CVE-2012-0407 in Data Protection Advisor
Summary
by MITRE
Integer overflow in the DPA_Utilities library in EMC Data Protection Advisor (DPA) 5.5 through 5.8 SP1 allows remote attackers to cause a denial of service (infinite loop) via a negative 64-bit value in a certain size field.
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Analysis
by VulDB Data Team • 07/23/2024
The vulnerability identified as CVE-2012-0407 represents a critical integer overflow flaw within the DPA_Utilities library component of EMC Data Protection Advisor versions 5.5 through 5.8 SP1. This issue manifests when the system processes a 64-bit value in a size field that is negative, creating conditions that can lead to system instability and denial of service. The vulnerability specifically targets the handling of integer values during data processing operations, where the system fails to properly validate or sanitize input parameters before performing arithmetic operations. This flaw exists in the data protection and backup management software that organizations rely upon for critical data recovery operations, making it particularly concerning for enterprise environments that depend on consistent system availability. The integer overflow occurs at the boundary between signed and unsigned integer representations, where negative values are not properly handled in the context of size calculations that are fundamental to data processing workflows.
The technical implementation of this vulnerability stems from improper input validation within the DPA_Utilities library where a size field parameter is expected to contain a positive 64-bit integer value. When a negative value is passed, the system's arithmetic operations overflow the integer boundaries, causing the processing loop to execute indefinitely or until system resources are exhausted. This behavior creates an infinite loop condition that consumes CPU cycles and memory resources, effectively rendering the affected system unresponsive to legitimate requests. The flaw is classified as a CWE-191 Integer Underflow (Wrap or Wraparound) which is a well-documented category of vulnerabilities where integer arithmetic results in values that fall below the minimum representable value for the data type. The vulnerability's remote exploitability means that attackers can trigger the condition without requiring local access, making it particularly dangerous in networked environments where the DPA service is exposed to external networks.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as it can severely disrupt backup and recovery operations that organizations depend upon for business continuity. When the infinite loop occurs, it can cause cascading failures throughout the data protection infrastructure, potentially affecting multiple systems that rely on the DPA service for their operations. The vulnerability affects organizations using EMC Data Protection Advisor in production environments, where continuous data protection is critical for disaster recovery planning and regulatory compliance requirements. The denial of service condition can persist for extended periods, during which backup operations may fail or become unavailable, leading to potential data loss scenarios or extended recovery times. Additionally, the vulnerability can be exploited to consume system resources, potentially causing memory exhaustion or CPU starvation that affects other applications running on the same infrastructure. Organizations with large data sets or those running high-volume backup operations are particularly vulnerable to this type of attack, as the processing time required to trigger the infinite loop is significantly reduced.
Organizations affected by CVE-2012-0407 should implement immediate mitigations including applying the vendor-provided patches and updates that address the integer overflow condition in the DPA_Utilities library. Network segmentation and access controls should be implemented to limit exposure of the DPA service to untrusted networks, reducing the attack surface for remote exploitation attempts. Monitoring systems should be configured to detect unusual resource consumption patterns or service disruptions that may indicate exploitation attempts. The implementation of input validation controls and bounds checking within the application code can provide additional defense-in-depth measures against similar vulnerabilities. Security teams should also consider implementing intrusion detection systems that can identify malformed data packets targeting the specific size field parameters that trigger the vulnerability. Regular vulnerability assessments and penetration testing should be conducted to identify potential integer overflow conditions in other components of the data protection infrastructure, as this represents a class of vulnerability that can affect multiple systems within an organization's data protection ecosystem. The ATT&CK framework categorizes this vulnerability under the T1499 technique for Network Denial of Service, highlighting the importance of maintaining resilient backup and recovery systems that can withstand such attacks.