CVE-2022-22287 in Email
Summary
by MITRE • 01/10/2022
Abitrary file access vulnerability in Samsung Email prior to 6.1.60.16 allows attacker to read isolated data in sandbox.
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Analysis
by VulDB Data Team • 01/13/2022
The vulnerability identified as CVE-2022-22287 represents a critical arbitrary file access flaw within Samsung Email application versions prior to 6.1.60.16. This security weakness resides in the application's sandboxing mechanisms and allows unauthorized access to isolated data that should remain protected from external interference. The vulnerability stems from insufficient validation of file paths and access controls within the email client's data handling processes, creating a pathway for malicious actors to bypass normal security boundaries.
The technical implementation of this flaw involves improper input sanitization and inadequate permission checking when processing email attachments or accessing local storage. Attackers can exploit this vulnerability by crafting specific file access requests that manipulate the application's file handling routines to traverse restricted directories and access sensitive data that should be isolated within the application's sandbox environment. This type of vulnerability falls under the CWE-22 category, specifically addressing improper limitation of a pathname to a restricted directory, commonly known as path traversal attacks. The weakness enables attackers to access files outside the intended scope of the application's data access permissions.
The operational impact of CVE-2022-22287 extends beyond simple data exposure, as it provides attackers with the capability to read confidential information stored within the email client's isolated environment. This includes potentially sensitive email content, contact information, account credentials, and other personal data that users expect to remain protected. The vulnerability affects Samsung Email applications running on Android platforms, where the sandboxing model is designed to isolate application data and prevent unauthorized access between different applications or system components. The exploitation of this weakness can lead to privacy violations, data breaches, and potential credential theft that could compromise user accounts and personal information.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1074.001, which involves data staging through the use of remote access tools or exploitation of application vulnerabilities. The attack vector typically involves initial compromise through malicious email attachments or crafted file requests that trigger the vulnerable code path. Security professionals should note that this vulnerability represents a sandbox escape condition that undermines the fundamental security model of the Android application framework. Organizations and users should prioritize immediate remediation through the installation of the patched Samsung Email version 6.1.60.16, which implements proper file access controls and path validation mechanisms. The mitigation strategy should also include monitoring for suspicious file access patterns and implementing additional security controls such as network segmentation and application whitelisting to reduce the attack surface.
The vulnerability demonstrates the critical importance of proper sandbox implementation and access control validation in mobile email applications. Samsung's patch for this issue likely includes enhanced input validation, stricter file path checking, and improved permission handling within the email client's data processing pipeline. Security teams should consider this vulnerability as part of broader mobile application security assessments and ensure that similar path traversal weaknesses are not present in other email clients or mobile applications within their environment. The incident highlights the ongoing challenge of maintaining secure sandbox boundaries in complex mobile operating systems where application isolation must be maintained while providing necessary functionality to users.