CVE-2023-25104 : Exploit Details and Defense Strategies

This is a detailed overview of CVE-2023-25104, a published vulnerability that affects the Milesight UR32L v32.3.0.5 product. The vulnerability involves multiple buffer overflow issues that can be exploited through specially crafted HTTP requests, potentially leading to arbitrary code execution.

Understanding CVE-2023-25104

This section delves into the specifics of CVE-2023-25104, shedding light on what it is and the impact it can have.

What is CVE-2023-25104?

CVE-2023-25104 is a vulnerability found in the vtysh_ubus binary of Milesight UR32L v32.3.0.5. The issue arises due to the use of an unsafe sprintf pattern, allowing attackers to execute arbitrary code by sending malicious HTTP requests. Notably, the buffer overflow occurs in the set_ike_profile function within the username and password variables.

The Impact of CVE-2023-25104

The impact of CVE-2023-25104 is significant, as attackers with high privileges can exploit this vulnerability to compromise the affected system. The potential for arbitrary code execution poses a serious threat to the confidentiality, integrity, and availability of the targeted system.

Technical Details of CVE-2023-25104

This section provides a deeper dive into the technical aspects of CVE-2023-25104, including vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Milesight UR32L v32.3.0.5 stems from multiple buffer overflow issues in the vtysh_ubus binary, triggered by specially crafted HTTP requests. Attackers can leverage this flaw to execute arbitrary code, posing a severe security risk.

Affected Systems and Versions

The CVE-2023-25104 vulnerability affects the Milesight UR32L product specifically in version v32.3.0.5. Users of this version are urged to take immediate action to mitigate the risk of exploitation.

Exploitation Mechanism

Exploiting CVE-2023-25104 involves sending malicious HTTP requests to the vulnerable system. By manipulating the set_ike_profile function with crafted input, attackers can trigger buffer overflows and potentially gain unauthorized access to the target.

Mitigation and Prevention

Here, we explore the steps that users and organizations can take to mitigate the risks associated with CVE-2023-25104 and prevent potential exploitation.

Immediate Steps to Take

To address CVE-2023-25104, users should apply patches or updates provided by the vendor promptly. Additionally, implementing network segmentation and access controls can help limit the impact of potential attacks targeting this vulnerability.

Long-Term Security Practices

For long-term security, organizations are advised to prioritize secure coding practices, regular security assessments, and employee training on identifying and responding to potential security threats. Maintaining up-to-date software and firmware versions is also crucial in safeguarding against known vulnerabilities.

Patching and Updates

Vendors typically release patches or updates to address identified vulnerabilities. Users of the affected Milesight UR32L v32.3.0.5 version should ensure they apply any available patches to mitigate the risk posed by CVE-2023-25104. Regularly monitoring for and applying updates can help prevent exploitation of known security flaws.