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 :

http://www.nessus.org/u?22669bdd

Solution :

Apply the relevant Junos upgrade referenced in Juniper advisory
PSN-2011-07-297.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)

Family: Junos Local Security Checks

Nessus Plugin ID: 55937 ()

Bugtraq ID:

CVE ID:

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