Secunia CSI7
Advisories
Research
Forums
Create Profile
Our Commitment
Database
Search
Advisories by Product
Advisories by Vendor
Terminology
Report Vulnerability
Insecure Library Loading
Less critical

djbdns DNS Cache Poisoning and DNS Record Manipulation

-

Release Date:  2009-02-18    Last Update:  2012-02-22    Views:  7,852

Secunia Advisory SA33855

Where:

From remote

Impact:

Spoofing, Manipulation of data

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


A security issue and two vulnerabilities have been reported in djbdns, which can be exploited by malicious people to conduct spoofing attacks or manipulate certain data.

1) A security issue is caused due to the dnscache server component improperly handling SOA (Start of Authority) records. This can be exploited to increase the chances for a successful DNS poisoning attack by continuously sending a large number of SOA requests and spoofed replies.

2) An error exists in tinydns and axfrdns when processing name compression encoding schemes to produce response packets. This can be exploited to return arbitrary DNS records outside of the specified zone in responses to queries for the controlled domain.

Successful exploitation of this vulnerability requires pulling records from a malicious DNS server.

3) An error exists within the dnscache resolver.

For more information:
SA47884

The security issue and the vulnerabilities are reported in version 1.05. Other versions may also be affected.


Solution:
Although no effective workaround exists, attempted blocking of SOA requests from untrusted sources may mitigate exploitation. Do not pull records from untrusted servers. Clear the DNS cache periodically or enable DNSSEC.

Provided and/or discovered by:
1) Kevin Day
2) Matthew Dempsky
3) Reported via the "Ghost Domain Names" presentation at the NDSS conference.

Original Advisory:
1) http://www.your.org/dnscache/
2) http://marc.info/?l=bugtraq&m=123575331312817&w=2
3) https://www.isc.org/files/imce/ghostdomain_camera.pdf

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: djbdns DNS Cache Poisoning and DNS Record Manipulation

No posts yet

-

You must be logged in to post a comment.



 Products Solutions Customers Partner Resources Company
 
 Corporate
Vulnerability Intelligence Manager (VIM)
Corporate Software Inspector (CSI)
Consumer
Personal Software Inspector (PSI)
Online Software Inspector (OSI)
 Industry
Compliance
Technology
Integration
 Customers
Testimonials
 VARS
MSSP
Technology Partners
References
 Factsheets
Reports
Webinars
Events
 About us
Careers
Memberships
Newsroom


 
© 2002-2014 Secunia ApS - Rued Langgaards Vej 8, 4th floor, DK-2300 Copenhagen, Denmark - +45 7020 5144
Terms & Conditions and Copyright - Privacy - Report Vulnerability