CVE-2017-10614

Junos OS: A remote unauthenticated attacker can consume large amounts of CPU and/or memory through telnetd

Description

A vulnerability in telnetd service on Junos OS allows a remote attacker to cause a limited memory and/or CPU consumption denial of service attack. This issue was found during internal product security testing. Affected releases are Juniper Networks Junos OS 12.1X46 prior to 12.1X46-D45; 12.3X48 prior to 12.3X48-D30; 14.1 prior to 14.1R4-S9, 14.1R8; 14.2 prior to 14.2R6; 15.1 prior to 15.1F5, 15.1R3; 15.1X49 prior to 15.1X49-D40; 15.1X53 prior to 15.1X53-D232, 15.1X53-D47.

Remediation

Workaround:

  • Disable telnet services. It is good security practice to limit the exploitable attack surface of critical infrastructure networking equipment. Use access lists or firewall filters to limit access to the device from trusted, administrative networks or hosts.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.36%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA10817 mitigation vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-10614?
CVE-2017-10614 has been scored as a medium severity vulnerability.
How to fix CVE-2017-10614?
As a workaround for remediating CVE-2017-10614: Disable telnet services. It is good security practice to limit the exploitable attack surface of critical infrastructure networking equipment. Use access lists or firewall filters to limit access to the device from trusted, administrative networks or hosts.
Is CVE-2017-10614 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-10614 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.
What software or system is affected by CVE-2017-10614?
CVE-2017-10614 affects Juniper Networks Junos OS.
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