MadWifi WPA weak security

madwifi-wpa-weak-security (33514) The risk level is classified as LowLow Risk

Description:

MadWifi could provide weaker than expected security restrictions, caused by an error in the ieee80211_output.c source file. Unencrypted packets are sent before WPA authentication finishes. A remote attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service.

Platforms Affected:

  • Canonical, Ubuntu 6.06 LTS
  • Canonical, Ubuntu 6.10
  • Canonical, Ubuntu 7.04
  • Gentoo, Linux
  • Madwifi Driver, Madwifi Driver 0.9.2 and prior
  • MandrakeSoft, Mandrake Linux 2007
  • MandrakeSoft, Mandrake Linux 2007 X86_64
  • MandrakeSoft, Mandrake Linux 2007.1 X86_64
  • MandrakeSoft, Mandrake Linux 2007.1
  • MandrakeSoft, Mandrake Linux 2008.0 X86_64
  • SuSE, SuSE Linux Desktop 10.0

Remedy:

Upgrade to the latest version of MadWifi (0.9.3 or later), available from the MadWifi Web site. See References.

For Mandriva Linux:
Refer to MDKSA-2007:082 for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200704-15 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux:
Refer to USN-479-1 for patch, upgrade, or suggested workaround information. See References.

For SUSE Linux:
Refer to SUSE-SR:2007-014 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Bypass Security

References:

  • MadWifi Ticket #967, [patch] unencrypted data packets are sent before WPA authentication succeeds at http://madwifi.org/ticket/967.
  • MadWifi Web site, Release v.0.9.3 at http://madwifi.org/wiki/Releases/0.9.3.
  • BID-23434: MADWiFi IEEE80211_Output.C Unencrypted Data Packet Multiple Vulnerabilities
  • CVE-2006-7180: ieee80211_output.c in MadWifi before 0.9.3 sends unencrypted packets before WPA authentication succeeds, which allows remote attackers to obtain sensitive information (related to network structure), and possibly cause a denial of sevice (disrupted authentication) and conduct spoofing attacks.
  • FrSIRT/ADV-2007-1187: MadWifi Multiple Remote Denial of Service and Information Disclosure Vulnerabilities
  • GLSA-200704-15: MadWifi: Multiple vulnerabilities
  • MDKSA-2007:082: Updated madwifi-source
  • OSVDB ID: 33515: madwifi Multiple Unspecified Issues
  • SA24670: MadWifi Denial of Service and Information Disclosure Vulnerabilities
  • SUSE-SR:2007:014: SUSE Security Summary Report
  • USN-479-1: MadWifi vulnerabilities

Reported:

Oct 19, 2006

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.

For corrections or additions please email xforce@iss.net

Return to the main page