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Category:   Device (Router/Bridge/Hub)  >   Juniper Junos Vendors:   Juniper
(Juniper Issues Fix for Juniper Junos) BIND TSIG Authentication Bugs Let Remote Users Bypass Authentication to Transfer or Modify Zone Conetnt
SecurityTracker Alert ID:  1041328
SecurityTracker URL:  http://securitytracker.com/id/1041328
CVE Reference:   CVE-2017-3142, CVE-2017-3143   (Links to External Site)
Date:  Jul 19 2018
Impact:   Disclosure of user information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in BIND. A remote user can bypass TSIG authentication to transfer a zone or modify zone contents. Juniper Junos is affected.

A remote user that can send and receive messages to an authoritative DNS server and with knowledge of a valid TSIG key name can send a specially crafted request packet to bypass TSIG authentication on AXFR requests and transfer the target zone [CVE-2017-3142].

A remote user that can send and receive messages to an authoritative DNS server and with knowledge of a valid TSIG key name can send specially crafted data to bypass TSIG authentication and cause the target server to accept an arbitrary dynamic update to the zone content [CVE-2017-3143].

Systems that rely solely on TSIG keys for access control are affected.

Clement Berthaux from Synacktiv reported these vulnerabilities.

Impact:   A remote user can bypass authentication to transfer a zone or modify zone contents.
Solution:   The Juniper has issued a fix (12.1X46-D76, 12.3X48-D70, 15.1X49-D140, 17.4R2 (pending release), 18.1R2, 18.2R1) for SRX Series devices.

The Juniper advisory is available at:

https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10875

Vendor URL:  kb.juniper.net/InfoCenter/index?page=content&id=JSA10875 (Links to External Site)
Cause:   Authentication error

Message History:   This archive entry is a follow-up to the message listed below.
Jun 29 2017 BIND TSIG Authentication Bugs Let Remote Users Bypass Authentication to Transfer or Modify Zone Conetnt



 Source Message Contents

Subject:  https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10875

 
 


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