ZoneAlarm Pro Ad-Blocking feature denial of service
| zonealarm-adblock-dos (18159) |  Low Risk |
Description:
ZoneAlarm is vulnerable to a denial of service attack, caused by a vulnerability in the Ad-Blocking feature when processing JavaScript. The Ad-Blocking feature is disabled by default. If the Ad-Blocking feature is enabled, a remote attacker could persuade a user into visiting a malicious Web site that contains specially-crafted JavaScript, the attacker could cause the system to stop responding, resulting in a denial of service.
Platforms Affected:
- CheckPoint, ZoneAlarm Pro 4.0
- CheckPoint, ZoneAlarm Pro 4.5
- ZoneLabs, ZoneAlarm Pro 3.0
- ZoneLabs, ZoneAlarm Pro 3.1
- ZoneLabs, ZoneAlarm Pro 5.0
- ZoneLabs, ZoneAlarm Security Suite 5.0
Remedy:
Upgrade to the latest version of ZoneAlarm (5.5.062 or later), available from the ZoneAlarm Web site. See References.
Consequences:
Denial of Service
References:
- Zone Labs Security Advisory, Zone Labs Ad-Blocking Instability at http://download.zonelabs.com/bin/free/securityAlert/18.html.
- ZoneAlarm Pro Web page, ZoneAlarm Pro at http://www.zonelabs.com/store/content/catalog/products/zap/zap_details.jsp#benefits.
- ZoneAlarm Web site, ZoneAlarmŽ Release History at http://download.zonelabs.com/bin/free/information/znalm/zaReleaseHistory.html.
- BID-11706: Zone Labs ZoneAlarm Remote Ad-Blocking Denial Of Service Vulnerability
- CVE-2004-1534: ZoneAlarm and ZoneAlarm Pro before 5.5.062, with ad-blocking enabled, allows remote web sites to cause a denial of service (application instability or system hang) via certain JavaScript.
- SA13244: ZoneAlarm Advertising Blocking Denial of Service Vulnerability
Reported:
Nov 19, 2004
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 (IBM 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.
For corrections or additions please email xforce@iss.net