CVE-2022-36271 in PC Repair Installation File
Summary
by MITRE • 09/07/2022
Outbyte PC Repair Installation File 1.7.112.7856 is vulnerable to Dll Hijacking. iertutil.dll is missing so an attacker can use a malicious dll with same name and can get admin privileges.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 07/30/2026
The vulnerability identified as CVE-2022-36271 represents a critical dll hijacking flaw in Outbyte PC Repair Installation File version 1.7.112.7856. This vulnerability stems from the application's improper handling of dynamic link library loading mechanisms, specifically when the iertutil.dll component is missing from the expected system paths. The flaw allows adversaries to exploit the application's dependency resolution process by placing a malicious dll file with the same name as the missing iertutil.dll in strategic locations within the system's search path. This vulnerability directly maps to CWE-426 which defines the weakness of untrusted search path usage, where applications execute code from untrusted locations due to improper path resolution. The attack vector leverages the Windows dynamic link library loading mechanism where the system searches for required dll files in a predefined order including the current working directory, system directories, and user-defined paths. When the legitimate iertutil.dll file is not found in these locations, the system falls back to loading a malicious version from a directory that the attacker controls, typically the current working directory of the vulnerable application.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass full system compromise capabilities. Once an attacker successfully places a malicious dll file in the appropriate location, the vulnerable application will load this malicious component when executed, potentially elevating the attacker's privileges to system level. This privilege escalation allows the malicious actor to perform actions such as modifying system files, installing additional malware, creating backdoors, or accessing sensitive data without user consent. The vulnerability is particularly concerning because it can be exploited by attackers who gain access to the victim's system through social engineering, phishing, or other initial compromise techniques, making it a significant threat in the context of the attack chain defined by MITRE ATT&CK framework under techniques such as privilege escalation and persistence. The vulnerability's exploitation does not require complex payloads or advanced knowledge of the target system, making it particularly dangerous for widespread deployment attacks.
Mitigation strategies for CVE-2022-36271 should focus on multiple defensive layers to prevent exploitation of this dll hijacking vulnerability. Organizations should implement application whitelisting policies that restrict which applications can execute on the system, particularly focusing on preventing unauthorized dll loading from arbitrary directories. System administrators should ensure that the vulnerable application is updated to a patched version that properly handles dll loading or that the missing iertutil.dll file is properly installed in the expected system paths. Additional protective measures include implementing strict directory permissions, disabling unnecessary search paths, and monitoring for suspicious dll loading activities through endpoint detection and response solutions. The vulnerability also highlights the importance of secure coding practices and proper dependency management in application development, aligning with security best practices recommended by organizations such as the open web application security project. Network segmentation and regular security audits can help identify systems running vulnerable versions of the software, while user education about the risks of executing untrusted software remains crucial in preventing initial compromise that could lead to exploitation of this vulnerability.