CVE-2024-11309: Trcore DVC Path Traversal Vulnerability

CVE-2024-11309 Overview

CVE-2024-11309 is a path traversal vulnerability in the TRCore DVC product. Unauthenticated remote attackers can exploit this flaw to read arbitrary files from the underlying system. The vulnerability is classified under [CWE-22] Improper Limitation of a Pathname to a Restricted Directory and [CWE-23] Relative Path Traversal. Successful exploitation exposes sensitive system files, configuration data, and credentials that may enable further compromise.

Critical Impact
Unauthenticated remote attackers can read arbitrary files from the TRCore DVC host, exposing system configuration, credentials, and sensitive application data.

Affected Products

TRCore DVC (all versions prior to vendor-supplied fix)
Deployments exposing the DVC web interface to untrusted networks
Installations without upstream path traversal filtering

Discovery Timeline

2024-11-18 - CVE-2024-11309 published to NVD with TW-CERT advisory references
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-11309

Vulnerability Analysis

The TRCore DVC application fails to properly validate user-supplied file path input before passing it to file system operations. Attackers can inject relative path sequences such as ../ to escape the intended base directory. The flaw requires no authentication and no user interaction, making it directly exploitable over the network.

The vulnerability impacts confidentiality only, with no direct integrity or availability impact. However, recovered files frequently contain credentials, session tokens, or configuration data that attackers can leverage for follow-on attacks. The combination of network reach and missing authentication elevates the operational risk despite the limited direct impact scope.

Root Cause

The root cause is improper sanitization of pathname components in HTTP request parameters that reference files. The application concatenates user input into a file path without canonicalization or whitelist validation. Standard traversal payloads such as ../../../../etc/passwd or Windows equivalents using ..\ succeed in escaping the application's working directory.

Attack Vector

The attack vector is network-based and requires only a crafted HTTP request to the DVC service. An attacker sends a request containing relative path sequences in a file-reference parameter. The server resolves the path outside the intended directory and returns file contents in the response.

No verified public proof-of-concept code is available for this vulnerability. Refer to the TW-CERT Security Advisory for vendor-published technical context.

Detection Methods for CVE-2024-11309

Indicators of Compromise

HTTP requests to the DVC service containing ../, ..\, or URL-encoded variants such as %2e%2e%2f in query parameters or path segments
Web server access logs showing requests for sensitive paths like /etc/passwd, /etc/shadow, web.config, or boot.ini
Unexpected outbound transfer of small text files originating from the DVC host

Detection Strategies

Deploy web application firewall (WAF) rules that flag and block relative path traversal patterns in inbound HTTP traffic
Inspect application logs for sequential file-read requests targeting common system paths
Correlate anomalous read activity on the DVC host file system with concurrent inbound HTTP connections

Monitoring Recommendations

Enable verbose HTTP request logging on the DVC service and forward logs to a centralized SIEM
Monitor for unauthenticated requests resulting in 200 responses against file-handling endpoints
Alert on access to sensitive operating system files by the DVC process account

How to Mitigate CVE-2024-11309

Immediate Actions Required

Apply the vendor patch from TRCore as referenced in the TW-CERT Security Advisory
Restrict network access to the DVC management interface using firewall rules or VPN-only access
Audit DVC host file system for evidence of unauthorized reads against credential and configuration files

Patch Information

TRCore has published advisory information through Taiwan's TW-CERT. Administrators should consult the TW-CERT Incident Report for the specific fixed version and upgrade procedure. No vendor advisory URL was published directly to NVD at the time of disclosure.

Workarounds

Place the DVC service behind a reverse proxy that normalizes and rejects requests containing path traversal sequences
Rotate any credentials, API keys, or certificates stored on the DVC host that may have been exposed
Apply least-privilege file system permissions to limit which files the DVC service account can read

bash

# Example WAF rule (ModSecurity) to block path traversal patterns
SecRule REQUEST_URI|ARGS "@rx (\.\./|\.\.\\|%2e%2e%2f|%2e%2e/)" \
    "id:1009001,phase:2,deny,status:403,\
    msg:'Path Traversal attempt blocked - CVE-2024-11309',\
    tag:'CWE-22'"