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

w3m "Referer" Weakness and SSL Certificate Processing Vulnerability

-

Release Date:  2010-06-15    Last Update:  2011-01-24    Views:  4,121

Secunia Advisory SA40134

Where:

From remote

Impact:

Spoofing, Exposure of sensitive information

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


A weakness and a vulnerability have been reported in w3m, which can be exploited by malicious people to gain access to potentially sensitive information and conduct spoofing attacks.

1) The vulnerability is caused due to an error when processing SSL certificates containing NULL ('\0') characters embedded in certain certificate fields and can be exploited to spoof certificates for legitimate domains.

This is related to vulnerability #2 in:
SA36093

2) The weakness is caused due to the application sending the "Referer" HTTP header to HTTP sites when coming from HTTPS sites, which can be exploited to disclose potentially sensitive information contained in the HTTPS URL by reading the "Referer" header.

The weakness and the vulnerability are reported in version 0.5.2. Other versions may also be affected.


Solution:
Update to version 0.5.3.

Provided and/or discovered by:
1) Originally independently discovered by Dan Kaminsky and Moxie Marlinspike. Reported in w3m by Ludwig Nussel, SUSE.
2) theme.of.n

Original Advisory:
1) http://www.openwall.com/lists/oss-security/2010/06/14/4
2) http://permalink.gmane.org/gmane.comp.web.w3m.devel/1096

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: w3m "Referer" Weakness and SSL Certificate Processing Vulnerability

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