dbcve.org
Ar120 S FirmwareOperating system · Huawei

CVE-2017-17160

MEDIUM · 5.9 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 →
68/100
Remediation priority · Elevated
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 V200R006C10, V200R007C00, AR1200 V200R006C10, V200R006C13, V200R007C00, V200R007C02, AR1200-S V200R006C10, V200R007C00, V200R008C20, AR150 V200R006C10, V200R007C00, V200R007C02, AR150-S V200R006C10, V200R007C00, AR160 V200R006C10, V200R006C12, V200R007C00, V200R007C02, AR200 V200R006C10, V200R007C00, AR200-S V200R006C10, V200R007C00, AR2200 V200R006C10, V200R006C13, V200R006C16PWE, V200R007C00, V200R007C02, AR2200-S V200R006C10, V200R007C00, V200R008C20, AR3200 V200R006C10, V200R006C11, V200R007C00, V200R007C02, AR3600 V200R006C10, V200R007C00, AR510 V200R006C12, V200R006C13, V200R006C15, V200R006C16, V200R006C17, V200R007C00, NetEngine16EX V200R006C10, V200R007C00, SRG1300 V200R006C10, V200R007C00, V200R007C02, SRG2300 V200R006C10, V200R007C00, V200R007C02, SRG3300 V200R006C10, V200R007C00 have a buffer overflow vulnerability due to incomplete range checks of the input data. An unauthenticated, remote attacker could exploit this vulnerability by sending malicious IKE packets to the targeted device. An exploit could allow the attacker to cause the device to write out of bound and restart.

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

Buffer overflow vulnerability in Huawei AR, NetEngine, and SRG series routers due to incomplete range checks on IKE packet input data. An unauthenticated remote attacker can send malicious IKE packets to cause an out-of-bounds write, resulting in device restart (Denial of Service). The vulnerability affects multiple product lines across numerous firmware versions.

MitigationApply Huawei firmware updates for the specific affected versions listed. Until patched, consider restricting IKE traffic at network boundaries using firewalls or ACLs to prevent untrusted external sources from reaching the vulnerability.

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:= v200r006c10= v200r007c00
Ar1200 FirmwareOperating system
Affected:= v200r006c10= v200r006c13= v200r007c00= v200r007c02
Ar1200 S FirmwareOperating system
Affected:= v200r006c10= v200r007c00= v200r008c20
Ar150 FirmwareOperating system
Affected:= v200r006c10= v200r007c00= v200r007c02
Ar150 S FirmwareOperating system
Affected:= v200r006c10= v200r007c00
Ar160 FirmwareOperating system
Affected:= v200r006c10= v200r006c12= v200r007c00= v200r007c02
Ar200 FirmwareOperating system
Affected:= v200r006c10= v200r007c00
Ar200 S FirmwareOperating system
Affected:= v200r006c10= v200r007c00

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
High
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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 device model
    Run 'display device' or check the physical device label to confirm it is a Huawei AR, NetEngine, or SRG series router.
    Affected if The device is NOT one of these series - the vulnerability does not apply.
  2. Check the firmware version
    Run 'display version' to obtain the current firmware version. Compare the version string exactly against the affected versions: v200r006c10, v200r006c12, v200r006c13, v200r007c00, v200r007c02, v200r008c20.
    Affected if The firmware version matches one of these exact versions - the device falls within the affected range.
  3. Verify IKE is enabled
    Run 'display ike sa' or 'display ike proposal' to check if IKE (Internet Key Exchange) is configured and active on the device.
    Affected if IKE is NOT configured or active - the vulnerability cannot be triggered as the attack requires sending malicious IKE packets to the device.
  4. Check IKE peer configuration
    Run 'display ike peer' to list configured IKE peers. An unauthenticated attacker can send packets to any exposed IKE gateway.
    Affected if IKE peers are configured and reachable from untrusted networks - the device is directly exposed to the attack vector.

The device is affected if it is a Huawei AR/NetEngine/SRG series running one of the listed firmware versions AND has IKE enabled and accessible to untrusted network traffic.

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 firmware updates for the specific affected versions listed. Until patched, consider restricting IKE traffic at network boundaries using firewalls or ACLs to prevent untrusted external sources from reaching the vulnerability.

Fix this in Ar120 S Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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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-2017-17160 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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data