A use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, specifically in version 12.0.1.12430. This flaw allows an attacker to exploit the application by prematurely destroying annotation objects, which can trigger the reuse of previously freed memory. If successfully exploited, this vulnerability could lead to arbitrary code execution. An attacker would need to trick the user into opening a malicious PDF file to activate this vulnerability. Additionally, exploitation could occur through a specially-crafted malicious site if the browser plugin extension is enabled.
With a CVSS score of 7.8, this vulnerability is classified as high severity. The attack vector is local, meaning an attacker needs direct access to the target machine or requires user interaction. The attack complexity is low, as it does not necessitate any special conditions to exploit the vulnerability. Organizations should prioritize patching immediately to mitigate the risks associated with this flaw.
The risk to organizations includes potential unauthorized access to sensitive data, system integrity issues, and availability disruptions. Given the nature of the vulnerability, attackers may leverage it to execute arbitrary code, which can compromise systems significantly.
As of now, there are no known exploits or public proof of concepts available for this vulnerability. However, vigilance is crucial as attackers may develop methods to exploit this flaw in the future.
Organizations are advised to monitor for any updates from Foxit regarding this vulnerability and to implement necessary security measures promptly.
Vulnerability Details
The official CVE description states that a use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 12.0.1.12430. The vulnerability is categorized under CWE-416 and has a high impact on confidentiality, integrity, and availability.
Technical Analysis
The root cause of this vulnerability lies in improper memory management within the JavaScript engine. When annotation objects are destroyed prematurely, the memory allocated for these objects can be reused improperly, leading to unpredictable behavior and potentially allowing arbitrary code execution.
The attack vector for this vulnerability is local, requiring that the attacker has some means to trick the user into opening a malicious PDF file. The complexity of the attack is low, as it relies on user interaction to initiate the exploitation.
No special privileges are required to exploit this vulnerability, and user interaction is mandatory. The impact on confidentiality, integrity, and availability is high, as successful exploitation could allow an attacker to execute arbitrary code and take control of the vulnerable system.
Risk & Impact Analysis
Organizations face significant risks due to this vulnerability, primarily stemming from the potential for unauthorized access and control over affected systems. The blast radius can be extensive if exploited, particularly in environments where Foxit PDF Reader is widely used.
Given the CVSS score of 7.8, organizations should address this vulnerability in their priority patch cycle. The urgency is high, and immediate action is recommended to prevent possible exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The only affected version confirmed is Foxit PDF Reader version 12.0.1.12430. Organizations using this version should take immediate action to address the vulnerability.
Mitigation & Remediation
Foxit has released patches to remediate this vulnerability. Organizations should upgrade to the latest version of Foxit PDF Reader. For those unable to immediately apply the patch, implement strict network controls to prevent users from accessing potentially malicious sites and consider disabling the browser plugin extension as a temporary measure.
For further guidance on vulnerability management, organizations should consider employing strategies outlined in our vulnerability management program to ensure comprehensive protective measures.
Detection Guidance
Organizations should monitor logs for unusual file access patterns, especially related to PDF files. Look for behavioral anomalies that suggest unauthorized attempts to open or execute PDF files. Additionally, monitor network traffic for connections to known malicious domains that may leverage this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability is notable, as it demonstrates the ongoing risks associated with PDF readers and the potential for exploitation through user interaction. Security teams should take this opportunity to review their cloud security assessment strategies to ensure they are equipped to handle similar threats.
Additionally, this incident highlights the importance of continuous monitoring and updating of security protocols. Organizations should also evaluate their incident response plans and consider engaging in red teaming services to assess their defenses against such vulnerabilities.
Overall, organizations must remain vigilant and proactive in their security measures to mitigate risks associated with vulnerabilities like CVE-2022-38097.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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