The vulnerability identified as CVE-2022-48564 affects Python's plistlib.py module, specifically the read_ints function. This vulnerability allows for a potential denial-of-service (DoS) attack, which can exhaust CPU and RAM resources when processing malformed Apple Property List files in binary format. The severity of this vulnerability is classified as Medium due to the high impact on availability, as indicated by the CVSS score of 6.5. Organizations should assess their exposure to this vulnerability and implement necessary measures to ensure their systems remain secure.
Risk to organizations includes the potential for service disruption, which could affect operations significantly. Given that the attack vector is over the network and requires user interaction, it is essential for organizations to be aware of the conditions under which this vulnerability can be exploited.
Currently, there are no known exploits in the wild, but the availability impact is a concern for organizations relying on these systems. As a result, organizations should prioritize patching immediately.
The vulnerability was published on August 22, 2023, and has been marked as modified, indicating that the information may have been updated since its initial disclosure. Organizations should stay informed about any changes to the vulnerability status.
Vulnerability Details
The CVE-2022-48564 vulnerability is rooted in the read_ints function within the plistlib.py file of Python. This function fails to adequately handle malformed Apple Property List files, allowing for excessive resource consumption, leading to potential denial of service.
This vulnerability classifies under CWE-400 (Uncontrolled Resource Consumption), highlighting the risk of resource exhaustion. The CVSS 3.1 score of 6.5 indicates a medium severity level, classified as a network attack with low complexity.
The affected products include multiple versions of Python, specifically those prior to 3.6.13, between 3.7.0 and 3.7.10, between 3.8.0 and 3.8.7, and between 3.9.0 and 3.9.1. Organizations using these versions should take immediate action to remediate this vulnerability.
Technical Analysis
The root cause of CVE-2022-48564 stems from inadequate input validation within the read_ints function. When the function encounters malformed binary Apple Property List files, the lack of proper handling leads to resource exhaustion. The attack can be executed over the network, requiring user interaction to trigger the vulnerability by processing a crafted Apple Property List file.
The attack complexity is low, as the user interaction required is minimal. Once the malicious file is processed, the potential for high availability impact is significant, making environments vulnerable to service interruptions.
In terms of confidentiality and integrity, the impacts are none; however, the availability impact is high. Organizations need to be vigilant in monitoring the use of affected Python versions and ensure they are patched to mitigate this risk.
Risk & Impact Analysis
The real-world deployment risk of CVE-2022-48564 is substantial, especially for organizations that rely on Python for critical applications. The potential for service disruption is high, which can lead to significant operational challenges.
Organizations using affected versions of Python should assess their exposure and apply patches as soon as they become available. The urgency for remediation is classified as medium due to the nature of the vulnerability and its potential impact on availability.
Given the CVSS score of 6.5, organizations should be aware of the implications of this vulnerability and ensure they have appropriate mitigation strategies in place, such as monitoring for unusual behavior and ensuring proper configurations to limit exposure.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerable versions of Python include all versions prior to 3.6.13, as well as versions from 3.7.0 to 3.7.10, from 3.8.0 to 3.8.7, and from 3.9.0 to 3.9.1. Organizations using these versions must take action to patch their systems.
Mitigation & Remediation
To remediate CVE-2022-48564, organizations should upgrade to a patched version of Python. Patching guidance can be found in official advisories, and users should ensure they are using the latest stable release.
In the absence of an immediate patch, organizations may consider implementing workarounds, such as restricting the processing of untrusted Apple Property List files or setting resource limits to prevent exhaustion.
Organizations may also benefit from penetration testing to identify additional vulnerabilities in their systems.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual CPU and memory usage patterns that may indicate processing of malformed Apple Property List files.
Behavioral anomalies during file processing sessions should be investigated, and network signatures associated with known attack patterns should be established.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2022-48564 lies in its potential to disrupt critical services for organizations utilizing Python. This vulnerability highlights the importance of robust input validation mechanisms to prevent resource exhaustion attacks.
Security teams should take this opportunity to review their defensive strategies and implement comprehensive testing practices. The lessons learned from this vulnerability emphasize the necessity for continuous monitoring and timely patch management.
Organizations can enhance their security posture by engaging in continuous security testing, which can help in identifying weaknesses before they are exploited. Regular reviews of security configurations and staff training on security best practices are also essential.
For further insights and strategies, organizations can refer to resources on penetration testing methodology and vulnerability management programs to better prepare against such vulnerabilities.
In conclusion, organizations should prioritize patching affected systems to mitigate the risks associated with this vulnerability.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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