CVE-2024-21634 describes a high-severity vulnerability in Amazon Ion, specifically affecting versions prior to 1.10.5. This flaw can lead to denial-of-service (DoS) conditions due to improper handling of Ion data during deserialization. When applications utilize `ion-java` for deserializing Ion text or binary encoded data into the `IonValue` model, maliciously crafted Ion data can trigger a `StackOverflowError`. This vulnerability poses a significant risk to organizations relying on Amazon Ion for data processing.
The CVSS score for this vulnerability is 7.5, indicating a high level of severity. Given the potential for a DoS attack, organizations utilizing Amazon Ion should take immediate action to mitigate this risk. The patch has been provided in version 1.10.5 of `ion-java`, and it is crucial for organizations to prioritize applying this update.
Risk to organizations includes potential service downtime and disruption, which can lead to loss of productivity and increased operational costs. Attackers may leverage this vulnerability to impact application availability, making it essential for organizations to address this issue promptly. Organizations should prioritize patching immediately to ensure their environments remain secure.
As of now, there are no known exploits for this vulnerability, but the nature of denial-of-service vulnerabilities often makes them attractive targets for malicious actors. Therefore, proactive measures must be taken to prevent any potential exploitation.
Organizations should also consider implementing best practices, such as input validation and avoiding the processing of untrusted data, as interim measures while the patch is applied.
The publication date of this vulnerability is January 3, 2024, and it has since been modified. Keeping abreast of updates from vendors and applying them in a timely manner is crucial for maintaining the security posture of any organization.
In summary, CVE-2024-21634 represents a significant risk due to its potential to disrupt services. Organizations using Amazon Ion must act swiftly to patch this vulnerability to mitigate any potential threats.
Vulnerability Details
This vulnerability allows denial of service due to a StackOverflowError in the `ion-java` library when deserializing Ion data. The affected component is Amazon Ion, specifically the `ion-java` implementation used in applications.
The vulnerability was published on January 3, 2024, and has a CVSS score of 7.5, indicating high severity. The CWE classification for this issue is CWE-770.
Technical Analysis
The root cause of this vulnerability lies in the deserialization process of Ion data. Specifically, applications that use `ion-java` to deserialize Ion text or binary data into the `IonValue` model can be exploited by manipulated Ion data. The attack vector is classified as NETWORK, meaning an attacker can exploit this vulnerability remotely without physical access to the target system.
The attack complexity is considered low, as the exploitation does not require significant skill or resources. Importantly, no privileges are required for an attacker to exploit this vulnerability, and user interaction is not necessary, which further increases the risk. The impact on availability is high, as it could render the affected application non-functional.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2024-21634 is significant. Organizations using Amazon Ion could face substantial downtime if this vulnerability is exploited. The potential blast radius includes any service dependent on `ion-java`, which could affect multiple applications and services within an organization.
Given the CVSS score of 7.5, organizations should address this vulnerability in their priority patch cycle. The urgency is underscored by the ease of exploitation and the potential for high-impact denial-of-service conditions.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected product is Amazon Ion, specifically versions prior to 1.10.5. Organizations should upgrade to version 1.10.5 or later to mitigate the risk associated with this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations must upgrade to `ion-java` version 1.10.5. If immediate upgrading is not feasible, organizations should avoid loading data from untrusted sources and consider implementing additional input validation measures.
For ongoing security assessments, organizations may find it beneficial to engage in penetration testing to identify and address similar vulnerabilities.
Detection Guidance
Organizations should monitor logs for any unusual behavior associated with the `ion-java` library. Additionally, any failures or errors related to deserialization should be flagged for investigation.
AppSecure Threat Intelligence Insight
This vulnerability highlights the importance of securing deserialization processes in applications. As organizations increasingly rely on complex data models, ensuring that only trusted data is processed becomes paramount. Security teams should review their practices for handling external data and ensure proper validation is in place. Engaging in proactive security assessments can help organizations identify similar vulnerabilities before they can be exploited.
For further insights into application security, organizations can access our application security assessment guide and implement best practices.
Organizations can also benefit from understanding the latest trends in penetration testing, which can be explored in our penetration testing methodology report.
Finally, organizations looking to enhance their security posture should consider our security testing best practices guide.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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