CVE-2020-5830 in Endpoint Protection
Summary
by MITRE
Symantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.
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Analysis
by VulDB Data Team • 02/12/2020
Symantec Endpoint Protection Manager version 14.2 RU2 MP1 and earlier contains a critical out-of-bounds memory access vulnerability that represents a significant security risk for enterprise environments. This vulnerability falls under the common weakness enumeration CWE-125 which specifically addresses reading memory outside the bounds of allocated buffers. The flaw manifests when the SEPM application processes certain input data structures that trigger improper memory boundary checks during normal operational procedures. The affected system operates as a centralized security management platform that typically runs on Windows servers and manages endpoint protection policies across large enterprise networks, making it a prime target for exploitation.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the SEPM's memory management routines. When processing specific network requests or configuration updates, the application fails to properly validate array indices or buffer sizes before accessing memory locations. This allows an attacker to craft malicious payloads that cause the application to read or write beyond allocated memory boundaries, potentially leading to arbitrary code execution or denial of service conditions. The vulnerability is particularly concerning because SEPM typically runs with elevated privileges and maintains access to sensitive network and endpoint data, creating a high-value target for attackers seeking persistent access to enterprise environments.
The operational impact of this vulnerability extends beyond simple memory corruption issues, as it can be exploited to gain unauthorized access to critical security infrastructure. Attackers could leverage this weakness to execute malicious code on the SEPM server, potentially compromising the entire endpoint protection ecosystem. The vulnerability affects the core management functionality of SEPM, which means that successful exploitation could result in complete loss of endpoint protection capabilities, allowing attackers to bypass security controls and move laterally within the network. This aligns with tactics described in the attack pattern taxonomy under techniques related to privilege escalation and persistence within enterprise security infrastructure.
Organizations running affected SEPM versions should immediately implement mitigations including applying the vendor-provided patches that address the specific memory boundary validation issues. The recommended remediation involves upgrading to SEPM 14.2 RU2 MP1 or later versions where the buffer overflow protections have been properly implemented. Network segmentation and access controls should be reinforced around SEPM servers to limit potential exploitation paths, while monitoring systems should be configured to detect anomalous behavior patterns that might indicate exploitation attempts. Security teams should also conduct thorough assessments of their endpoint protection configurations to ensure that no unauthorized changes have occurred since the vulnerability was first reported, as this type of memory corruption vulnerability often serves as a stepping stone for more sophisticated attacks targeting enterprise security infrastructure.