Juniper Junos IPv6 over IPv4 Security Policy Bypass (PSN-2011-07-299)

Medium Nessus Plugin ID 55935


The remote device does not enforce security policies on tunneled IPv6 traffic.


According to its self-reported version number, the remote Juniper device is running a version of Junos with a security bypass vulnerability. When the device is configured to perform IPv6 in IPv4 tunneling, policies that apply to the encapsulated datagram are not enforced.

A remote, unauthenticated attacker could exploit this to bypass security restrictions.


Apply the relevant Junos upgrade referenced in Juniper advisory PSN-2011-07-299.

See Also

Plugin Details

Severity: Medium

ID: 55935

File Name: juniper_psn-2011-07-299.nasl

Version: $Revision: 1.10 $

Type: combined

Published: 2011/08/22

Modified: 2013/10/18

Dependencies: 55932

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/model, Host/Juniper/JUNOS/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2011/07/13

Vulnerability Publication Date: 2011/07/13

Reference Information

BID: 50705

OSVDB: 77151