Bug 520454 (CVE-2009-3490) - CVE-2009-3490 wget: incorrect verification of SSL certificate with NUL in name
Summary: CVE-2009-3490 wget: incorrect verification of SSL certificate with NUL in name
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2009-3490
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,source=vendorsec,repo...
Depends On: 527660 527661 527662 527663 527664 527667 802808
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-08-31 14:48 UTC by Tomas Hoger
Modified: 2019-06-08 12:49 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-02-10 07:14:55 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:1549 normal SHIPPED_LIVE Moderate: wget security update 2009-11-03 20:06:18 UTC

Description Tomas Hoger 2009-08-31 14:48:13 UTC
A method to bypass SSL certificate name vs. host name verification via NUL
('\0') character embedded in X509 certificate's CommonName or subjectAltName
was presented at Black Hat USA 2009:

http://www.blackhat.com/html/bh-usa-09/bh-usa-09-archives.html#Marlinspike

Similar problem affected wget (from a testing and very quick look at the code, subjectAltNames are not supported, hence only CommonName is a vector).

Upstream bug report:
http://savannah.gnu.org/bugs/?27183 (currently not public)

Contents of upstream bug report, leaked via wget-notify list:
http://addictivecode.org/pipermail/wget-notify/2009-August/001808.html

Upstream fixes:
http://hg.addictivecode.org/wget/mainline/rev/2d8c76a23e7d
http://hg.addictivecode.org/wget/mainline/rev/f2d2ca32fd1b
http://hg.addictivecode.org/wget/mainline/rev/1eab157d3be7

Comment 2 Tomas Hoger 2009-09-23 09:01:34 UTC
wget 1.12 was released including this fix:
  http://permalink.gmane.org/gmane.comp.web.wget.general/8972

Comment 12 errata-xmlrpc 2009-11-03 20:06:23 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 3
  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 4

Via RHSA-2009:1549 https://rhn.redhat.com/errata/RHSA-2009-1549.html

Comment 13 Fedora Update System 2009-11-17 13:31:17 UTC
wget-1.12-1.fc11 has been submitted as an update for Fedora 11.
http://admin.fedoraproject.org/updates/wget-1.12-1.fc11

Comment 14 Fedora Update System 2009-11-17 13:31:22 UTC
wget-1.12-1.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/wget-1.12-1.fc12

Comment 15 Fedora Update System 2009-11-17 13:31:27 UTC
wget-1.12-1.fc10 has been submitted as an update for Fedora 10.
http://admin.fedoraproject.org/updates/wget-1.12-1.fc10

Comment 16 Fedora Update System 2009-11-18 16:21:11 UTC
wget-1.12-2.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/wget-1.12-2.fc12

Comment 17 Fedora Update System 2009-12-03 04:56:10 UTC
wget-1.12-2.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 18 Fedora Update System 2009-12-03 04:56:29 UTC
wget-1.12-2.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 19 Fedora Update System 2009-12-03 05:12:03 UTC
wget-1.12-2.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.