CVE-2008-5073 in ZENworks Desktop Management
Summary
by MITRE
Heap-based buffer overflow in an ActiveX control in Novell ZENworks Desktop Management 6.5 allows remote attackers to execute arbitrary code via a long argument to the CanUninstall method.
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Analysis
by VulDB Data Team • 08/22/2019
The vulnerability identified as CVE-2008-5073 represents a critical heap-based buffer overflow flaw within the ActiveX control component of Novell ZENworks Desktop Management version 6.5. This security weakness resides in the CanUninstall method of the affected ActiveX control, which fails to properly validate input parameters before processing them in memory. The vulnerability stems from inadequate bounds checking mechanisms that allow malicious actors to supply excessively long argument strings that exceed the allocated buffer space, resulting in memory corruption that can be exploited for arbitrary code execution.
The technical implementation of this vulnerability involves the exploitation of memory management flaws within the ActiveX control architecture. When a remote attacker crafts a specially formatted argument string and passes it to the CanUninstall method, the insufficient input validation causes the application to write data beyond the boundaries of the allocated heap memory region. This heap overflow condition creates opportunities for attackers to overwrite critical memory structures, potentially including return addresses, function pointers, or other control data that govern program execution flow. The vulnerability is particularly dangerous because it operates within the context of a desktop management solution, which often runs with elevated privileges and may be accessible through web-based interfaces or other remote attack vectors.
The operational impact of this vulnerability extends beyond simple code execution to encompass potential system compromise and persistent access within enterprise environments. Organizations utilizing Novell ZENworks Desktop Management 6.5 face significant risk when attackers exploit this flaw, as successful exploitation could lead to complete system compromise, data exfiltration, or the establishment of backdoors. The vulnerability's remote exploitability means that attackers do not require physical access to target systems, making it particularly concerning for enterprise networks where desktop management solutions are frequently deployed. The attack surface is further expanded when considering that ZENworks is commonly used in large organizations where desktop management systems serve as critical infrastructure components, potentially providing attackers with persistent access points throughout the network.
Security professionals should consider this vulnerability in the context of the CWE-121 heap-based buffer overflow classification, which specifically addresses buffer overflow conditions in heap memory allocation scenarios. The ATT&CK framework categorizes this type of vulnerability under the T1059.007 technique for command and scripting interpreter, as successful exploitation would likely enable attackers to execute arbitrary commands on compromised systems. Mitigation strategies should include immediate deployment of vendor patches and updates, implementation of network segmentation to limit exposure of vulnerable systems, and comprehensive monitoring for suspicious ActiveX control usage patterns. Organizations should also consider disabling unnecessary ActiveX controls in web browsers and implementing application whitelisting policies to prevent unauthorized code execution, particularly in environments where desktop management solutions are prevalent and may be targeted by sophisticated attackers seeking persistent access to enterprise networks.