CVE-2017-10613 Junos OS: A kernel hang may occur due to a specific loopback filter action command

Medium 5.5 Published Updated

An attacker with CLI access can hang the kernel by issuing a specific loopback filter command, causing a denial of service on Juniper devices.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-10613?

CVE-2017-10613 is a medium-severity denial of service vulnerability in Juniper Junos, published on 13 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in a specific loopback filter action command, processed in a specific logical order of operation, in a running configuration of Juniper Networks Junos OS, allows an attacker with CLI access and the ability to initiate remote sessions to the loopback interface with the defined action, to hang the kernel. Affected releases are Juniper Networks Junos OS 12.1X46 prior to 12.1X46-D55; 12.3X48 prior to 12.3X48-D35; 14.1 prior to 14.1R8-S4, 14.1R9; 14.1X53 prior to 14.1X53-D40; 14.2 prior to 14.2R4-S9, 14.2R7-S8, 14.2R8; 15.1 prior to 15.1F5-S3, 15.1F6, 15.1R4; 15.1X49 prior to 15.1X49-D60; 15.1X53 prior to 15.1X53-D47; 16.1 prior to 16.1R2. No other Juniper Networks products or platforms are affected by this issue.

Weakness: CWE-400

Which versions are affected by CVE-2017-10613?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2017-10613?

No fix has been published for CVE-2017-10613 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-10613 being exploited?

There is no known exploitation of CVE-2017-10613 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-f8w4-v283-r8w8.

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