CWE
200
Advisory Published
Updated

CVE-2016-6670: Infoleak

First published: Wed Sep 07 2016(Updated: )

Huawei S7700, S9300, S9700, and S12700 devices with software before V200R008C00SPC500 use random numbers with insufficient entropy to generate self-signed certificates, which makes it easier for remote attackers to discover private keys by leveraging knowledge of a certificate.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Huawei S12700 Firmware=v200r005c00
Huawei S12700 Firmware
Huawei LSW S9700 firmware=v200r003c00
Huawei LSW S9700 firmware=v200r005c00
Huawei Campus LSW S9700
Huawei Campus S7700 firmware=v200r003c00
Huawei Campus S7700 firmware=v200r005c00
Huawei Campus S7700
Huawei Campus S9300 Firmware=v200r003c00
Huawei Campus S9300 Firmware=v200r005c00
Huawei Campus S9300

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Frequently Asked Questions

  • What is the severity of CVE-2016-6670?

    CVE-2016-6670 is classified as a high severity vulnerability due to insufficient entropy in certificate generation leading to potential private key exposure.

  • How do I fix CVE-2016-6670?

    To remediate CVE-2016-6670, upgrade the firmware to version V200R008C00SPC500 or later for affected Huawei devices.

  • Which devices are affected by CVE-2016-6670?

    CVE-2016-6670 affects Huawei S7700, S9300, S9700, and S12700 devices running software versions prior to V200R008C00SPC500.

  • What is the impact of exploiting CVE-2016-6670?

    Exploitation of CVE-2016-6670 may allow remote attackers to easily discover private keys from self-signed certificates.

  • Is there a workaround for CVE-2016-6670?

    No specific workarounds are available for CVE-2016-6670; updating to the recommended firmware version is necessary.

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