CVE-2010-3300: Padding oracle attacks in org.owasp.esapi:esapi
Summary
CVE-2010-3300: Padding oracle attacks. Affects org.owasp.esapi:esapi versions < 2.0GA. Fixed in 2.0GA. How to fix ↓
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Background
The org.owasp.esapi:esapi package is a Java library that provides a set of security functions for web applications. It is designed to help developers prevent common security vulnerabilities such as cross-site scripting (XSS), SQL injection, and cross-site request forgery (CSRF). However, versions up to 2.0 RC2 are vulnerable to padding oracle attacks.
Vulnerability Detail
Padding oracle attacks exploit the behavior of a cryptographic system where the attacker can gain information about the plaintext by observing the system's response. In the case of org.owasp.esapi:esapi, this vulnerability allows an attacker to decrypt encrypted data by sending specially crafted requests and analyzing the server's response. This can lead to the exposure of sensitive information or the ability to tamper with encrypted data.
How To Fix
Latest published version: 2.7.0.1-RC1 as of 22 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
2.0GA
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is necessary to upgrade to the fixed version of org.owasp.esapi:esapi to mitigate the risk.
Conclusion
The org.owasp.esapi:esapi package up to version 2.0 RC2 is vulnerable to padding oracle attacks. To mitigate this vulnerability, it is crucial to upgrade to version 2.0GA or later and recompile the code. Any compromised encrypted data should be re-encrypted with a new key. For additional assistance, please reach out to DevNack.com.
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FAQ
A padding oracle attack is a type of cryptographic attack where an attacker can decrypt encrypted data by exploiting the behavior of the system's response.
This vulnerability can lead to the exposure of sensitive information or the ability to tamper with encrypted data.
To fix this vulnerability, upgrade to version 2.0GA or later of org.owasp.esapi:esapi and recompile your code. Also, re-encrypt any compromised data with a new key.
No, there is no known workaround. Upgrading to the fixed version is necessary.
For further support on vulnerability remediation, you can contact info@devnack.com.
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