CVE-2014-3153 is a high-severity vulnerability found in the Linux kernel, specifically within the futex_requeue function. This vulnerability allows local users to gain elevated privileges through a crafted FUTEX_REQUEUE command, which does not ensure that calls have two different futex addresses. The implications of this vulnerability are significant, as it can facilitate unauthorized access and manipulation of system resources, leading to potential system compromise.
The CVSS score assigned to this vulnerability is 7.8, indicating a high level of risk. The attack vector is local, and the complexity is low, meaning that the exploitation requires minimal effort and can be accomplished by a local user with low privileges. The potential impacts on confidentiality, integrity, and availability are all rated as high, highlighting the critical nature of this vulnerability.
Organizations should prioritize patching immediately due to the potential for exploitation. This vulnerability has been added to the Known Exploited Vulnerabilities (KEV) catalog, confirming its active exploitation in the wild. Timely application of security updates is essential to mitigate the risks associated with this vulnerability.
In the context of operational security, the urgency to address this vulnerability is underscored by its presence in the KEV catalog, which indicates ongoing exploitation activities. It is crucial for security teams to remain vigilant and proactive in monitoring their systems for any signs of exploitation.
The Linux kernel is integral to numerous systems and platforms, making the impact of this vulnerability far-reaching. Organizations utilizing affected versions must take immediate action to safeguard their environments.
Vulnerability Details
The futex_requeue function in kernel/futex.c in the Linux kernel through version 3.14.5 has a flaw that allows local users to gain privileges through a crafted FUTEX_REQUEUE command. The official CVE description clarifies that the lack of proper validation for futex addresses can lead to unsafe waiter modification. This issue is crucial for organizations running Linux kernels within the specified version range, as it poses a significant risk of privilege escalation.
This vulnerability is classified as high severity, with a CVSS score of 7.8, indicating a critical need for remediation. The attack vector is local, and the attack complexity is low, requiring low privileges, and no user interaction is needed to exploit the vulnerability.
The vulnerability affects multiple Linux distributions, including but not limited to, Red Hat Enterprise Linux, Ubuntu, and openSUSE. The publication date of this CVE was June 7, 2014, and it remains vital for organizations using these systems to ensure they are updated to patched versions.
Technical Analysis
The root cause of CVE-2014-3153 stems from improper handling of futex addresses in the Linux kernel. The futex_requeue function does not validate that the futex addresses involved in the requeue operation are distinct. This oversight allows malicious local users to manipulate the kernel's behavior to their advantage.
The attack vector is strictly local, as the exploitation requires access to the system where the kernel runs. The complexity remains low, making it easier for users with minimal privileges to exploit the flaw. Importantly, no user interaction is required, enhancing the ease of exploitation.
The impacts on confidentiality, integrity, and availability are all rated as high. Successful exploitation could lead to unauthorized access, data breaches, and service disruptions. The vulnerability represents a significant risk for organizations relying on affected Linux kernel versions.
Risk & Impact Analysis
Organizations running vulnerable versions of the Linux kernel face substantial risks from CVE-2014-3153. The potential for local privilege escalation could allow attackers to gain unauthorized access to sensitive data and critical infrastructure, leading to severe operational disruptions.
Given the high CVSS score of 7.8, organizations are urged to implement patches immediately. The urgency is amplified by the vulnerability's inclusion in the KEV catalog, indicating active exploitation in the wild. The blast radius of this vulnerability could extend to numerous systems running the affected kernel versions, emphasizing the need for rapid action.
Organizations should also prioritize enhancing their security posture through regular vulnerability assessments and penetration testing. This proactive approach will help identify and mitigate similar vulnerabilities before they can be exploited.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The vulnerability affects various versions of the Linux kernel, specifically those prior to version 3.14.6 and includes multiple distributions such as Red Hat Enterprise Linux, Ubuntu, and openSUSE. Organizations should ensure they upgrade to the latest patched versions to mitigate this risk.
Mitigation & Remediation
Organizations must apply the necessary patches to mitigate the risks associated with CVE-2014-3153. Upgrading to the latest version of the Linux kernel, as per vendor instructions, is crucial to secure systems against this vulnerability. Additionally, organizations should consider implementing configuration hardening techniques and network controls to further reduce their attack surface.
For ongoing security assurance, organizations may benefit from conducting regular security assessments and penetration testing. This proactive approach allows organizations to identify and remediate vulnerabilities before they can be exploited. For further guidance, organizations can refer to our comprehensive resource on penetration testing best practices.
Detection Guidance
Organizations should monitor logs for indicators of exploitation attempts related to CVE-2014-3153. Key indicators include unusual futex manipulation calls and privilege escalation attempts. Behavioral anomalies, such as unexpected changes in user permissions or accesses, should also be investigated.
AppSecure Threat Intelligence Insight
CVE-2014-3153 highlights the importance of rigorous validation in system calls to prevent privilege escalation vulnerabilities. It represents a pattern of vulnerabilities that arise from inadequate input validation and can be leveraged by attackers to gain unauthorized access. Security teams should take this incident as a learning opportunity and implement robust validation mechanisms across their systems.
Furthermore, organizations should stay informed on emerging threats and trends in the exploitation of such vulnerabilities. Regularly updating threat intelligence and sharing findings with the security community can enhance collective defenses against similar vulnerabilities in the future. For more information on enhancing security practices, consider our resources on penetration testing methodology and vulnerability management program design to strengthen your organization's defenses.
By understanding the implications of CVE-2014-3153 and taking proactive measures, organizations can significantly reduce their risk exposure and enhance their security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)