CVE-2015-3006

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

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

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.

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory juniper.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA10678 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-3006?
CVE-2015-3006 has been scored as a medium severity vulnerability.
How to fix CVE-2015-3006?
To fix CVE-2015-3006: 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.
Is CVE-2015-3006 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-3006 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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