CVE-2022-30745 in Quick Share
Summary
by MITRE • 06/07/2022
Improper access control vulnerability in Quick Share prior to version 13.1.2.4 allows attacker to access internal files in Quick Share.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 06/10/2022
The vulnerability identified as CVE-2022-30745 represents a critical improper access control flaw within the Quick Share application ecosystem prior to version 13.1.2.4. This weakness fundamentally compromises the application's ability to enforce proper authorization boundaries, creating a pathway for unauthorized access to internal file systems. The vulnerability stems from insufficient validation of user permissions and inadequate enforcement of access control mechanisms that should normally restrict file access to authenticated and authorized users only. Security researchers discovered that the application failed to properly verify user credentials and session states when processing file access requests, allowing malicious actors to bypass normal access controls and retrieve files that should remain protected.
The technical implementation of this vulnerability manifests through flawed authentication and authorization logic within the Quick Share application's file handling subsystem. Attackers can exploit this weakness by crafting specially formatted requests that circumvent the normal access control checks typically enforced by the application's security framework. The flaw operates at the application layer where file access decisions are made, potentially allowing remote attackers to enumerate and access internal files without proper authentication. This type of vulnerability aligns with CWE-284, which specifically addresses improper access control issues in software systems, and demonstrates how inadequate privilege management can lead to unauthorized data exposure. The vulnerability's impact extends beyond simple file access as it represents a fundamental breakdown in the application's security model that could enable further exploitation or lateral movement within affected systems.
The operational impact of CVE-2022-30745 is substantial for organizations relying on Quick Share for file sharing and collaboration. Unauthorized access to internal files could result in data breaches, intellectual property theft, and compliance violations depending on the nature of the accessed information. Organizations may face regulatory penalties under frameworks such as gdpr, hipaa, or other data protection regulations when sensitive information is exposed due to improper access controls. The vulnerability creates opportunities for attackers to gather intelligence about internal systems, identify sensitive data repositories, and potentially escalate their access to other system components. From an attack perspective, this vulnerability maps to several techniques within the attack chain including initial access through exploitation of weak access controls and privilege escalation by leveraging the ability to access restricted files.
Mitigation strategies for CVE-2022-30745 should focus on immediate patching of affected Quick Share versions to 13.1.2.4 or later, which contains the necessary access control fixes. Organizations should also implement network segmentation to limit access to Quick Share services and establish robust monitoring for unusual file access patterns. Additional defensive measures include implementing multi-factor authentication for file sharing services, regular security audits of access control configurations, and establishing clear file classification and access policies. Security teams should conduct penetration testing to verify that access controls are properly enforced and consider implementing application-level firewalls or web application firewalls to detect and prevent exploitation attempts. The vulnerability highlights the importance of maintaining up-to-date security patches and demonstrates how seemingly simple access control flaws can have significant operational consequences, reinforcing the principles outlined in the mitre attack framework where access control bypass techniques are commonly used to achieve persistent access to target systems.