CVE-2019-9161
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedWAC on the Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier has a Remote Code Execution issue allowing remote attackers to achieve full access to the system, because shell metacharacters in the nginx_webconsole.php Cookie header can be used to read an etc/config/wac/wns_cfg_admin_detail.xml file containing the admin password. (The password for root is the WebUI admin password concatenated with a static string.)
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceRemote code execution vulnerability in Sangfor Sundray WLAN Controller v3.7.4.2 and earlier allows attackers to inject shell metacharacters through the Cookie header in nginx_webconsole.php to read admin credentials from etc/config/wac/wns_cfg_admin_detail.xml, where the root password is derived from the admin password concatenated with a static string.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 3.7.4.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the firmware versionAccess the device admin interface or check the system information page, typically found under 'System Settings' or 'About' in the WLAN Controller web management console. Alternatively, check the firmware file name or banner displayed on the login page.Affected if The displayed firmware version is 3.7.4.2 or any version number lower than 3.7.4.2 (e.g., 3.7.4.1, 3.7.3.0, etc.)
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Confirm the product is Sangfor Sundray or Xinruidz SundrayVerify the vendor and product name in the login page header, footer, or 'About' section. The vulnerability affects both Sangfor Sundray WLAN Controller and Xinruidz Sundray Wan Controller product lines.Affected if The product is identified as Sangfor Sundray WLAN Controller or Xinruidz Sundray Wan Controller running the affected firmware version.
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Check for nginx_webconsole.php accessibilityAttempt to access the URI '/nginx_webconsole.php' on the device's management interface using a web browser or curl command.Affected if The file nginx_webconsole.php responds to requests, indicating the vulnerable component is present on the system.
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Verify credential storage file existsCheck if the file path 'etc/config/wac/wns_cfg_admin_detail.xml' exists on the device filesystem or is accessible through the web interface.Affected if The configuration file containing admin credentials exists at the specified path, confirming the vulnerable configuration that stores derived passwords is present.
You are affected if your Sangfor Sundray or Xinruidz Sundray WLAN Controller runs firmware version 3.7.4.2 or earlier and the nginx_webconsole.php endpoint is accessible on your network.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade to a patched version of the Sangfor Sundray WLAN Controller. If no patch is available, restrict network access to the management interface and implement WAF rules to sanitize cookie header inputs.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-9161 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-9161 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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