CVE-2025-5158: H3C SecCenter Path Traversal Vulnerability

CVE-2025-5158 Overview

CVE-2025-5158 is a path traversal vulnerability in H3C SecCenter SMP-E1114P02 builds up to 20250513. The flaw resides in the downloadSoftware function exposed through the /cfgFile/downloadSoftware endpoint. An attacker can manipulate the filename argument to traverse directories and access files outside the intended download path. The vulnerability is exploitable remotely over the network and requires low-level privileges. A public proof-of-concept exists, and the vendor did not respond to early disclosure attempts. The weakness is classified under [CWE-22] Improper Limitation of a Pathname to a Restricted Directory.

Critical Impact

Authenticated remote attackers can read arbitrary files from the H3C SecCenter SMP-E1114P02 host by abusing the filename parameter, exposing configuration data and sensitive system files.

Affected Products

• H3C SecCenter SMP-E1114P02 builds up to 20250513
• Deployments exposing the /cfgFile/downloadSoftware endpoint
• Management interfaces accessible over the network with authenticated user accounts

Discovery Timeline

• 2025-05-25 - CVE-2025-5158 published to NVD
• 2025-06-03 - Last updated in NVD database

Technical Details for CVE-2025-5158

Vulnerability Analysis

The vulnerability exists in the downloadSoftware handler within the H3C SecCenter SMP-E1114P02 web management interface. The handler accepts a filename parameter through the /cfgFile/downloadSoftware route and passes it to file read operations without proper sanitization. Attackers can supply path traversal sequences such as ../ to escape the intended software repository directory and reach arbitrary files on the underlying filesystem. The exploit is reachable over the network and only requires a low-privileged account, making lateral file disclosure feasible from any authenticated session.

Root Cause

The root cause is missing canonicalization and validation of the filename argument. The application concatenates user-controlled input into a filesystem path used by the download routine. Because the code does not enforce a base directory check or reject directory separators and traversal sequences, the resolved path can point outside the expected location. This category of weakness maps directly to [CWE-22].

Attack Vector

The attack vector is network-based. An authenticated attacker issues an HTTP request to /cfgFile/downloadSoftware with a crafted filename value containing traversal tokens. The server returns the contents of the targeted file, which may include configuration data, credentials stored in plaintext, or system files readable by the service account. A public proof-of-concept has been disclosed, raising the likelihood of opportunistic exploitation. See the VulDB entry for CVE-2025-5158 and the Flowus technical writeup for additional context.

No verified exploit code is reproduced here. The mechanism involves a single HTTP GET request to the vulnerable endpoint with a filename parameter carrying ../ sequences to walk out of the software directory to a target file path.

Detection Methods for CVE-2025-5158

Indicators of Compromise

• HTTP requests to /cfgFile/downloadSoftware containing ../, ..\, URL-encoded %2e%2e%2f, or double-encoded traversal sequences in the filename parameter.
• Web server access logs showing repeated download requests for non-software files such as /etc/passwd, /etc/shadow, or H3C configuration files.
• Outbound file transfer events from the SecCenter host to unknown external endpoints shortly after suspicious download requests.

Detection Strategies

• Inspect web server and application logs for the filename parameter and flag any values containing path separators or traversal sequences.
• Deploy WAF or reverse proxy rules that block traversal patterns on the /cfgFile/downloadSoftware URI.
• Correlate authentication events with download activity to identify low-privileged accounts accessing unexpected files.

Monitoring Recommendations

• Forward H3C SecCenter SMP-E1114P02 web logs to a centralized SIEM and create alerts on traversal token patterns in request URIs.
• Monitor file access auditing on the SecCenter host for reads against sensitive paths by the web service account.
• Track outbound bandwidth from the management interface to detect bulk file exfiltration following successful traversal.

How to Mitigate CVE-2025-5158

Immediate Actions Required

• Restrict network access to the H3C SecCenter management interface to trusted administrative networks only.
• Audit all accounts with access to the management UI and revoke unused or shared credentials that could be abused to reach the vulnerable endpoint.
• Review existing web server logs for prior exploitation attempts against /cfgFile/downloadSoftware.

Patch Information

The vendor was contacted prior to disclosure and did not respond. No official patch from H3C is referenced in the published advisory. Affected operators should monitor the H3C support portal for updated SecCenter SMP-E1114P02 builds beyond 20250513 and apply them once available.

Workarounds

• Block requests to /cfgFile/downloadSoftware at the perimeter or WAF when the filename value contains .., /, \, or encoded equivalents.
• Place the SecCenter management interface behind a VPN and require strong multi-factor authentication for administrative access.
• Run the SecCenter service under a least-privileged account so traversal reads cannot reach sensitive system files.

# Example WAF rule blocking traversal patterns on the vulnerable endpoint
SecRule REQUEST_URI "@beginsWith /cfgFile/downloadSoftware" \
  "chain,deny,status:403,id:1005158,msg:'CVE-2025-5158 path traversal attempt'"
SecRule ARGS:filename "@rx (\.\./|\.\.\\|%2e%2e%2f|%2e%2e/|/%2e%2e)" "t:lowercase,t:urlDecodeUni"