NetIQ Sentinel Java Object Deserialization RCE

Critical Nessus Plugin ID 96485

Synopsis

The remote NetIQ Sentinel server is affected by a remote code execution vulnerability

Description

The remote Novell NetIQ Sentinel server is affected by a remote code execution vulnerability due to unsafe deserialize calls of unauthenticated Java objects to the BeanShell library. An unauthenticated, remote attacker can exploit this, by sending a specially crafted serialized Java object via the RMI interface, to execute arbitrary code with the privileges of the application.

Solution

Follow the resolution guideline as given in the NetIQ Sentinel advisory, as follows:

Add to /etc/opt/novell/sentinel/config/deserialization-blacklist.conf the following line:

bsh.XThis

Then restart the sentinel service.

See Also

https://www.netiq.com/support/kb/doc.php?id=7018388

http://www.nessus.org/u?e0204f30

Plugin Details

Severity: Critical

ID: 96485

File Name: netiq_sentinel_rmi_bsh_deserialization.nasl

Version: $Revision: 1.2 $

Type: remote

Family: Misc.

Published: 2017/01/13

Modified: 2017/01/17

Dependencies: 22227, 90603

Risk Information

Risk Factor: Critical

CVSSv2

Base Score: 10

Temporal Score: 7.7

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

Temporal Vector: CVSS2#E:U/RL:TF/RC:C

CVSSv3

Base Score: 9.8

Temporal Score: 8.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:T/RC:C

Vulnerability Information

CPE: cpe:/a:netiq:sentinel

Required KB Items: installed_sw/NetIQ Sentinel

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2016/12/13

Vulnerability Publication Date: 2016/12/13

Reference Information

OSVDB: 149127