Juniper Junos ICMP Ping 'composite next-hop' Remote DoS (PSN-2011-07-297)

This script is Copyright (C) 2011-2013 Tenable Network Security, Inc.

Synopsis :

The remote router has a denial of service vulnerability.

Description :

According to its self-reported version number, the remote Juniper
router is running a version of Junos that is affected by a
denial of service vulnerability. Sending an ICMP ping with
the record-route or timestamp options can crash an L3VPN PE
router with either of the following configurations :

- Point-to-Multipoint LSPs that are used as next hops
in configuration of static routes to customers' networks

- The 'l3vpn-composite-nexthop' and 'indirect-next-hop'
routing-options are enabled

A remote, unauthenticated attacker could exploit this to crash
the router.

See also :

Solution :

Apply the relevant Junos upgrade referenced in Juniper advisory

Risk factor :

High / CVSS Base Score : 7.8

Family: Junos Local Security Checks

Nessus Plugin ID: 55937 ()

Bugtraq ID:


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