CVE-2011-1905 in Protection Server
Summary
by MITRE
Multiple cross-site request forgery (CSRF) vulnerabilities in unspecified administrative modules in Proofpoint Messaging Security Gateway 6.2.0.263:6.2.0.237 and earlier in Proofpoint Protection Server 5.5.3, 5.5.4, 5.5.5, 6.0.2, 6.1.1, and 6.2.0 allow remote attackers to hijack the authentication of administrators via unknown vectors.
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Analysis
by VulDB Data Team • 08/05/2024
The CVE-2011-1905 vulnerability represents a critical cross-site request forgery issue affecting administrative modules within Proofpoint Messaging Security Gateway and Proofpoint Protection Server products. This vulnerability resides in the authentication handling mechanisms of these email security solutions, which are widely deployed in enterprise environments to protect against spam, malware, and other messaging threats. The affected versions span multiple release lines including Proofpoint Messaging Security Gateway 6.2.0.263:6.2.0.237 and earlier, as well as Proofpoint Protection Server versions 5.5.3, 5.5.4, 5.5.5, 6.0.2, 6.1.1, and 6.2.0, indicating a widespread issue across the product lineage. The vulnerability specifically targets the administrative interfaces of these security appliances, making it particularly dangerous as it could allow unauthorized actors to gain elevated privileges within email security infrastructure.
The technical flaw manifests as a failure in the CSRF protection mechanisms within the administrative modules of these products. Cross-site request forgery vulnerabilities occur when an application does not properly validate the origin of requests originating from authenticated sessions. In this case, the administrative interfaces lack robust anti-CSRF token validation or other protective measures that would prevent malicious actors from crafting requests that appear to originate from legitimate administrators. Attackers can exploit this weakness by tricking authenticated administrators into visiting malicious websites or clicking on compromised links that automatically submit administrative commands to the vulnerable systems. The unspecified vectors suggest that the attack could occur through various methods including social engineering campaigns, compromised email messages, or malicious web content that leverages the browser's automatic authentication with the target system.
The operational impact of CVE-2011-1905 is severe and multifaceted within enterprise email security environments. Successful exploitation could allow remote attackers to hijack administrator sessions and perform privileged actions such as modifying security policies, adding or removing users, changing system configurations, or accessing sensitive email content. This represents a significant compromise of the security infrastructure, as administrators typically have extensive privileges over the email systems they manage. The vulnerability essentially undermines the authentication security model of these products, potentially allowing attackers to establish persistent access to email security controls. Organizations relying on these systems for protecting their email communications would face risks of data exfiltration, unauthorized access to email archives, and potential use of the compromised systems as launch points for further attacks against internal networks. The impact extends beyond immediate security breaches to include potential regulatory compliance violations and reputational damage.
Organizations should implement immediate mitigations including applying the vendor-provided patches and updates that address the CSRF vulnerabilities in the affected Proofpoint products. Network segmentation and monitoring of administrative interfaces can help detect anomalous access patterns that might indicate exploitation attempts. Security teams should also implement additional protective measures such as requiring multi-factor authentication for administrative access, implementing strict access controls, and conducting regular security assessments of email security infrastructure. The vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery issues, and represents a clear violation of the principle of least privilege in web application security. From an ATT&CK framework perspective, this vulnerability maps to techniques involving privilege escalation and credential access, potentially enabling adversaries to move laterally within networks and maintain persistent access to email security controls. Regular security audits and vulnerability assessments should be conducted to ensure proper implementation of CSRF protection mechanisms in all administrative interfaces.