CVE-2010-4340: Apache Libcloud SSL Certificate Verification Bypass
Summary
CVE-2010-4340: Apache Libcloud does not verify SSL certificates for HTTPS connections. Affects apache-libcloud versions < 0.4.0. Fixed in 0.4.0. How to fix ↓
Also tracked for
- libcloud · Debian:11
The same CVE-2010-4340 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 Libcloud is an open-source Python library that provides a unified interface for interacting with different cloud service providers. It allows developers to manage and provision cloud resources across various platforms. This vulnerability affects versions of Apache Libcloud prior to 0.4.1. The library does not properly verify SSL certificates for HTTPS connections, making it susceptible to man-in-the-middle (MITM) attacks. This issue is not directly related to Libcloud itself but is due to an upstream problem with Python's SSL module.
Vulnerability Detail
The vulnerability in Apache Libcloud allows remote attackers to spoof SSL certificates and bypass access restrictions through MITM attacks. By intercepting the communication between the client and the server, an attacker can present a fake SSL certificate, leading the client to believe it is communicating securely with the intended server. This can result in unauthorized access to sensitive information or the execution of malicious actions on the client's behalf.
How To Fix
Latest published version: 3.9.1 as of 23 Oct 2026
pip install --upgrade "apache-libcloud==3.9.1"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
0.4.0
This is the first release that contains the fix.
pip install --upgrade "apache-libcloud==0.4.0"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a workaround, developers can manually verify SSL certificates by implementing custom certificate verification logic in their code. This involves validating the certificate chain, checking the certificate's expiration date, and verifying the certificate's authenticity against a trusted certificate authority (CA). Here is an example of how to perform certificate verification using the requests library in Python:
import requests
def verify_ssl_certificate(url):
response = requests.get(url, verify=True)
# Add custom certificate verification logic here
return response
Conclusion
The vulnerability in Apache Libcloud prior to version 0.4.1 allows for SSL certificate verification bypass, making it vulnerable to MITM attacks. To mitigate this issue, it is crucial to upgrade to the latest version of Apache Libcloud and ensure that dependencies are updated accordingly. Additionally, developers can implement custom certificate verification logic as a temporary workaround. For further assistance and support in addressing this vulnerability, please contact DevNack.com.
See every vulnerability recorded for apache-libcloud →
FAQ
Apache Libcloud is a Python library that provides a consistent interface for managing cloud resources across different providers. It simplifies the process of interacting with various cloud services and allows developers to write code that is compatible with multiple platforms.
This vulnerability allows attackers to impersonate servers and intercept communication between clients and servers. It can lead to unauthorized access to sensitive information, data breaches, and the execution of malicious actions on the client's behalf.
To fix this vulnerability, you should upgrade to Apache Libcloud version 0.4.1 or later. Make sure to update your dependencies to use the patched version of Apache Libcloud.
Yes, you can manually verify SSL certificates in your code by implementing custom certificate verification logic. This involves checking the certificate chain, expiration date, and authenticity against a trusted CA. Refer to the provided code example for more details.
You can find more information about this vulnerability in the CVE-2010-4340 advisory and the GitHub Security Advisory GHSA-w3j6-8j34-q43x.
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