CVE-2017-2347

Junos: Denial of Service vulnerability in rpd daemon

Description

A denial of service vulnerability in rpd daemon of Juniper Networks Junos OS allows a malformed MPLS ping packet to crash the rpd daemon if MPLS OAM is configured. Repeated crashes of the rpd daemon can result in an extended denial of service condition for the device. The affected releases are Junos OS 12.3X48 prior to 12.3X48-D50, 12.3X48-D55; 13.3 prior to 13.3R10; 14.1 prior to 14.1R4-S13, 14.1R8-S3, 14.1R9; 14.1X53 prior to 14.1X53-D42, 14.1X53-D50; 14.2 prior to 14.2R4-S8, 14.2R7-S6, 14.2R8; 15.1 prior to 15.1F2-S14, 15.1F5-S7, 15.1F6-S4, 15.1F7, 15.1R4-S7, 15.1R5-S1, 15.1R6; 15.1X49 prior to 15.1X49-D100; 15.1X53 prior to 15.1X53-D105, 15.1X53-D47, 15.1X53-D62, 15.1X53-D70; 16.1 prior to 16.1R3-S3, 16.1R4. No other Juniper Networks products or platforms are affected by this issue.

Remediation

Workaround:

  • There are no viable workarounds for this issue.
  • 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 router only from trusted, administrative networks or hosts.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.61%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1038892 vdb entry third party advisory
http://www.securityfocus.com/bid/100236 vdb entry third party advisory
https://kb.juniper.net/JSA10795 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-2347?
CVE-2017-2347 has been scored as a medium severity vulnerability.
How to fix CVE-2017-2347?
As a workaround for remediating CVE-2017-2347: There are no viable workarounds for this issue.
Is CVE-2017-2347 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-2347 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-2347?
CVE-2017-2347 affects Juniper Networks Junos OS.
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