Microsoft Windows 95 and 98 with multiple TCP/IP stacks ICMP packet denial of service
| win-multiple-ip-dos (7542) |  Low Risk |
Description:
Microsoft Windows 95 and 98 clients with multiple TCP/IP stacks bound to the same MAC address are vulnerable to a denial of service attack. If a remote attacker pings an affected host, the host responds with one ACK packet for each TCP/IP stack loaded on the host. This could create collisions on the subnet, which would disrupt network functionality.
Platforms Affected:
- Microsoft, Windows 95
- Microsoft, Windows 98
Remedy:
No remedy available as of November 15, 2008.
Consequences:
Denial of Service
References:
- NTBugTraq Mailing List, Sat, 6 Feb 1999 07:00:32 -0800, New Windows 9x Bug: TCP Chorusing at http://www.ntbugtraq.com/default.asp?pid=36&sid=1&A2=ind9902&L=ntbugtraq&F=P&S=&P=1878.
- BID-225: Windows 9x TCP Chorusing Vulnerability
- CVE-1999-1201: Windows 95 and Windows 98 systems, when configured with multiple TCP/IP stacks bound to the same MAC address, allow remote attackers to cause a denial of service (traffic amplification) via a certain ICMP echo (ping) packet, which causes all stacks to send a ping response, aka TCP Chorusing.
Reported:
Feb 06, 1999
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