CVE-2026-64878 in Security Center
Summary
by MITRE • 07/21/2026
Unvalidated input in asset filter parameters allows shell metacharacters to escape command argument handling, resulting in remote code execution as a low-privileged OS user via the Analysis REST endpoint.
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Analysis
by VulDB Data Team • 07/21/2026
This vulnerability represents a critical command injection flaw that exploits improper input validation within asset filtering functionality of a web application's analysis rest endpoint. The root cause lies in the application's failure to properly sanitize or escape user-supplied parameters that are subsequently used in shell command constructions, creating an environment where maliciously crafted input can manipulate the underlying operating system commands. The vulnerability specifically targets the handling of filter parameters within the asset management system, where user-provided data flows directly into command execution contexts without adequate security controls.
The technical implementation of this flaw demonstrates a classic command injection vulnerability that operates at the application layer where user inputs are concatenated into shell commands without proper escaping or sanitization. When an attacker submits specially crafted filter parameters containing shell metacharacters such as semicolons, ampersands, or backticks, these characters can escape the intended command argument boundaries and execute additional malicious commands within the context of the running application process. This behavior enables attackers to leverage the low-privileged operating system user account permissions to execute arbitrary code on the target system, potentially escalating their access through subsequent exploitation techniques.
The operational impact of this vulnerability extends beyond simple remote code execution as it provides attackers with persistent access to the underlying system infrastructure. Since the exploitation occurs through a REST endpoint that likely handles legitimate analysis requests, the attack can be conducted remotely without requiring physical access or prior authentication to the application's administrative interfaces. The low-privileged user context means that while immediate system compromise may be limited, attackers can establish footholds for further reconnaissance and privilege escalation attacks. This vulnerability directly aligns with attack patterns described in the attack technique matrix under T1059.001 for command and script injection, and represents a common pathway for attackers to gain control of application servers.
The security implications of this flaw necessitate immediate remediation through comprehensive input validation and proper parameter sanitization mechanisms. Organizations should implement strict input filtering that removes or escapes potentially dangerous characters before any user-provided data is processed in shell contexts. The implementation of secure coding practices including the use of parameterized commands, input whitelisting, and proper command construction techniques can effectively prevent such vulnerabilities from being exploited. Additionally, deployment of web application firewalls and runtime monitoring systems can provide additional layers of defense against exploitation attempts while the permanent fixes are implemented.
This vulnerability type is classified as a CWE-78 (OS Command Injection) which represents one of the most dangerous categories of software flaws due to its potential for complete system compromise. The remediation strategy should focus on eliminating the root cause through proper input validation and output encoding, ensuring that all user-supplied data is treated as untrusted and properly escaped when used in system command contexts. Regular security assessments and code reviews focusing on command execution flows can help identify similar patterns across the application codebase, while implementing principle of least privilege for application processes ensures that even successful exploitation attempts cannot result in complete system compromise beyond the immediate privileges granted to the affected service account.