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R310 FirmwareOperating system · Ruckuswireless

CVE-2020-22661

MEDIUM · 6.5 CVSS v3.1 Published 2023-01-20
Fix available
A fix is available. Upgrade to 3.6.2.0.795 or later.
See remediation →
74/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click Patch available

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 · unedited
In Ruckus R310 10.5.1.0.199, Ruckus R500 10.5.1.0.199, Ruckus R600 10.5.1.0.199, Ruckus T300 10.5.1.0.199, Ruckus T301n 10.5.1.0.199, Ruckus T301s 10.5.1.0.199, SmartCell Gateway 200 (SCG200) before 3.6.2.0.795, SmartZone 100 (SZ-100) before 3.6.2.0.795, SmartZone 300 (SZ300) before 3.6.2.0.795, Virtual SmartZone (vSZ) before 3.6.2.0.795, ZoneDirector 1100 9.10.2.0.130, ZoneDirector 1200 10.2.1.0.218, ZoneDirector 3000 10.2.1.0.218, ZoneDirector 5000 10.0.1.0.151, a vulnerability allows attackers to erase the backup secondary official image and write secondary backup unauthorized image.

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
How this class of weakness works · CWE-306

A sensitive function is reachable with no authentication at all, so anyone who finds the endpoint can use it. These are routinely discovered by automated scanning. The fix is to require and enforce authentication on every privileged path, with no exceptions left open.

General guidance for the missing authentication class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

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
R310 FirmwareOperating system
Affected:= 10.5.1.0.199
R500 FirmwareOperating system
Affected:= 10.5.1.0.199
R600 FirmwareOperating system
Affected:= 10.5.1.0.199
T300 FirmwareOperating system
Affected:= 10.5.1.0.199
T301n FirmwareOperating system
Affected:= 10.5.1.0.199
T301s FirmwareOperating system
Affected:= 10.5.1.0.199
Scg200 FirmwareOperating system
Affected:< 3.6.2.0.795
Sz 100 FirmwareOperating system
Affected:< 3.6.2.0.795

CVSS 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
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

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 · scoped
Upgrade available Upgrade to 3.6.2.0.795 or later
Fixed in 3.6.2.0.795
Vendor patch support.ruckuswireless.com →
Recommended fix High confidence

Firmware 3.6.2.0.795 or later for SCG200/SZ100/SZ300/vSZ; vendor patch for R310/R500/R600/T300/T301n/T301s at version 10.5.1.0.199

  1. 1. Identify all affected Ruckus devices in your environment (R310, R500, R600, T300, T301n, T301s, SCG200, SZ-100, SZ300, vSZ, ZoneDirector models).
  2. 2. Access the Ruckus Support portal at https://support.ruckuswireless.com/security_bulletins/302 to download the appropriate firmware patches.
  3. 3. For SCG200, SZ-100, SZ300, and vSZ: Upgrade firmware to version 3.6.2.0.795 or later.
  4. 4. For R310, R500, R600, T300, T301n, T301s: Apply the vendor-provided patch for version 10.5.1.0.199 as specified in the security bulletin.
  5. 5. For ZoneDirector models (1100, 1200, 3000, 5000): Apply vendor patches for respective versions mentioned in the security bulletin.
  6. 6. After upgrading, verify that the device firmware version matches the fixed release.
  7. 7. Restrict network access to management interfaces to only trusted administrative networks.
Caveat Review release notes for any configuration changes or feature modifications between affected and fixed versions before deploying in production

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-22661 in production — separate from our analysis above.

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