CVE-2023-5035 : What You Need to Know

This CVE-2023-5035 affects the PT-G503 Series firmware versions prior to v5.2, where the Secure attribute for sensitive cookies in HTTPS sessions is not set, potentially exposing user session data to unauthorized access and manipulation.

Understanding CVE-2023-5035

This section dives into the details of the CVE-2023-5035 vulnerability, its impact, technical description, affected systems, exploitation mechanism, and mitigation strategies.

What is CVE-2023-5035?

The vulnerability identified in the PT-G503 Series firmware versions prior to v5.2 lies in the absence of the Secure attribute for sensitive cookies in HTTPS sessions, leading to potential exposure of user session data to unauthorized access.

The Impact of CVE-2023-5035

With a CVSS v3.1 base score of 3.1 (Low severity), this vulnerability can result in session sidejacking (CAPEC-102), allowing attackers to access and manipulate user session data.

Technical Details of CVE-2023-5035

In this section, we delve into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The absence of the Secure attribute for sensitive cookies in HTTPS sessions can result in the transmission of cookies in plaintext over an HTTP session, posing security risks.

Affected Systems and Versions

The PT-G503 Series firmware versions prior to v5.2 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability to intercept and manipulate user session data by not setting the Secure attribute for cookies in HTTPS sessions.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the CVE-2023-5035 vulnerability and prevent potential risks.

Immediate Steps to Take

Users are advised to carefully utilize HTTP when necessary and consider replacing HTTP with HTTPS for web services. Additionally, following mitigation measures such as reducing network exposure, employing firewalls, and secure remote access methods like VPNs are recommended.

Long-Term Security Practices

Implementing robust network security measures, maintaining up-to-date VPNs, and ensuring device security are essential for long-term security against vulnerabilities like CVE-2023-5035.

Patching and Updates

To address the vulnerability, it is crucial to update the PT-G503 Series firmware to version 5.2 or higher, where the Secure attribute for cookies in HTTPS sessions is properly configured to enhance security.