CVE-2026-102257 in SMA1000
Summary
by MITRE • 10/07/2026
A Zip Slip vulnerability in the in the SMA1000 Appliance Management Console (AMC) interface allows an attacker to extract files outside the intended destination directory using a specially crafted archive, resulting in remote code execution.
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Analysis
by VulDB Data Team • 10/07/2026
The SMA1000 Appliance Management Console contains a critical Zip Slip vulnerability that stems from insufficient validation of file paths within archived content during extraction operations. This flaw allows an attacker to manipulate the internal structure of a ZIP archive by including entries with relative path traversal sequences, such as dot-dot-slash characters, in their filenames. When the management console processes these archives without properly sanitizing or resolving the absolute paths before writing them to disk, it fails to enforce directory boundaries. Consequently, files are written outside the intended target directory and into arbitrary locations on the file system where the application process has write permissions. This specific class of issue is formally categorized under CWE-22 as Improper Limitation of a Pathname to a Restricted Directory, highlighting the failure to restrict input-driven path resolution to an expected root folder.
The operational impact of this vulnerability is severe because it directly facilitates remote code execution without requiring authentication in many configurations or by leveraging existing low-level access credentials if present. By overwriting critical configuration files, library binaries, or script handlers within the web server's document root or application directory structure, an attacker can inject malicious payloads that are subsequently executed by the system. This capability effectively grants full control over the underlying operating environment of the appliance. The attack vector is remote and network-based, allowing adversaries to exploit this weakness from any reachable IP address on the same subnet or across routed networks if exposed. In terms of threat modeling, this aligns with MITRE ATT&CK techniques related to Command and Scripting Interpreter abuse and Defense Evasion through file manipulation, as it enables persistent access and lateral movement within the network infrastructure hosting the appliance.
Mitigation strategies must prioritize immediate patching by applying vendor-provided updates that address the path validation logic in the extraction routine. Until patches are applied, administrators should restrict network access to the management console interface using strict firewall rules or VPN-only connectivity to limit exposure to untrusted networks. Additionally, implementing file integrity monitoring on critical directories can help detect unauthorized modifications resulting from exploitation attempts. It is also advisable to run the application process with minimal privileges, ensuring that even if an attacker achieves code execution via this vulnerability, their ability to modify system-critical files or escalate privileges remains constrained by operating system security boundaries. Regular auditing of archive upload functionality and enforcing strict file type whitelisting further reduces the attack surface associated with such input validation flaws.