Description: If RxHttp is not configured to enforce HTTPS, or if the application allows for fallback to HTTP, an attacker could perform a downgrade attack. By intercepting the initial connection attempt, the attacker can prevent the upgrade to HTTPS and force the application to communicate over insecure HTTP. This allows the attacker to eavesdrop on all data transmitted through RxHttp, including sensitive information.
Impact: Confidentiality breach, complete interception of data transmitted via RxHttp, potential for data manipulation in transit.
RxHttp Component Affected: RxHttp's network request configuration, specifically how it utilizes OkHttp for connection setup.
Risk Severity: High
Mitigation Strategies:
- Enforce HTTPS in RxHttp Configuration: Configure RxHttp and the underlying OkHttp client to strictly use HTTPS for all network requests to sensitive endpoints. Ensure no fallback to HTTP is permitted.
- Review RxHttp Request Building: Carefully review all places where RxHttp requests are built in the application code to ensure HTTPS is explicitly specified in the URL scheme and no accidental HTTP URLs are used for sensitive data.
- Implement HSTS on Server: While not directly RxHttp mitigation, implementing HTTP Strict Transport Security (HSTS) on the server side will instruct compliant browsers and HTTP clients (like OkHttp used by RxHttp) to always use HTTPS for future connections, further reducing the risk of downgrade attacks.
Description: RxHttp relies on OkHttp for handling TLS/SSL connections. If the OkHttp client used by RxHttp is misconfigured with weak TLS settings (e.g., outdated TLS versions, weak cipher suites, disabled certificate validation - though highly discouraged), the HTTPS connections established by RxHttp can be vulnerable. An attacker could exploit these weaknesses to decrypt communication or perform man-in-the-middle attacks even when HTTPS is used.
Impact: Confidentiality breach, potential data interception and decryption, server impersonation, weakened security posture for all RxHttp network communication.
RxHttp Component Affected: RxHttp's underlying OkHttp client configuration, specifically TLS/SSL settings.
Risk Severity: High
Mitigation Strategies:
- Configure Secure TLS Settings in OkHttp Client: When creating the OkHttp client used by RxHttp, explicitly configure it to use strong TLS versions (TLS 1.2 or higher) and secure cipher suites. Disable support for outdated or weak protocols and ciphers.
- Ensure Certificate Validation is Enabled: Verify that certificate validation is enabled and functioning correctly in the OkHttp client configuration used by RxHttp. Never disable certificate validation in production environments.
- Regularly Update OkHttp and RxHttp: Keep both RxHttp and its dependency OkHttp updated to the latest versions. Updates often include security patches and improvements to TLS/SSL handling.
Description: Like any software library, RxHttp itself might contain undiscovered security vulnerabilities in its code. If a vulnerability exists and is exploitable, an attacker could potentially leverage it to compromise the application using RxHttp. The impact could range from denial of service to remote code execution, depending on the nature of the vulnerability.
Impact: Potentially critical impact, including remote code execution, denial of service, data breaches, depending on the specific vulnerability.
RxHttp Component Affected: Core RxHttp library code.
Risk Severity: Critical (potential for remote code execution vulnerabilities).
Mitigation Strategies:
- Stay Updated with RxHttp Releases: Actively monitor the RxHttp GitHub repository for new releases and security advisories. Update to the latest stable version of RxHttp promptly to benefit from bug fixes and security patches.
- Monitor Security Advisories: Subscribe to or regularly check for security advisories related to RxHttp and its dependencies.
- Dependency Scanning: Incorporate dependency scanning tools into the development process to automatically detect known vulnerabilities in RxHttp and its dependencies.
- Code Reviews and Security Audits: Conduct regular code reviews and security audits of the application, paying attention to how RxHttp is used and integrated, to identify potential vulnerabilities or misconfigurations.
Description: RxHttp heavily relies on OkHttp for its network operations. OkHttp, in turn, is a complex library and might have its own vulnerabilities. If a critical vulnerability is discovered in OkHttp, applications using RxHttp are indirectly vulnerable. An attacker could exploit these OkHttp vulnerabilities through the application's use of RxHttp.
Impact: Potentially critical impact, as OkHttp is fundamental to network communication. Vulnerabilities could lead to remote code execution, denial of service, or other severe security breaches.
RxHttp Component Affected: Indirectly affects RxHttp through its dependency on OkHttp.
Risk Severity: Critical (due to the critical nature of network communication and potential severity of OkHttp vulnerabilities).
Mitigation Strategies:
- Keep OkHttp Updated: Ensure that the version of OkHttp used by RxHttp is always updated to the latest stable version. Monitor OkHttp releases and security advisories closely.
- RxHttp Updates and Dependency Management: When updating RxHttp, pay attention to the versions of its dependencies, especially OkHttp, that are being pulled in. Ensure that updates include the latest secure versions of dependencies.
- Dependency Scanning (including transitive dependencies): Use dependency scanning tools that can analyze the entire dependency tree, including transitive dependencies like OkHttp, to identify vulnerabilities.
- Follow OkHttp Security Best Practices: Be aware of and follow security best practices recommended by the OkHttp project, as these indirectly apply to applications using RxHttp.