CVE-2008-0638 in Veritas Storage Foundation
Summary
by MITRE
Heap-based buffer overflow in the Veritas Enterprise Administrator (VEA) service (aka vxsvc.exe) in Symantec Veritas Storage Foundation 5.0 allows remote attackers to execute arbitrary code via a packet with a crafted value of a certain size field, which is not checked for consistency with the actual buffer size.
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Analysis
by VulDB Data Team • 08/11/2019
The vulnerability identified as CVE-2008-0638 represents a critical heap-based buffer overflow in Symantec Veritas Storage Foundation 5.0's Veritas Enterprise Administrator service component. This flaw exists within the vxsvc.exe process which serves as the core administrative service for managing veritas storage environments. The vulnerability specifically affects the protocol handling mechanism where certain size fields in network packets are not properly validated against actual buffer dimensions, creating a pathway for malicious exploitation.
The technical implementation of this vulnerability stems from inadequate input validation within the network communication layer of the VEA service. When the vxsvc.exe process receives network packets containing size fields that do not correspond to the actual buffer capacity, the service fails to perform proper bounds checking. This allows attackers to craft malicious packets with oversized size values that cause the heap memory allocation to overflow, potentially overwriting adjacent memory regions including function pointers, return addresses, or other critical control data structures. The heap-based nature of this overflow provides attackers with significant flexibility in memory corruption patterns compared to stack-based equivalents.
Operationally, this vulnerability presents a severe risk to organizations utilizing Symantec Veritas Storage Foundation 5.0 as it enables remote code execution without requiring authentication. Attackers can exploit this weakness from any network location to compromise systems running the vulnerable service, making it particularly dangerous for enterprise environments where storage management services are exposed to untrusted networks. The impact extends beyond simple privilege escalation as successful exploitation can lead to complete system compromise, data exfiltration, and persistence mechanisms within the storage infrastructure. Organizations with distributed storage environments or those using remote management capabilities are particularly vulnerable to this attack vector.
The vulnerability aligns with CWE-121, heap-based buffer overflow, and represents a classic example of insufficient input validation in network services. From an attack framework perspective, this weakness maps to multiple ATT&CK techniques including T1190 for exploit public-facing application and T1059 for command and control communication. The remediation approach requires immediate patching of the Veritas Storage Foundation 5.0 components to address the buffer overflow in vxsvc.exe service. Organizations should also implement network segmentation to limit exposure of the VEA service to trusted networks only, disable unnecessary administrative services, and deploy intrusion detection systems to monitor for suspicious network traffic patterns. Additionally, regular security assessments of storage management components and maintaining updated security patches for all veritas products are essential defensive measures to prevent exploitation of similar vulnerabilities in the storage infrastructure ecosystem.