CVE-2020-26945: Deserialization errors in MyBatis
Summary
CVE-2020-26945: "Deserialization errors in MyBatis". Affects org.mybatis:mybatis versions < 3.5.6. Fixed in 3.5.6. How to fix ↓
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Background
MyBatis is a popular Java persistence framework that provides a convenient way to interact with databases using SQL statements. It simplifies the process of mapping Java objects to database records and vice versa. MyBatis is widely used in enterprise applications to handle database operations efficiently. However, versions before 3.5.6 are susceptible to deserialization errors, which can lead to potential cache poisoning.
Vulnerability Detail
The vulnerability in MyBatis arises from mishandling deserialization of object streams. This can be exploited by an attacker to manipulate the cache and potentially execute arbitrary code. By crafting a malicious object stream, an attacker can poison the cache and compromise the integrity and confidentiality of the application. This vulnerability is rated as HIGH severity with a CVSS score of 8.1. The Common Weakness Enumeration (CWE) ID associated with this vulnerability is CWE-502.
How To Fix
Minimum fixed version
3.5.6
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is crucial to update to the patched version of MyBatis to mitigate the risk of cache poisoning and potential code execution.
Conclusion
The deserialization errors in MyBatis versions before 3.5.6 pose a significant risk of cache poisoning and potential code execution. It is crucial to update to the patched version to mitigate these vulnerabilities. Vulnerability monitoring tools like Vulert can help you stay informed about such vulnerabilities and take proactive measures to secure your application.
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FAQ
MyBatis is a Java persistence framework that simplifies database operations by providing a convenient way to map Java objects to database records using SQL statements.
Cache poisoning refers to the manipulation of a cache's contents by an attacker to introduce malicious data. In the context of this vulnerability, an attacker can exploit deserialization errors to poison the MyBatis cache and potentially execute arbitrary code.
This vulnerability can lead to cache poisoning, compromising the integrity and confidentiality of the application. An attacker can potentially execute arbitrary code, leading to further exploitation and unauthorized access to sensitive data.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Vulert provides real-time monitoring and alerts for open-source vulnerabilities without requiring access to the code or installation.
For further support on vulnerability remediation, you can reach out to info@devnack.com. Our team will be happy to assist you in addressing this vulnerability and ensuring the security of your application.
