CVE-2012-6324 in vCenter
Summary
by MITRE
Directory traversal vulnerability in VMware vCenter Server Appliance (vCSA) 5.0 before Update 2 and 5.1 before Patch 1 allows remote authenticated users to read arbitrary files via unspecified vectors.
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Analysis
by VulDB Data Team • 06/07/2017
The vulnerability identified as CVE-2012-6324 represents a critical directory traversal flaw affecting VMware vCenter Server Appliance versions 5.0 prior to Update 2 and 5.1 prior to Patch 1. This security weakness enables remote authenticated attackers to access arbitrary files on the target system through unspecified vectors that exploit improper input validation mechanisms within the vCSA implementation. The vulnerability resides in the authentication and file access controls of the VMware vCenter Server Appliance, creating a pathway for unauthorized data extraction from the system.
This directory traversal vulnerability operates by manipulating input parameters that control file access operations within the vCenter Server Appliance's web interface or management services. Attackers can leverage this flaw to navigate beyond the intended file system boundaries and retrieve sensitive files including configuration data, credential stores, log files, and potentially system binaries. The vulnerability specifically affects the web-based management interface of the vCSA, where insufficient sanitization of user-supplied input allows malicious actors to craft requests that bypass normal access controls and traverse the file system hierarchy. The flaw demonstrates characteristics consistent with CWE-22 directory traversal vulnerabilities, where inadequate input validation permits attackers to access files outside the intended directory scope.
The operational impact of CVE-2012-6324 extends beyond simple file disclosure, as it provides attackers with access to potentially sensitive system information that could facilitate further attacks within the virtualized environment. An authenticated attacker with access to the vCSA management interface could exploit this vulnerability to extract configuration files containing database connection strings, encryption keys, and administrative credentials. This information could then be used to escalate privileges, access other systems within the virtual infrastructure, or conduct more sophisticated attacks against the VMware environment. The vulnerability also aligns with ATT&CK technique T1083 (File and Directory Discovery) and T1566 (Phishing) as attackers could use the retrieved information to craft targeted attacks against other systems. The compromised vCSA could serve as a foothold for lateral movement within the virtualized infrastructure, potentially enabling attackers to access virtual machines, data stores, and other management components.
Organizations affected by this vulnerability should immediately implement the vendor-provided patches for VMware vCenter Server Appliance 5.0 Update 2 and 5.1 Patch 1 to remediate the directory traversal issue. Security teams should also conduct comprehensive assessments of their vCenter Server environments to identify any unauthorized access attempts or suspicious activities that may have occurred during the vulnerability window. Network segmentation and access control measures should be reviewed to ensure that only authorized personnel can access vCenter Server management interfaces. Additionally, monitoring should be implemented to detect anomalous file access patterns or attempts to traverse directory structures that could indicate exploitation attempts. The vulnerability highlights the importance of maintaining up-to-date security patches for virtualization platforms and demonstrates the critical nature of input validation in web-based management interfaces. Organizations should also consider implementing additional security controls such as web application firewalls and intrusion detection systems to monitor for and prevent exploitation attempts against similar vulnerabilities in their virtualized environments.