Sensitive Information Exposure in RESTEasy Client - CVE-2020-25633
Summary
CVE-2020-25633: A flaw was found in RESTEasy client in all versions of RESTEasy up to 4.5.6.Final. Affects resteasy3.0 across 2 version ranges.
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No fix is published. How to fix ↓
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Background
RESTEasy is a JAX-RS implementation that provides a framework for developing RESTful web services in Java. It is widely used in various applications for its ease of use and integration capabilities. The vulnerability in question affects all versions of RESTEasy up to 4.5.6.Final, potentially exposing sensitive server information to client users under certain conditions.
Vulnerability Detail
CVE-2020-25633 is a flaw found in the RESTEasy client that allows client users to access potentially sensitive information from the server when a WebApplicationException occurs during a RESTEasy client call. This vulnerability poses a significant threat to data confidentiality, as it can lead to unauthorized access to sensitive data. The issue arises from improper handling of exceptions, which may inadvertently reveal server-side information to the client.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, developers can implement additional error handling in their applications to prevent sensitive information from being exposed in exception messages. This can be done by customizing the error responses sent from the server to ensure that no sensitive data is included.
Conclusion
CVE-2020-25633 represents a significant vulnerability in the RESTEasy client that can lead to unauthorized access to sensitive server information. It is crucial for users to upgrade to a secure version of RESTEasy to mitigate this risk. Implementing proper error handling can also help protect sensitive data in the interim.
See every vulnerability recorded for resteasy3.0 →
FAQ
CVE-2020-25633 is a vulnerability in the RESTEasy client that may allow unauthorized access to sensitive server information when a WebApplicationException occurs.
All versions of RESTEasy up to 4.5.6.Final are affected by this vulnerability.
The primary risk is data confidentiality, as sensitive information may be exposed to client users, leading to potential data breaches.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The CVSS score for CVE-2020-25633 is 5.3, indicating a moderate level of severity.
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