CVE-2019-8076 in Application Manager
Summary
by MITRE
Adobe application manager installer version 10.0 have an Insecure Library Loading (DLL hijacking) vulnerability. Successful exploitation could lead to Arbitrary Code Execution in the context of the current user.
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Analysis
by VulDB Data Team • 08/20/2020
Adobe Application Manager Installer version 10.0 contains a critical insecure library loading vulnerability that falls under CWE-427 Uncontrolled Search Path Element, creating a dangerous condition where malicious code can be executed with the privileges of the current user. This vulnerability specifically manifests as a DLL hijacking flaw that occurs when the installer fails to properly validate or control the search path used to locate dynamic link libraries during the installation process. The installer's improper handling of library loading mechanisms allows attackers to place malicious DLL files in directories that are searched before legitimate system locations, enabling unauthorized code execution.
The technical exploitation of this vulnerability requires an attacker to position a specially crafted malicious DLL file in a location that will be prioritized during the library loading sequence. When the vulnerable installer runs, it will load the malicious library instead of the intended legitimate one, providing attackers with arbitrary code execution capabilities. This type of attack aligns with ATT&CK technique T1059 Command and Scripting Interpreter, as the malicious code execution can occur through various scripting or binary execution methods. The vulnerability represents a significant risk because it operates within the context of the current user account, meaning that if a user with elevated privileges runs the installer, the malicious code will execute with those same elevated privileges.
The operational impact of this vulnerability extends beyond simple code execution, as it can enable attackers to establish persistent access, escalate privileges, or perform further reconnaissance within the compromised system. Attackers can leverage this vulnerability to install additional malware, modify system configurations, or exfiltrate sensitive data without requiring administrative privileges to initiate the attack. The vulnerability affects systems where the Adobe Application Manager Installer is present, particularly those where users have the ability to execute installer files. This makes it a particularly attractive target for attackers who seek to exploit user execution privileges in enterprise environments where Adobe software is commonly deployed.
Mitigation strategies should focus on immediate patching of the Adobe Application Manager Installer to version 10.1 or later, which addresses the insecure library loading vulnerability. Organizations should also implement strict access controls to prevent unauthorized users from executing installation files, particularly those that may contain vulnerable components. The principle of least privilege should be enforced by ensuring that users only have the minimum necessary permissions to perform their required tasks. Additionally, system administrators should monitor for suspicious file creation patterns in directories that are commonly searched during library loading processes, as this can serve as an early indicator of exploitation attempts. Network-based detection measures can be implemented to identify potential exploitation attempts by monitoring for unusual library loading behaviors or connections to known malicious domains. The vulnerability also underscores the importance of maintaining up-to-date software inventories and implementing robust patch management processes to prevent similar issues from arising in other software components.