CVE-2015-3006

Junos: QFX Series: Insufficient entropy on QFX3500 and QFX3600 platforms when the system boots up

Published Feb 28, 2020 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
On the QFX3500 and QFX3600 platforms, the number of bytes collected from the RANDOM_INTERRUPT entropy source when the device boots up is insufficient, possibly leading to weak or duplicate SSH keys or self-signed SSL/TLS certificates. Entropy increases after the system has been up and running for some time, but immediately after boot, the entropy is very low. This issue only affects the QFX3500 and QFX3600 switches. No other Juniper Networks products or platforms are affected by this weak entropy vulnerability.

Remediation

Vendor Solution

The following software releases have been updated to resolve this specific issue: Junos OS 12.2X50-D70 13.1X50-D30 13.2X51-D25 13.2X51-D30 13.2X52-D15 14.1X53-D10, and all subsequent releases. It is recommended to regenerate SSH keys or self signed certificates.


Vendor Workaround

Avoid generating SSH keys or self-signed SSL certificates on the affected platforms until the system has been up and running for some time, allowing additional sources of randomness to generate sufficient entropy.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2015-3088 On the QFX3500 and QFX3600 platforms, the number of bytes collected from the RANDOM_INTERRUPT entropy source when the device boots up is insufficient, possibly leading to weak or duplicate SSH keys or self-signed SSL/TLS certificates. Entropy increases after the system has been up and running for some time, but immediately after boot, the entropy is very low. This issue only affects the QFX3500 and QFX3600 switches. No other Juniper Networks products or platforms are affected by this weak entropy vulnerability.
References
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 16, 2024, 6:19 PM
Reserved
Apr 7, 2015, 12:00 AM
Status
Modified
Published
Feb 28, 2020, 11:15 PM
Modified
Jun 17, 2026, 12:25 AM