The package com.google.code.gson:gson before 2.8.9 are vulnerable to Deserialization of Untrusted Data via the writeReplace() method in internal classes, which may lead to DoS attacks. This vulnerability has a CVSS score of 7.7, indicating a high severity level. Organizations using affected versions should be aware of the risks, as attackers may leverage this vulnerability to disrupt services.
Risk to organizations includes potential denial-of-service (DoS) conditions, which could impact availability. The vulnerability is classified under CWE-502 and affects several products, including various Debian Linux distributions and Google's Gson package. Given the potential impact, organizations should prioritize patching immediately.
The vulnerability was published on May 1, 2022, and has been classified as modified since then. No public exploits are confirmed, but the elevated CVSS score indicates that the vulnerability poses a significant risk that should not be overlooked.
In light of the potential for exploitation, organizations must take proactive steps to mitigate risks associated with this vulnerability. Regular updates and thorough testing of systems can help ensure that such vulnerabilities do not lead to operational disruptions.
Vulnerability Details
The vulnerability affects versions of Gson prior to 2.8.9. Specifically, it allows for the deserialization of untrusted data which can lead to DoS attacks. The official CVE description states, "The package com.google.code.gson:gson before 2.8.9 are vulnerable to Deserialization of Untrusted Data via the writeReplace() method in internal classes, which may lead to DoS attacks." The CVSS score of 7.7 reflects the severity of this vulnerability.
Affected products include Gson, Debian Linux distributions (versions 9.0, 10.0, and 11.0), NetApp Active IQ Unified Manager, and Oracle products like Financial Services Crime and Compliance Management Studio and GraalVM.
The vulnerability has been assigned a CWE classification of CWE-502, which denotes issues related to deserialization of untrusted data.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of data deserialization in the Gson library. Specifically, the writeReplace() method can be manipulated to process untrusted data. The attack vector is network-based, requiring no user interaction, and the complexity is classified as high. As a result, this vulnerability can potentially be exploited with minimal effort by malicious actors.
The vulnerability requires no privileges, meaning that an attacker can exploit it without needing any authentication. The impacts of exploitation include high integrity and availability impacts, with low confidentiality impact. This means that an attacker could significantly disrupt service availability without compromising sensitive data.
Risk & Impact Analysis
The impact of this vulnerability extends beyond just the affected systems. Organizations utilizing the affected versions of Gson face a real-world risk of denial-of-service attacks, which can lead to significant downtime and financial losses. The ease of exploitation, combined with the potential for widespread disruption, underscores the importance of addressing this vulnerability promptly.
Furthermore, as organizations increasingly rely on open-source libraries like Gson in their applications, the blast radius of such vulnerabilities expands. Affected organizations should assess their environments to identify dependencies on vulnerable versions and prioritize their remediation efforts accordingly.
With a CVSS score of 7.7, this vulnerability falls into the high-severity category, indicating that immediate action is necessary. Organizations should address this vulnerability in priority patch cycles to mitigate the risk of potential exploitation.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
This vulnerability affects all versions of Google Gson prior to 2.8.9. Additionally, it impacts Debian Linux distributions including versions 9.0, 10.0, and 11.0, as well as various NetApp and Oracle products.
Mitigation & Remediation
For organizations using the affected versions, it is crucial to patch to version 2.8.9 or later of Google Gson. Additionally, regularly updating all software dependencies and conducting thorough security assessments can help prevent exploitation of this vulnerability.
Organizations should also consider implementing network controls to monitor traffic for anomalies that may indicate attempts to exploit this vulnerability. Further, ensuring secure coding practices during development can help mitigate similar risks in the future.
For further guidance, organizations may refer to our comprehensive penetration testing services which can help validate the security of their systems.
Detection Guidance
Organizations should monitor logs for unusual patterns that may indicate exploitation attempts, including unexpected errors during data deserialization processes. Additionally, behavioral anomalies in application performance may signal an active exploitation.
Network signatures that identify traffic patterns associated with this vulnerability can also be helpful. Monitoring system changes and conducting regular reviews of application behavior can aid in early detection of potential exploits.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2022-25647 lies in its demonstration of the risks associated with deserialization of untrusted data. This vulnerability highlights the critical need for secure coding practices in libraries and frameworks, particularly those widely adopted like Gson.
As organizations increasingly leverage open-source components, the patterns of vulnerabilities in such libraries present a growing trend that security teams must address. Incorporating regular security assessments and updates into their development processes can provide a strategic defense against similar threats.
For organizations looking to strengthen their defenses, we recommend exploring our penetration testing methodology for effective strategies to identify vulnerabilities.
Additionally, organizations should engage in continuous security testing, as outlined in our vulnerability management program design to ensure ongoing risk mitigation.
Finally, adopting a proactive stance towards security can significantly reduce the risk of exploitation, ensuring a more resilient infrastructure.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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