and updates provided by Suricata promptly to address the vulnerability and enhance system security.