CVE-2020-15588 in Desktop Central
Summary
by MITRE
An issue was discovered in the client side of Zoho ManageEngine Desktop Central before 10.0.533. An attacker-controlled server can trigger an integer overflow via a crafted header value.
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Analysis
by VulDB Data Team • 11/06/2020
The vulnerability identified as CVE-2020-15588 affects Zoho ManageEngine Desktop Central version 10.0.533 and earlier, representing a critical security flaw in the client-side component of this desktop management solution. This issue stems from inadequate input validation mechanisms within the client application that processes header values from remote servers, creating a potential attack vector for remote code execution and system compromise. The vulnerability specifically manifests when the client application encounters crafted header values that trigger integer overflow conditions during processing, allowing malicious actors to manipulate the application's memory handling behavior.
The technical exploitation of this vulnerability involves an attacker controlling a remote server that sends specially crafted HTTP headers to a targeted client machine running Desktop Central. When the client application processes these headers, the integer overflow occurs within the application's parsing logic, potentially leading to memory corruption and arbitrary code execution. This type of vulnerability falls under CWE-190, which specifically addresses integer overflow and wraparound conditions that can result in unexpected program behavior. The integer overflow occurs when the client application attempts to process header values that exceed the maximum representable integer value for the data type being used, causing the value to wrap around to a negative or unexpected positive number.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as successful exploitation could enable attackers to execute arbitrary code with the privileges of the affected user account. This presents a significant risk for enterprise environments where Desktop Central is used for managing multiple endpoints, as a single compromised client could provide attackers with a foothold for lateral movement within the network. The vulnerability aligns with ATT&CK technique T1059.007, which covers command and scripting interpreter execution through Windows Management Instrumentation, as the compromised client could potentially be used to execute malicious commands. Organizations relying on Desktop Central for endpoint management face potential data exfiltration, system compromise, and unauthorized access to sensitive corporate resources.
Mitigation strategies for this vulnerability require immediate patching of Desktop Central installations to version 10.0.533 or later, which includes fixes for the integer overflow condition in header processing. Network administrators should implement monitoring of HTTP traffic to detect suspicious header values that may indicate exploitation attempts. Additionally, organizations should consider implementing network segmentation and access controls to limit the potential impact of a successful compromise. The vulnerability demonstrates the importance of proper input validation and integer handling in client applications, particularly those that process untrusted data from remote sources. Security teams should also conduct thorough vulnerability assessments of similar desktop management solutions and review application logs for any signs of exploitation attempts related to header processing anomalies.