CVE-2018-18074 : Exploit Details and Defense Strategies
Learn about CVE-2018-18074, a vulnerability in Python's Requests library allowing interception of sensitive credentials. Find mitigation steps and long-term security practices here.
Python's Requests library version prior to 2.20.0 has a vulnerability that allows sending an HTTP Authorization header to an http URI after a redirection from an https-to-http with the same hostname, potentially exposing sensitive credentials to malicious actors.
Understanding CVE-2018-18074
This CVE involves a security flaw in Python's Requests library that could lead to credential exposure.
What is CVE-2018-18074?
The vulnerability in Python's Requests library version prior to 2.20.0 allows malicious actors to intercept network traffic and obtain sensitive credentials by exploiting the HTTP Authorization header sent to an http URI after a redirection from an https-to-http with the same hostname.
The Impact of CVE-2018-18074
This vulnerability poses a risk of credential exposure, potentially allowing unauthorized access to sensitive information.
Technical Details of CVE-2018-18074
The technical aspects of the CVE.
Vulnerability Description
The Requests package before version 2.20.0 for Python sends an HTTP Authorization header to an http URI upon receiving a same-hostname https-to-http redirect, making it easier for remote attackers to discover credentials by sniffing the network.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Versions: Prior to 2.20.0
Exploitation Mechanism
The vulnerability can be exploited by intercepting network traffic and capturing the HTTP Authorization header sent to an http URI after a redirection from an https-to-http with the same hostname.
Mitigation and Prevention
Steps to address the CVE.
Immediate Steps to Take
- Upgrade Python's Requests library to version 2.20.0 or newer to mitigate the vulnerability.
- Monitor network traffic for any unauthorized access attempts.
Long-Term Security Practices
- Implement HTTPS for all communications to prevent interception of sensitive data.
- Regularly update and patch software to address known vulnerabilities.
Patching and Updates
- Stay informed about security advisories and updates from Python, Ubuntu, Red Hat, and other relevant sources.