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Dp300 FirmwareOperating system · Huawei

CVE-2017-17138

MEDIUM · 5.5 CVSS v3.0 Published 2018-03-05
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
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
PEM module of DP300 V500R002C00; IPS Module V500R001C00; V500R001C30; NGFW Module V500R001C00; V500R002C00; NIP6300 V500R001C00; V500R001C30; NIP6600 V500R001C00; V500R001C30; RP200 V500R002C00; V600R006C00; S12700 V200R007C00; V200R007C01; V200R008C00; V200R009C00; V200R010C00; S1700 V200R006C10; V200R009C00; V200R010C00; S2700 V200R006C10; V200R007C00; V200R008C00; V200R009C00; V200R010C00; S5700 V200R006C00; V200R007C00; V200R008C00; V200R009C00; V200R010C00; S6700 V200R008C00; V200R009C00; V200R010C00; S7700 V200R007C00; V200R008C00; V200R009C00; V200R010C00; S9700 V200R007C00; V200R007C01; V200R008C00; V200R009C00; V200R010C00; Secospace USG6300 V500R001C00; V500R001C30; Secospace USG6500 V500R001C00; V500R001C30; Secospace USG6600 V500R001C00; V500R001C30S; TE30 V100R001C02; V100R001C10; V500R002C00; V600R006C00; TE40 V500R002C00; V600R006C00; TE50 V500R002C00; V600R006C00; TE60 V100R001C01; V100R001C10; V500R002C00; V600R006C00; TP3106 V100R002C00; TP3206 V100R002C00; V100R002C10; USG9500 V500R001C00; V500R001C30; ViewPoint 9030 V100R011C02; V100R011C03 has a DoS vulnerability in PEM module of Huawei products due to insufficient verification. An authenticated local attacker can make processing into deadloop by a malicious certificate. The attacker can exploit this vulnerability to cause a denial of service.

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

A denial of service vulnerability exists in the PEM (Privacy Enhanced Mail) module of multiple Huawei products due to insufficient verification of certificate data. An authenticated local attacker can exploit this by providing a specially crafted malicious certificate that causes the certificate processing to enter an infinite deadloop, rendering the service unavailable.

MitigationApply the vendor-supplied security patches for the specific affected product versions. As a defensive measure, restrict local authenticated access to trusted personnel only and monitor for certificate processing anomalies.

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
Dp300 FirmwareOperating system
Affected:= v500r002c00
Ips Module FirmwareOperating system
Affected:= v500r001c00= v500r001c30
Ngfw Module FirmwareOperating system
Affected:= v500r001c00= v500r002c00
Nip6300 FirmwareOperating system
Affected:= v500r001c00= v500r001c30
Nip6600 FirmwareOperating system
Affected:= v500r001c00= v500r001c30
Rp200 FirmwareOperating system
Affected:= v500r002c00= v600r006c00
S12700 FirmwareOperating system
Affected:= v200r007c00= v200r007c01= v200r008c00= v200r009c00= v200r010c00
S1700 FirmwareOperating system
Affected:= v200r006c10= v200r009c00= v200r010c00

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:L/AC:L/PR:L/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 your Huawei product model
    Determine the exact model of the Huawei device (Dp300, Ips Module, Ngfw Module, Nip6300, Nip6600, Rp200, S12700, or S1700) by checking the device label, web interface, or command output such as 'display device' or 'display version'.
    Affected if The model is not one of the eight affected product lines (Dp300, Ips Module, Ngfw Module, Nip6300, Nip6600, Rp200, S12700, S1700).
  2. Retrieve the installed firmware version
    Access the device console or admin interface and run the command 'display version' or check the firmware version through the device management interface. Note the exact version string (for example, v500r002c00).
    Affected if The command output does not return a firmware version string.
  3. Compare your version against affected ranges
    Match your installed firmware version exactly to the list: Dp300 v500r002c00; Ips Module v500r001c00 or v500r001c30; Ngfw Module v500r001c00 or v500r002c00; Nip6300 v500r001c00 or v500r001c30; Nip6600 v500r001c00 or v500r001c30; Rp200 v500r002c00 or v600r006c00; S12700 v200r007c00, v200r007c01, v200r008c00, v200r009c00, or v200r010c00; S1700 v200r006c10, v200r009c00, or v200r010c00.
    Affected if Your exact firmware version matches one of the versions listed in the affected versions for your product model.
  4. Confirm PEM certificate processing is in use
    Check if the device is configured to process PEM-format certificates by reviewing the SSL/TLS or certificate-related configuration (commands such as 'display ssl policy' or checking certificate import settings).
    Affected if PEM certificate processing is not configured or used on the device.
  5. Monitor for certificate processing hangs
    Observe device responsiveness when processing certificate files. Look for symptoms such as high CPU usage, unresponsive management sessions, or service timeouts during certificate import or verification operations.
    Affected if The device exhibits hangs or unresponsiveness during certificate operations and is running an affected firmware version.

You are affected if your Huawei product model matches one of the eight affected products AND your installed firmware version exactly matches one of the listed vulnerable versions AND the PEM module is in use for certificate processing.

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 the vendor-supplied security patches for the specific affected product versions. As a defensive measure, restrict local authenticated access to trusted personnel only and monitor for certificate processing anomalies.

Fix this in Dp300 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
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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-2017-17138 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