CVE-2012-5783: Improper Certificate Validation in Apache HttpClient
Summary
CVE-2012-5783: Improper Certificate Validation in Apache Commons HttpClient. Affects commons-httpclient:commons-httpclient versions >= 3.0. No fix is published. How to fix ↓
Also tracked for
- commons-httpclient · Debian:11
The same CVE-2012-5783 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
Apache HttpClient is a widely used Java library for making HTTP requests. It provides a comprehensive set of features for interacting with HTTP servers. The vulnerability identified as CVE-2012-5783 affects versions 3.x of Apache Commons HttpClient, which is used in various products including the Amazon Flexible Payments Service (FPS) merchant Java SDK. This vulnerability arises from the library's failure to properly validate server certificates, allowing attackers to perform man-in-the-middle attacks by spoofing SSL servers with arbitrary valid certificates.
Vulnerability Detail
The vulnerability in Apache HttpClient arises from the library's failure to verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate. This oversight enables attackers to intercept and manipulate the communication between the client and server, potentially leading to unauthorized access, data leakage, or other malicious activities. The impact of this vulnerability can be significant, as it undermines the security of SSL/TLS connections and compromises the integrity and confidentiality of sensitive information transmitted over the network.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround provided for this vulnerability. However, developers can consider implementing additional certificate validation checks in their code to mitigate the risk of man-in-the-middle attacks. This can involve verifying the server certificate's Common Name (CN) or subjectAltName field against the expected domain name. It is important to note that such custom checks should be implemented with caution and in accordance with best practices to avoid introducing other security vulnerabilities.
Conclusion
In conclusion, the CVE-2012-5783 vulnerability in Apache HttpClient exposes applications to the risk of man-in-the-middle attacks by failing to properly validate server certificates. To mitigate this vulnerability, it is crucial to upgrade to a fixed version of the library and implement robust certificate validation checks. For further assistance and support in addressing this vulnerability, please contact DevNack.com.
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FAQ
Apache HttpClient is a Java library for making HTTP requests. It provides a convenient and flexible API for interacting with HTTP servers.
The vulnerability allows attackers to spoof SSL servers and perform man-in-the-middle attacks, compromising the security of SSL/TLS connections and potentially leading to unauthorized access or data leakage.
Versions 3.x of Apache Commons HttpClient are affected by this vulnerability.
Yes, the vulnerability has been fixed in version 4.0 and later of Apache HttpClient.
To protect your application, it is recommended to upgrade to a fixed version of Apache HttpClient (4.0 or later) and ensure proper validation of server certificates.
