CVE-2024-0762 is a high-severity vulnerability identified in the Phoenix SecureCore™ firmware, which affects multiple Intel platforms. This vulnerability allows for potential buffer overflow due to unsafe handling of UEFI variables. With a CVSS score of 7.5, it represents a significant risk to organizations using affected hardware configurations. Specifically, the vulnerability impacts firmware versions across a range of Intel platforms, including Kaby Lake, Coffee Lake, Ice Lake, Comet Lake, Tiger Lake, Jasper Lake, Alder Lake, Raptor Lake, and Meteor Lake.
The urgency of addressing this vulnerability cannot be overstated. The exploitation status is known, with confirmed exploits available. Organizations must prioritize patching their systems immediately to prevent potential exploitation that could lead to unauthorized access or system compromise.
Risk to organizations includes potential unauthorized access to sensitive data, system integrity compromise, and significant operational disruptions. The likelihood of exploitation is high due to the nature of the vulnerability and the availability of exploit code.
In light of these factors, organizations using affected versions of Phoenix SecureCore™ must take immediate action to secure their environments. This includes updating to the latest firmware version as provided by Phoenix Technologies.
This vulnerability is classified under CWE-120, indicating a buffer copy without checking the size of the destination buffer, leading to potential overflow scenarios.
Organizations should also consider implementing additional security measures as part of their defense-in-depth strategy to mitigate risks associated with similar vulnerabilities in the future.
Vulnerability Details
This vulnerability allows for potential buffer overflow in unsafe UEFI variable handling in Phoenix SecureCore™ for select Intel platforms. The issue affects the following versions:
• Phoenix SecureCore™ for Intel Kaby Lake: from 4.0.1.1 before 4.0.1.998 • Phoenix SecureCore™ for Intel Coffee Lake: from 4.1.0.1 before 4.1.0.562 • Phoenix SecureCore™ for Intel Ice Lake: from 4.2.0.1 before 4.2.0.323 • Phoenix SecureCore™ for Intel Comet Lake: from 4.2.1.1 before 4.2.1.287 • Phoenix SecureCore™ for Intel Tiger Lake: from 4.3.0.1 before 4.3.0.236 • Phoenix SecureCore™ for Intel Jasper Lake: from 4.3.1.1 before 4.3.1.184 • Phoenix SecureCore™ for Intel Alder Lake: from 4.4.0.1 before 4.4.0.269 • Phoenix SecureCore™ for Intel Raptor Lake: from 4.5.0.1 before 4.5.0.218 • Phoenix SecureCore™ for Intel Meteor Lake: from 4.5.1.1 before 4.5.1.15.
Technical Analysis
The root cause of CVE-2024-0762 is a buffer overflow that occurs when handling UEFI variables without proper size checks. The attack vector for this vulnerability is local, meaning that an attacker must have local access to the affected system to exploit it.
The attack complexity is considered high, as it requires a certain level of privilege (high) to execute the exploit successfully. No user interaction is required for exploitation, making it particularly dangerous.
The impacts of successful exploitation include high confidentiality, integrity, and availability impacts, which can lead to severe organizational consequences.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2024-0762 is significant. Organizations utilizing affected versions of Phoenix SecureCore™ may find themselves vulnerable to exploitation that compromises sensitive data and potentially disrupts operations.
The blast radius of this vulnerability is extensive, as it impacts multiple Intel platforms, raising the potential for widespread organizational risk. Given the CVSS score of 7.5, organizations should prioritize patching this vulnerability immediately.
Urgency is further emphasized by the confirmed existence of exploits and the potential for attackers to leverage this vulnerability in real-world scenarios. Organizations should assess their patch management processes and ensure that they are prepared to address this vulnerability promptly.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Affected versions of Phoenix SecureCore™ include:
• Intel Kaby Lake: from 4.0.1.1 before 4.0.1.998 • Intel Coffee Lake: from 4.1.0.1 before 4.1.0.562 • Intel Ice Lake: from 4.2.0.1 before 4.2.0.323 • Intel Comet Lake: from 4.2.1.1 before 4.2.1.287 • Intel Tiger Lake: from 4.3.0.1 before 4.3.0.236 • Intel Jasper Lake: from 4.3.1.1 before 4.3.1.184 • Intel Alder Lake: from 4.4.0.1 before 4.4.0.269 • Intel Raptor Lake: from 4.5.0.1 before 4.5.0.218 • Intel Meteor Lake: from 4.5.1.1 before 4.5.1.15.
Mitigation & Remediation
To mitigate the risk associated with CVE-2024-0762, organizations must update Phoenix SecureCore™ firmware to the latest version as recommended by Phoenix Technologies. The versions to upgrade to include:
• For Intel Kaby Lake, upgrade to 4.0.1.998 or later • For Intel Coffee Lake, upgrade to 4.1.0.562 or later • For Intel Ice Lake, upgrade to 4.2.0.323 or later • For Intel Comet Lake, upgrade to 4.2.1.287 or later • For Intel Tiger Lake, upgrade to 4.3.0.236 or later • For Intel Jasper Lake, upgrade to 4.3.1.184 or later • For Intel Alder Lake, upgrade to 4.4.0.269 or later • For Intel Raptor Lake, upgrade to 4.5.0.218 or later • For Intel Meteor Lake, upgrade to 4.5.1.15 or later.
If updates are not available, organizations should explore potential workarounds such as disabling UEFI variable handling where feasible and implementing strict access controls to limit local access to vulnerable systems. Additionally, enhancing monitoring and logging practices can help detect any unauthorized access attempts.
For further assistance, organizations may consider engaging with security professionals through services like penetration testing to identify and remediate vulnerabilities effectively.
Detection Guidance
Organizations should monitor logs for unusual access patterns or attempts to modify UEFI variables. Behavioral anomalies in system performance or unexpected reboots may also indicate exploitation attempts. Employing network signatures to detect abnormal traffic associated with the vulnerability can further enhance detection capabilities.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2024-0762 lies in its demonstration of the risks associated with UEFI firmware vulnerabilities. This incident highlights the critical need for organizations to adopt comprehensive security practices, including regular firmware updates and vulnerability management.
Security teams should take lessons from this vulnerability by prioritizing firmware security in their overall risk assessments. The trend of increasingly sophisticated attacks targeting firmware emphasizes the need for proactive security measures.
Strategically, organizations should invest in robust security training and continuous security testing to ensure they are prepared to defend against similar vulnerabilities in the future. For more insights, consider reading about penetration testing methodology and the importance of maintaining a strong security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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