CVE-2021-33106
📋 TL;DR
This CVE describes an integer overflow vulnerability in Intel's Safestring library that could allow an authenticated attacker with local access to potentially escalate privileges. The vulnerability affects systems using Intel software development tools and libraries. Successful exploitation could lead to arbitrary code execution with elevated privileges.
💻 Affected Systems
- Intel(R) oneAPI Toolkits
- Intel(R) System Studio
- Intel(R) Integrated Performance Primitives
- Intel(R) Data Analytics Acceleration Library
- Intel(R) Math Kernel Library
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker could execute arbitrary code with system-level privileges, potentially gaining complete control over the affected system.
Likely Case
An authenticated user could escalate privileges to gain unauthorized access to sensitive resources or perform administrative actions.
If Mitigated
With proper access controls and least privilege principles, impact would be limited to the compromised user's permissions.
🎯 Exploit Status
Exploitation requires local access and authentication, and knowledge of the vulnerable library usage in target applications.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Intel oneAPI Toolkits 2021.1 or later, updated versions of affected libraries
Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00584.html
Restart Required: Yes
Instructions:
1. Identify affected Intel software components. 2. Download and install updated versions from Intel's official repositories. 3. Restart affected systems. 4. Recompile applications using the updated libraries.
🔧 Temporary Workarounds
Restrict local access
allLimit local access to systems with vulnerable Intel libraries to trusted users only
Implement least privilege
allEnsure users have only necessary permissions to reduce impact of privilege escalation
🧯 If You Can't Patch
- Isolate systems with vulnerable Intel libraries from critical network segments
- Implement strict access controls and monitoring for systems with vulnerable components
🔍 How to Verify
Check if Vulnerable:
Check installed Intel software versions and compare against affected versions listed in Intel SA-00584Check Version:
On Linux: dpkg -l | grep intel OR rpm -qa | grep intel; On Windows: Check Programs and Features or use wmic product get name,versionVerify Fix Applied:
Verify installed Intel software versions are 2021.1 or later for oneAPI Toolkits, or updated versions for specific libraries📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts
- Suspicious process creation by authenticated users
- Access to sensitive system resources by non-admin users
Network Indicators:
- Local authentication events followed by unusual system calls
SIEM Query:
source="security_logs" AND (event_type="privilege_escalation" OR process_name="*intel*")