A path traversal vulnerability in eKuiper's administrative management endpoints allows privileged users or attackers with access to management APIs to delete arbitrary files or directories on the host system.
In internal/plugin/native/manager.go, the plugin installation endpoint (POST /plugins/*) constructs a temporary directory path by directly joining user-supplied resource names (name) without sufficient sanitization. Supplying path traversal sequences (such as ../../...) causes the deferred cleanup operation (os.RemoveAll) to target arbitrary directories outside the intended plugin directory.
A related issue in configuration and rule lifecycle management where unvalidated rule identifiers could influence file deletion paths was also addressed by introducing unified identifier and file name validation.
POST /plugins/sources HTTP/1.1
Host: 127.0.0.1:9081
Content-Type: application/json
{
"name": "../../../../../tmp/target.txt",
"file": "http://example.com/plugin.zip",
"shellParas": [],
"functions": []
}
/tmp/target.txt is removed by os.RemoveAll.An attacker with access to eKuiper management APIs can cause arbitrary file or directory deletion, potentially leading to denial of service or disruption of the host environment. This vulnerability provides a delete-only capability and does not permit arbitrary file creation, modification, or code execution.
validate.ValidateID) and file path validation (path.VerifyFileName) have been enforced across management endpoints.9081) via authentication, reverse proxies, and firewall rules.A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.
CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.
A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.
Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.
Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.
SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.