CVE-2022-33710 in Galaxy Store
Summary
by MITRE • 07/12/2022
Improper input validation vulnerability in BillingPackageInsraller in Galaxy Store prior to version 4.5.41.8 allows local attackers to launch activities as Galaxy Store privilege.
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Analysis
by VulDB Data Team • 07/23/2022
The vulnerability identified as CVE-2022-33710 represents a critical improper input validation flaw within the BillingPackageInsraller component of Samsung Galaxy Store applications prior to version 4.5.41.8. This security weakness stems from inadequate validation of user-supplied input data, creating an exploitable condition that allows local attackers to manipulate the application's behavior. The vulnerability specifically affects the privilege escalation mechanism within the Galaxy Store's billing package installation process, where insufficient input sanitization enables malicious actors to execute unauthorized activities with elevated privileges.
The technical implementation of this flaw resides in the BillingPackageInsraller module which handles the installation and processing of billing packages within the Galaxy Store ecosystem. When the application fails to properly validate input parameters during package installation, it creates an opportunity for attackers to inject malicious payloads or manipulate the installation flow. This improper input validation vulnerability falls under the CWE-20 category of "Improper Input Validation" and represents a classic privilege escalation vector. The vulnerability's exploitation occurs through local attack vectors where an attacker already has access to the device and can manipulate the application's installation process to gain elevated privileges typically reserved for the Galaxy Store application itself.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with unauthorized access to sensitive billing functionalities and potentially sensitive user data within the Galaxy Store environment. Local attackers can leverage this vulnerability to execute malicious activities with the elevated privileges of the Galaxy Store application, potentially accessing payment information, user accounts, or other sensitive data that the application normally protects. The attack surface is particularly concerning given that the Galaxy Store serves as a primary distribution channel for applications and services on Samsung devices, making this vulnerability a significant threat to user security and privacy. This weakness enables adversaries to potentially install malicious applications, modify existing billing packages, or access restricted system functionalities that should only be available to the legitimate application.
Security mitigations for CVE-2022-33710 require immediate deployment of the patched Galaxy Store version 4.5.41.8 or later, which addresses the improper input validation by implementing proper sanitization and validation of all input parameters. Organizations should also implement additional defensive measures including monitoring for unauthorized activity patterns, conducting security assessments of installed applications, and ensuring that all Samsung devices receive timely security updates. The vulnerability's classification under the ATT&CK framework falls under privilege escalation techniques, specifically targeting local system privileges and application-level elevation. System administrators should also consider implementing application control measures and monitoring for suspicious installation activities. The patch addresses the core issue by enforcing strict input validation protocols that prevent malicious payloads from being processed during the billing package installation, thereby closing the exploitation vector that allowed attackers to gain elevated privileges within the Galaxy Store environment.