CVE-2023-50481 in blinksocks
Summary
by MITRE • 12/21/2023
An issue was discovered in blinksocks version 3.3.8, allows remote attackers to obtain sensitive information via weak encryption algorithms in the component /presets/ssr-auth-chain.js.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 01/14/2024
The vulnerability identified as CVE-2023-50481 affects blinksocks version 3.3.8 and represents a significant security weakness in the encryption implementation of the software. This issue resides within the /presets/ssr-auth-chain.js component which handles authentication and encryption processes for the system. The vulnerability stems from the use of weak encryption algorithms that fail to provide adequate protection for sensitive data transmission and authentication mechanisms. Attackers can exploit this weakness to obtain confidential information that should remain protected within the system's communication channels.
The technical flaw manifests through the implementation of deprecated or insufficiently strong cryptographic primitives within the SSR authentication chain functionality. This weakness allows adversaries to potentially intercept and decrypt communications between client and server components, thereby gaining access to authentication tokens, user credentials, or other sensitive data that flows through the affected system. The vulnerability specifically targets the encryption algorithms used during the authentication handshake process, which is a critical security control in proxy and tunneling systems like blinksocks.
The operational impact of this vulnerability extends beyond simple information disclosure, as it fundamentally undermines the security posture of systems relying on blinksocks for network connectivity and data protection. Remote attackers can leverage this weakness to perform man-in-the-middle attacks, capture authentication credentials, or gain unauthorized access to protected resources. The affected environment becomes vulnerable to various attack vectors that exploit the weak encryption to escalate privileges or establish persistent access to network resources. This vulnerability particularly affects organizations that depend on secure proxy configurations and require strong encryption for their network communications.
Security professionals should prioritize immediate remediation of this vulnerability by upgrading to a patched version of blinksocks that implements strong encryption algorithms and follows current cryptographic best practices. The mitigation strategy should include replacing the vulnerable encryption components with industry-standard implementations that comply with NIST guidelines and other relevant security frameworks. Organizations should also conduct thorough security assessments to identify any potential exploitation attempts and implement network monitoring to detect suspicious activities related to the affected authentication mechanisms. Additionally, system administrators should review and update their cryptographic configurations to ensure that all encryption components meet current security requirements and align with established security standards such as those defined in CWE categories related to weak cryptography and information exposure.