Brocade Security Advisory

Brocade Security Advisory ID:

BSA-2017-315

 

Risk Impact:

High

Initial Publication Date:

May 2, 2017

 

Workaround:

Yes

Last Updated:

 

 

Component:

Management Module

Revision:

1.0: Interim

 

CVSS Score:

8.6

 

Affected CVE(s):

CVE-2016-8209

 

 

 

 

 

 

 

Summary

Improperly checks for unusual or exceptional conditions when the Management Module is continuously scanned on port 22 may allow attackers to cause a denial of service (crash and reload) of the management module.

Affected Products

Product

Current Assessment

Brocade NetIron XMR/MLX and Brocade CES/CER on NetIron

Impacted: NetIron 05.8.00 and later releases, up to and including 06.1.00. Fixed in 5.8.00fb, 5.9.00C, 6.0.00c, 6.1.00a and later releases.

Products Confirmed Not Vulnerable

No other Brocade products are currently known to be affected by this vulnerability.

Solution

Brocade has fixed the vulnerability described in this advisory in Brocade NetIron 5.8.00fb, 5.9.00C, 6.0.00c, 6.1.00a and later releases. The patch releases have been posted to the MyBrocade web portal. Brocade strongly recommends that all customers running the impacted version(s) install the patch.

Workaround

Stop any known port-scanning tools scanning SSH port 22 to the device. Restrict SSH access only to authorized users by using access-list.

To configure an ACL to permit allowed hosts, enter commands such as the following:

device(config)# access-list 12 permit host 192.168.1.1

device(config)# ssh access-group 12

device(config)# write memory

device(config)# ssh access-group 12

Revision History

Version

Change

Date

1.0

Initial Publication

May 2, 2017

 

 

 

Disclaimer

THIS DOCUMENT IS PROVIDED ON AN AS-IS BASIS SOLELY FOR INFORMATIONAL PURPOSES AND DOES NOT IMPLY ANY KIND OF GUARANTY OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. YOUR USE OF THE INFORMATION CONTAINED HEREIN IS AT YOUR OWN RISK. ALL INFORMATION PROVIDED HEREIN IS BASED ON BROCADE'S CURRENT KNOWLEDGE AND UNDERSTANDING OF THE VULNERABILITY AND IMPACT TO BROCADE HARDWARE AND SOFTWARE PRODUCTS. BROCADE RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.