CVE-2024-38796 represents a medium-severity vulnerability in EDK2, specifically in the function PeCoffLoaderRelocateImage(). This vulnerability allows an attacker to cause memory corruption through an adjacent network. If successfully exploited, it may lead to a loss of confidentiality, integrity, and/or availability. The CVSS score for this vulnerability is 5.9, indicating a moderate level of risk that organizations must address.
The risk to organizations includes potential exposure to unauthorized access and disruption of services. Given the nature of this vulnerability and the potential impacts, organizations should prioritize patching to mitigate risks associated with exploitation, as the attack vector is through adjacent networks.
Currently, there is no known exploit available for this vulnerability, and it is not listed in the Known Exploited Vulnerabilities (KEV) catalog. However, the vulnerability's existence and potential risk necessitate prompt action from security teams to assess and remediate affected systems. Organizations should address this vulnerability in their priority patch cycle.
Organizations must remain vigilant and keep abreast of updates regarding this vulnerability. Adequate monitoring and timely patching are essential to safeguard against potential threats posed by CVE-2024-38796.
Vulnerability Details
EDK2 contains a vulnerability in the PeCoffLoaderRelocateImage(). An attacker may cause memory corruption due to an overflow via an adjacent network. A successful exploit of this vulnerability may lead to a loss of confidentiality, integrity, and/or availability. The CVSS vector for this vulnerability is CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L.
The attack complexity is high, with low privileges required and no user interaction necessary. The impacts on confidentiality, integrity, and availability are categorized as low, high, and low, respectively.
Technical Analysis
The root cause of this vulnerability is an integer overflow during the execution of the PeCoffLoaderRelocateImage() function. The attack vector is classified as adjacent network, indicating that exploitation requires the attacker to be on the same network segment as the target system.
Given the high attack complexity, an attacker would need to carefully manipulate the inputs to trigger the overflow. However, if successful, the consequences could be severe, including memory corruption that may compromise the system's functionality and lead to unauthorized access or data loss.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2024-38796 is significant. Organizations utilizing EDK2 in environments that allow adjacent network access should evaluate their exposure to this vulnerability. The potential blast radius is concerning, as successful exploitation could lead to unauthorized access to sensitive information and disruption of critical services.
Organizations should prioritize patching immediately. The CVSS score of 5.9 indicates a medium severity, which should drive organizations to address this vulnerability within their patch cycles. Given that it is not actively exploited as of now, organizations have a window for remediation but should not delay.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Currently, there are no specific affected products or versions listed. Organizations should consider all versions of EDK2 as potentially vulnerable until further guidance is available.
Mitigation & Remediation
Organizations should prioritize patching this vulnerability as soon as possible. If a patch is not available, implementing network segmentation to limit adjacent network access could be an interim measure. Additionally, maintaining up-to-date security practices and monitoring for unusual activity can help mitigate risks associated with this vulnerability. For further guidance, organizations can refer to our penetration testing services to assess their security posture.
Detection Guidance
Monitoring for behavioral anomalies and unusual network traffic patterns can help in early detection of attempts to exploit this vulnerability. Maintaining logs that track access to the PeCoffLoaderRelocateImage() function and related components will assist in identifying potential exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2024-38796 highlights a continuing trend of vulnerabilities associated with memory corruption in software components. Security teams should recognize the importance of implementing rigorous testing and validation processes to identify such vulnerabilities before they can be exploited. Organizations are encouraged to adopt comprehensive security practices, including regular penetration testing and ongoing security assessments to bolster their defenses.
Furthermore, organizations should consider adopting a proactive approach to security, integrating practices such as threat modeling and vulnerability management into their development lifecycle. This will not only help in addressing current vulnerabilities but also in mitigating future risks.
For additional insights on improving security resilience, organizations should explore our resources on vulnerability management programs and effective security practices.
In conclusion, CVE-2024-38796 serves as a reminder of the ongoing challenges in software security, emphasizing the need for continuous vigilance and proactive measures.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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