CVE-2005-2245 in BIG-IP
Summary
by MITRE
Unknown vulnerability in F5 BIG-IP 9.0.2 through 9.1 allows attackers to "subvert the authentication of SSL transactions," via unknown attack vectors, possibly involving NATIVE ciphers.
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Analysis
by VulDB Data Team • 07/03/2019
The vulnerability identified as CVE-2005-2245 represents a critical authentication flaw within the F5 BIG-IP 9.0.2 through 9.1 product line that fundamentally undermines the security of SSL transactions. This issue affects organizations relying on F5's application delivery controllers for secure web communications, creating potential entry points for malicious actors to bypass authentication mechanisms and gain unauthorized access to protected resources. The vulnerability specifically targets the SSL transaction authentication process, which forms the backbone of secure internet communications for countless enterprises and service providers.
The technical nature of this vulnerability involves the subversion of SSL authentication mechanisms through unspecified attack vectors that may leverage NATIVE ciphers, suggesting exploitation of cryptographic weaknesses or implementation flaws within the SSL processing stack. This type of vulnerability falls under the broader category of cryptographic failures and represents a significant weakness in the security architecture of the affected F5 appliances. The use of NATIVE ciphers in the attack vector indicates that the flaw may be related to how the system handles specific cryptographic algorithms or cipher suites during the SSL handshake process, potentially allowing attackers to manipulate or bypass the authentication flow without proper credentials or certificates.
From an operational perspective, this vulnerability creates substantial risk for organizations using F5 BIG-IP appliances in production environments, particularly those handling sensitive data or providing critical web services. Attackers who successfully exploit this flaw could potentially intercept, modify, or redirect SSL-encrypted traffic, undermining the confidentiality and integrity guarantees that SSL/TLS protocols are designed to provide. The impact extends beyond simple data theft to include potential man-in-the-middle attacks, session hijacking, and unauthorized access to backend systems that depend on SSL authentication for security. Organizations with compliance requirements under standards such as pci dss or hipaa face particularly severe consequences from such vulnerabilities, as they represent direct violations of security controls and monitoring requirements.
Security professionals should consider this vulnerability in the context of the attack chain and potential exploitation patterns. The vulnerability aligns with tactics described in the attack pattern taxonomy, particularly those involving credential harvesting and authentication bypass techniques. Organizations should implement immediate mitigation strategies including applying the latest security patches from F5, reviewing SSL configuration settings, and monitoring network traffic for signs of exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security controls and the potential for legacy systems to harbor critical weaknesses that can be exploited by determined attackers. Network segmentation and additional monitoring controls should be implemented to detect and prevent exploitation attempts while patches are being deployed.
This vulnerability represents a classic example of how cryptographic implementation flaws can create severe security weaknesses in enterprise security infrastructure. The fact that it affects multiple versions within the 9.0.2 through 9.1 release line indicates a systemic issue rather than an isolated incident, requiring comprehensive remediation across affected systems. Organizations should also consider the broader implications for their security posture, including potential impact on certificate trust relationships and the need for enhanced monitoring of SSL-related activities. The vulnerability serves as a reminder of the critical importance of thorough security testing and validation of cryptographic implementations in enterprise security solutions, particularly those handling sensitive data and providing core network services to organizations.