CVE-2023-21070 : What You Need to Know

This CVE record was published on March 24, 2023, by Google Android, highlighting a vulnerability in the Android system that could potentially lead to a local escalation of privilege. The vulnerability was identified in the

add_roam_cache_list

function of

wl_roam.c

due to a missing bounds check, allowing for an out-of-bounds write operation.

Understanding CVE-2023-21070

This section dives deeper into the nature of CVE-2023-21070, its impact, technical details, and mitigation strategies to address the issue effectively.

What is CVE-2023-21070?

CVE-2023-21070 refers to a potential out-of-bounds write vulnerability in the

add_roam_cache_list

function of

wl_roam.c

in the Android system, posing a risk of local escalation of privilege. Exploiting this issue could grant an attacker with System execution privileges, without the need for user interaction.

The Impact of CVE-2023-21070

The impact of CVE-2023-21070 is significant as it could allow a malicious actor to gain elevated privileges on the affected Android system. This could potentially lead to unauthorized access to sensitive data, execution of arbitrary code, or other malicious activities, compromising the security and integrity of the system.

Technical Details of CVE-2023-21070

Understanding the technical aspects of CVE-2023-21070 can help security professionals and system administrators take appropriate actions to mitigate the vulnerability effectively.

Vulnerability Description

The vulnerability arises from a missing bounds check in the

add_roam_cache_list

function of

wl_roam.c

within the Android system, leading to an out-of-bounds write operation. This flaw can be exploited by an attacker to escalate privileges locally on the affected system.

Affected Systems and Versions

The vulnerability impacts the Android system, specifically the Android kernel. Systems running the affected versions are vulnerable to this exploitation, highlighting the importance of timely patching and updates to prevent potential security breaches.

Exploitation Mechanism

By leveraging the out-of-bounds write vulnerability in the

add_roam_cache_list

function, an attacker could execute malicious code or commands with elevated privileges on the Android system, potentially compromising its security and confidentiality.

Mitigation and Prevention

Taking immediate steps to address CVE-2023-21070 and implementing long-term security practices can safeguard systems from potential threats and unauthorized access.

Immediate Steps to Take

To mitigate the risks associated with CVE-2023-21070, users are advised to apply security patches and updates provided by Google Android promptly. Additionally, implementing security best practices and access controls can help prevent unauthorized privilege escalation attempts.

Long-Term Security Practices

Establishing robust security protocols, conducting regular security assessments, and staying informed about potential vulnerabilities can enhance the overall security posture of systems. By prioritizing security measures and proactive monitoring, organizations can reduce the likelihood of successful cyber attacks.

Patching and Updates

Regularly monitoring for security updates and patches released by Google Android is crucial to address vulnerabilities like CVE-2023-21070. Applying patches promptly and ensuring systems are up to date can help mitigate risks and fortify the resilience of the Android environment against potential threats.