CVE-2021-32535
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 · uneditedThe vulnerability of hard-coded default credentials in QSAN SANOS allows unauthenticated remote attackers to obtain administrator’s permission and execute arbitrary functions. The referred vulnerability has been solved with the updated version of QSAN SANOS v2.1.0.
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 · high confidenceHard-coded default credentials in QSAN SANOS allow unauthenticated remote attackers to gain administrator access and execute arbitrary functions. This is a pre-authentication vulnerability with network-exploitable remote code execution potential, rated critical due to the trivial exploitability and complete system compromise possible.
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< 2.1.0CVSS 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:3.1/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 QSAN SANOS installationLocate QSAN storage devices on the network or check network inventory for QSAN SANOS systems. Access the device management interface or check system documentation for SANOS version information.Affected if QSAN SANOS is present in the environment and the version cannot be verified or is below 2.1.0
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Verify SANOS versionAccess the device CLI or web management interface and check the SANOS firmware version. Typically found in System > About or using the 'version' command in CLI.Affected if Installed SANOS version is lower than 2.1.0 (for example, 2.0.x or earlier)
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Assess network exposure of management interfaceScan the network for open ports on the QSAN device, specifically TCP ports 443 (HTTPS) or 80 (HTTP) used for web management, and port 22 for SSH access. Determine if the interface is reachable from untrusted networks.Affected if The QSAN management interface is exposed to the internet or untrusted network segments without firewall protection
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Review access logs for unauthorized admin accessExamine the QSAN device logs, particularly authentication and admin activity logs, for any signs of unexpected administrator logins or commands from unknown IP addresses.Affected if Authentication logs show admin access from IPs that were not authorized or expected
The environment is affected if QSAN SANOS version is below 2.1.0 and the management interface is network-accessible, making the hardcoded credentials exploitable.
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.
dbcve · scoped2.1.0
Update QSAN SANOS to v2.1.0 or later to remove the hardcoded credentials. If immediate patching is not feasible, restrict network access to the management interface using firewalls or network segmentation.
QSAN SANOS v2.1.0
- Obtain the QSAN SANOS v2.1.0 update from the official QSAN vendor website or support channels
- Review the upgrade documentation provided by QSAN for SANOS
- Backup current SANOS configuration before performing the upgrade
- Follow QSAN's standard firmware/software upgrade procedure to apply SANOS v2.1.0
- After upgrade, verify the system is operational and the new version is correctly installed
- Change any default credentials that may have been hard-coded to strong, unique passwords
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-32535 — 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-2021-32535 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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