CVE-2012-4595 in E-Mail Gateway
Summary
by MITRE
McAfee Email and Web Security (EWS) 5.5 through Patch 6 and 5.6 through Patch 3, and McAfee Email Gateway (MEG) 7.0.0 and 7.0.1, allows remote attackers to bypass authentication and obtain an admin session ID via unspecified vectors.
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Analysis
by VulDB Data Team • 03/27/2021
The vulnerability identified as CVE-2012-4595 represents a critical authentication bypass flaw affecting McAfee Email and Web Security (EWS) appliances and McAfee Email Gateway (MEG) systems. This vulnerability resides within the authentication mechanisms of these email security solutions, which are widely deployed in enterprise environments to protect against malicious email traffic and web-based threats. The affected versions include EWS 5.5 through Patch 6 and 5.6 through Patch 3, alongside MEG versions 7.0.0 and 7.0.1, making it a significant concern for organizations relying on these security platforms for their email infrastructure protection.
The technical nature of this vulnerability allows remote attackers to obtain administrative session IDs without proper authentication, effectively granting them full administrative privileges on the affected systems. This authentication bypass occurs through unspecified vectors that likely involve manipulation of session tokens, improper validation of authentication requests, or flawed session management mechanisms within the web interface of these security appliances. The vulnerability's classification aligns with CWE-287, which addresses improper authentication issues, and specifically relates to CWE-305, concerning authentication bypass through multiple attempts. The flaw enables attackers to escalate their privileges from regular user access to administrative control, potentially compromising the entire email security infrastructure.
The operational impact of this vulnerability is severe and far-reaching for affected organizations. Successful exploitation allows attackers to gain complete administrative control over the email security appliances, enabling them to modify security policies, view sensitive email content, bypass security controls, and potentially use the compromised systems as launch points for further attacks within the network. This vulnerability undermines the fundamental security posture of email infrastructure, as administrators lose control over their security appliances. The impact extends beyond immediate security compromise to include potential data exfiltration, unauthorized access to email communications, and the ability to manipulate email traffic flow and filtering rules. Organizations may face regulatory compliance violations and significant reputational damage if email security systems are compromised through this vulnerability.
Mitigation strategies for CVE-2012-4595 should prioritize immediate patching of affected systems with the vendor-provided security updates. Organizations must implement network segmentation to limit access to these appliances, ensuring that only authorized administrative personnel can reach the management interfaces. Additional protective measures include implementing strong network access controls, monitoring for suspicious authentication attempts, and conducting regular security assessments of email security infrastructure. The vulnerability demonstrates the importance of maintaining up-to-date security patches and implementing defense-in-depth strategies. Security teams should also consider implementing intrusion detection systems to monitor for exploitation attempts and establish incident response procedures specifically addressing authentication bypass vulnerabilities. Organizations should review their access control policies and ensure that administrative interfaces are protected through multiple layers of security including network firewalls, secure remote access solutions, and regular security audits of critical infrastructure components. The vulnerability serves as a reminder of the critical importance of maintaining current security patches and implementing robust security monitoring procedures to detect and respond to exploitation attempts against email security appliances.