CVE-2024-11310 Overview
CVE-2024-11310 is a path traversal vulnerability in the TRCore DVC application. The flaw allows unauthenticated remote attackers to read arbitrary files on the underlying system by manipulating file path parameters. The vulnerability is tracked under [CWE-22] (Improper Limitation of a Pathname to a Restricted Directory) and [CWE-23] (Relative Path Traversal). Taiwan CERT issued advisories documenting the issue and coordinating disclosure with the vendor.
Critical Impact
Unauthenticated remote attackers can read arbitrary system files, exposing configuration data, credentials, and sensitive application content without requiring user interaction or privileges.
Affected Products
- TRCore DVC (all versions prior to the vendor-supplied fix)
- Deployments exposing the DVC web interface to untrusted networks
- Environments where DVC processes user-supplied file path parameters
Discovery Timeline
- 2024-11-18 - CVE-2024-11310 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-11310
Vulnerability Analysis
The vulnerability resides in how TRCore DVC processes file path inputs received from HTTP requests. The application fails to validate or sanitize path components, allowing traversal sequences such as ../ to escape the intended directory. An unauthenticated attacker can craft a request that references files outside the web root.
Successful exploitation allows the attacker to retrieve arbitrary files readable by the DVC service account. Targets typically include configuration files, application source code, credentials stored on disk, and operating system files such as /etc/passwd on Linux or system configuration files on Windows.
The CVSS vector indicates network attack vector with no authentication and high confidentiality impact only. The flaw does not directly enable code execution or data modification, but disclosed credentials and configuration data often enable follow-on attacks.
Root Cause
The root cause is missing input validation on file path parameters. The application concatenates user-supplied input with a base directory without normalizing the resulting path or restricting it to an allowlisted location. Canonicalization checks that would reject .. sequences or absolute paths are absent.
Attack Vector
Attackers send crafted HTTP requests containing relative path traversal sequences in parameters that the DVC application interprets as file paths. No authentication, user interaction, or local access is required. The attack can be automated and executed at scale against internet-exposed instances.
No public proof-of-concept exploit code is currently available. Technical details are described in the TW CERT Advisory #8245 and TW CERT Advisory #8244.
Detection Methods for CVE-2024-11310
Indicators of Compromise
- HTTP request logs containing ../ or URL-encoded variants (%2e%2e%2f, ..%2f, %2e%2e/) in path or query parameters targeting DVC endpoints
- Access patterns referencing sensitive files such as /etc/passwd, /etc/shadow, web.config, or application configuration files
- Anomalous outbound responses from DVC servers containing file contents larger than typical API responses
Detection Strategies
- Inspect web server and application logs for path traversal sequences in requests to TRCore DVC URLs
- Deploy web application firewall (WAF) rules that block traversal patterns and known LFI signatures
- Correlate DVC access logs with unusual response sizes or unexpected file type returns to identify successful retrievals
Monitoring Recommendations
- Forward DVC web server access logs to a centralized SIEM or data lake for retention and analysis
- Alert on repeated 200-status responses to requests containing traversal sequences from a single source IP
- Monitor for unauthenticated requests targeting file-handling endpoints outside expected client workflows
How to Mitigate CVE-2024-11310
Immediate Actions Required
- Apply the security update from TRCore as referenced in the Taiwan CERT advisories
- Restrict network access to the DVC application using firewall rules or VPN gating until patching is complete
- Audit DVC access logs for indicators of prior exploitation and rotate any credentials that may have been exposed
- Review file system permissions for the DVC service account to limit readable files
Patch Information
TRCore has released a fixed version of DVC. Refer to the TW CERT Advisory #8245 for the vendor-supplied remediation guidance and version details. Contact TRCore directly for patch downloads if not publicly available.
Workarounds
- Place the DVC application behind a reverse proxy or WAF configured to strip or reject path traversal sequences in incoming requests
- Run the DVC service under a least-privileged account that cannot read sensitive operating system or application files
- Implement network segmentation to ensure DVC is not reachable from untrusted networks or the public internet
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
