CVE-2024-23907 in High Level Synthesis Compiler Software
Summary
by MITRE • 08/14/2024
Uncontrolled search path in some Intel(R) High Level Synthesis Compiler software before version 23.4 may allow an authenticated user to potentially enable escalation of privilege via local access.
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Analysis
by VulDB Data Team • 09/07/2024
The vulnerability identified as CVE-2024-23907 represents a critical security flaw within Intel's High Level Synthesis Compiler software ecosystem, specifically affecting versions prior to 23.4. This issue constitutes a classic uncontrolled search path vulnerability that manifests through improper handling of system paths during software execution. The flaw exists in the compiler's path resolution mechanisms where the software fails to properly validate or sanitize the search paths used to locate required libraries, binaries, or configuration files. Attackers can exploit this weakness by manipulating the environment variables or directory structures to redirect the compiler's path resolution to malicious components, potentially leading to privilege escalation.
This vulnerability operates under the Common Weakness Enumeration category CWE-427, which specifically addresses Uncontrolled Search Path Elements, and falls within the broader ATT&CK framework under privilege escalation techniques. The security implications are particularly severe because the vulnerability requires only authenticated access, meaning that any user with legitimate access to the system can potentially exploit this flaw. The local access requirement limits the attack surface but does not eliminate the danger, as authenticated users often possess sufficient privileges to cause significant damage within their operational environment.
The technical exploitation of this vulnerability involves manipulating the dynamic link library (DLL) search order or executable path resolution mechanisms that the Intel High Level Synthesis Compiler relies upon during its operation. When the compiler attempts to locate required components, it follows a predetermined search path that may include user-controlled directories. If an attacker can place malicious binaries or libraries in these search paths, the compiler will execute these unauthorized components with the privileges of the user running the compiler. This creates a pathway for attackers to execute arbitrary code with elevated privileges, potentially enabling them to gain system-level access or escalate their privileges to root or administrator levels.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it can be leveraged to create persistent backdoors, install malicious software, or exfiltrate sensitive data from systems running affected Intel compiler versions. Organizations using Intel High Level Synthesis Compiler for hardware design and verification processes face particular risk, as these environments often contain sensitive intellectual property and critical system components. The vulnerability's presence in synthesis tools means that attackers could potentially compromise the integrity of hardware design files or gain access to proprietary design information during the compilation process. Additionally, the localized nature of the attack means that traditional network-based security measures may not detect this threat, requiring more sophisticated endpoint protection and privilege monitoring solutions.
Mitigation strategies for CVE-2024-23907 primarily focus on immediate software updates and system hardening measures. Organizations should prioritize upgrading to Intel High Level Synthesis Compiler version 23.4 or later, which includes fixes for the uncontrolled search path vulnerability. System administrators should also implement strict path validation controls, ensuring that environment variables such as PATH, LD_LIBRARY_PATH, and similar search path mechanisms are properly configured and monitored. Additional protective measures include implementing least privilege principles for users accessing the compiler, conducting regular security audits of system paths, and deploying endpoint detection and response solutions that can monitor for suspicious path resolution patterns. The vulnerability also underscores the importance of maintaining comprehensive software inventory management and ensuring that all development tools, particularly those used in critical system design processes, are kept current with security patches.