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CVE-2023-21433: High Vulnerability in Samsung Galaxy Store

A high-severity improper access control vulnerability in Samsung's Galaxy Store allows local attackers to install applications. Immediate patching is required to mitigate risks.

HIGHCVSS 7.8 · Published February 9, 2023

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CVE-2023-21433 is classified as a high-severity vulnerability affecting Samsung's Galaxy Store prior to version 4.5.49.8. This vulnerability allows local attackers to exploit improper access control mechanisms, potentially leading to unauthorized installation of applications from the Galaxy Store. The CVSS score for this vulnerability is 7.8, indicating a significant risk that organizations must address.

The risk to organizations includes potential unauthorized application installations, which could compromise device security and user data. Given the nature of the vulnerability, it is crucial for organizations using affected versions of the Galaxy Store to prioritize remediation efforts. The urgency for defenders is high, and organizations should act swiftly to mitigate any associated risks.

As of the latest updates, there are no known exploits in the wild, but the improper access control nature of this vulnerability poses a significant risk. Organizations should remain vigilant and monitor for any indications of exploitation while preparing their patching strategies.

Urgency for patching is critical, as the vulnerability allows local attackers to manipulate application installations, potentially leading to further security breaches.

Vulnerability Details

The official description of CVE-2023-21433 states that it involves an improper access control vulnerability in the Galaxy Store, which permits local attackers to install applications from the store without the necessary permissions. The vulnerability is categorized under CWE-285 and CWE-276.

The CVSS score is 7.8, with a high severity classification. The attack vector is local, and the attack complexity is low, requiring minimal privileges for exploitation. The potential impacts are significant, affecting confidentiality, integrity, and availability.

Published on February 9, 2023, this vulnerability affects all versions of Galaxy Store prior to version 4.5.49.8. Organizations should ensure they are using the latest version to protect against this vulnerability.

Technical Analysis

The root cause of this vulnerability lies in the failure to implement proper access controls within the Galaxy Store application. This oversight allows local attackers, who have physical access to the device, to install applications without the necessary permissions.

The attack vector is local, meaning that an attacker must be physically present to exploit the vulnerability. The complexity of the attack is low, requiring only low privileges and no user interaction to execute the attack successfully.

The impacts of this vulnerability are serious. It can lead to high confidentiality, integrity, and availability impacts, potentially allowing attackers to install malicious applications that may compromise user data or control of the device.

Risk & Impact Analysis

The real-world deployment risk posed by this vulnerability is significant. Organizations utilizing affected versions of Galaxy Store may find themselves vulnerable to local attacks that could lead to unauthorized application installations. This could result in data breaches, loss of user trust, and potential legal ramifications.

Given the high CVSS score, organizations should treat this vulnerability as a priority. The blast radius is potentially wide, affecting all users of the Galaxy Store on affected devices. Organizations must act quickly to apply patches and mitigate the risks associated with this vulnerability.

The urgency assessment based on the CVSS score indicates that organizations should prioritize patching immediately. Failure to do so could result in significant security risks and potential exploitation.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The vulnerability affects all versions of Galaxy Store prior to version 4.5.49.8. Organizations should ensure they are using a fixed version to prevent exploitation.

Mitigation & Remediation

Samsung has released a patch for this vulnerability. Organizations should upgrade to Galaxy Store version 4.5.49.8 or later to mitigate the risk. If immediate patching is not possible, organizations should implement configuration hardening measures and restrict local access to devices where possible.

Monitoring for unauthorized application installations and ensuring regular updates of security mechanisms are essential for ongoing protection.

Detection Guidance

Organizations should monitor logs for any unauthorized application installations or access attempts. Behavioral anomalies, such as unexpected application behavior or crashes, could also indicate exploitation attempts.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2023-21433 highlights the necessity for organizations to maintain robust access control measures. This vulnerability represents a broader trend of improper access controls in mobile applications, which can lead to significant security breaches.

Security teams are advised to conduct regular assessments and audits of application security policies to prevent similar vulnerabilities. Additionally, the importance of swift remediation cannot be overstated, as delays can lead to increased exposure and risk.

Organizations should consider engaging in penetration testing to identify and address similar weaknesses proactively.

In conclusion, CVE-2023-21433 serves as a critical reminder of the importance of maintaining stringent security practices within mobile applications.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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