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Ar120 S FirmwareOperating system · Huawei

CVE-2017-17301

CRITICAL · 9.8 CVSS v3.0 Published 2018-02-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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
Huawei AR120-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR1200 V200R005C20, V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, AR1200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR150 V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, AR160 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, AR200 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R008C20, AR200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR2200 V200R005C20, V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, AR2200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR3200 V200R005C32, V200R006C10, V200R006C11, V200R007C00, V200R007C01, V200R007C02, V200R008C00, V200R008C10, V200R008C20, V200R008C30, AR3600 V200R006C10, V200R007C00, V200R007C01, V200R008C20, AR510 V200R005C32, V200R006C10, V200R007C00, V200R008C20, CloudEngine 12800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00, V200R001C00, CloudEngine 5800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00, V200R001C00, CloudEngine 6800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00, V200R001C00, CloudEngine 7800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00, V200R001C00, DP300 V500R002C00, SMC2.0 V100R003C10, V100R005C00, V500R002C00, SRG1300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, SRG2300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, SRG3300 V200R005C32, V200R006C10, V200R007C00, V200R008C20, TE30 V100R001C10, TE60 V100R003C00, V500R002C00, VP9660 V200R001C02, V200R001C30, V500R002C00, ViewPoint 8660 V100R008C02, V100R008C03, eSpace IAD V300R002C01, eSpace U1981 V200R003C20, V200R003C30, eSpace USM V100R001C01, V300R001C00 have a weak cryptography vulnerability. Due to not properly some values in the certificates, an unauthenticated remote attacker could forges a specific RSA certificate and exploits the vulnerability to pass identity authentication and logs into the target device to obtain permissions configured for the specific user name.

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 confidence

Huawei AR, CloudEngine, SRG, and other products fail to properly validate RSA certificate values, allowing unauthenticated attackers to forge certificates and bypass identity authentication to gain unauthorized access with specific user permissions.

MitigationApply Huawei security patches for all affected firmware versions. Until patches are applied, restrict network access to management interfaces and monitor for unauthorized access attempts.

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
Ar120 S FirmwareOperating system
Affected:= v200r005c32= v200r006c10= v200r007c00= v200r008c20
Ar1200 FirmwareOperating system
Affected:= v200r005c20= v200r005c32= v200r006c10= v200r007c00= v200r007c01= v200r007c02= v200r008c20
Ar1200 S FirmwareOperating system
Affected:= v200r005c32= v200r006c10= v200r007c00= v200r008c20
Ar150 FirmwareOperating system
Affected:= v200r006c10= v200r007c00= v200r007c01= v200r007c02= v200r008c20
Ar160 FirmwareOperating system
Affected:= v200r005c32= v200r006c10= v200r007c00= v200r007c01= v200r007c02= v200r008c20
Ar200 FirmwareOperating system
Affected:= v200r005c32= v200r006c10= v200r007c00= v200r007c01= v200r008c20
Ar200 S FirmwareOperating system
Affected:= v200r005c32= v200r006c10= v200r007c00= v200r007c01= v200r008c20
Ar2200 FirmwareOperating system
Affected:= v200r005c20= v200r005c32= v200r006c10= v200r007c00= v200r007c01= v200r007c02= v200r008c20

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the Huawei device model
    Check the device model via console, SSH, or management interface. Common commands: display device manuinfo, display version, or check the physical label.
    Affected if The device is an AR120S, AR1200, AR1200S, AR150, AR160, AR200, AR200S, AR2200, CloudEngine, or SRG series device.
  2. Check the firmware version
    Run display version or display bootrom information to retrieve the current firmware version.
    Affected if The firmware version matches any of these: v200r005c20, v200r005c32, v200r006c10, v200r007c00, v200r007c01, v200r007c02, or v200r008c20.
  3. Determine if RSA certificate authentication is in use
    Check the authentication configuration: display authentication-mode, display user-group, or display pki realm (for PKI/certificate settings).
    Affected if The device is configured to use certificate-based authentication (such as PKI, 802.1X with certificates, or SSL VPN with RSA certificates).
  4. Review SSL/TLS service configuration
    Check for SSL-related services: display ssl policy, display server ssl status, or display http server.
    Affected if SSL services are enabled and using RSA certificates for authentication or encryption.

The environment is affected if the device is a Huawei AR, CloudEngine, or SRG product running one of the listed firmware versions AND configured to use RSA certificate-based authentication or SSL/TLS services with RSA certificates.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Huawei security patches for all affected firmware versions. Until patches are applied, restrict network access to management interfaces and monitor for unauthorized access attempts.

Fix this in Ar120 S Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation24.0 h
  • Testing16.0 h
  • Review / QA8.0 h
56.0 hours of engineering $9,760
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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-2017-17301 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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  • No spam, self-promotion, credentials, or personal data