Microsoft Windows 95/98 TCP/IP Chorus denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability was found in Microsoft Windows 95/98 (Operating System). It has been classified as problematic. This affects an unknown code of the component TCP/IP Handler. The manipulation with an unknown input leads to a denial of service vulnerability (Chorus). CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

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.

The issue has been introduced in 08/24/1995. The weakness was disclosed 02/06/1999 by Dan Kaminsky as not defined posting (NTBugtraq). It is possible to read the advisory at marc.theaimsgroup.com. This vulnerability is uniquely identified as CVE-1999-1201. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but an exploit is available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/06/2019). Due to its background and reception, this vulnerability has a historic impact.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1262 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 10276 (TCP/IP 'Chorusing' Windows DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Denial of Service, running in the context r and relying on port 10003.

Upgrading to version ME, XP, NT 4.0 or 2000 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (7542) and Tenable (10276). The entry 14489 is pretty similar.

Productinfo

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Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Name: Chorus
Class: Denial of service / Chorus
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10276
Nessus Name: TCP/IP 'Chorusing' Windows DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Windows ME/XP/NT 4.0/2000

Timelineinfo

08/24/1995 🔍
01/01/1999 +1226 days 🔍
02/06/1999 +36 days 🔍
02/06/1999 +0 days 🔍
02/06/1999 +0 days 🔍
10/31/1999 +267 days 🔍
12/22/2002 +1148 days 🔍
06/20/2014 +4198 days 🔍
05/06/2019 +1781 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: marc.theaimsgroup.com
Researcher: Dan Kaminsky
Status: Not defined

CVE: CVE-1999-1201 (🔍)
X-Force: 7542
Vulnerability Center: 458 - DoS in Windows 9x via the TCP Chorusing Attack, Medium
SecurityFocus: 225 - Windows 9x TCP Chorusing Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍

Entryinfo

Created: 06/20/2014 16:33
Updated: 05/06/2019 20:51
Changes: 06/20/2014 16:33 (48), 05/06/2019 20:51 (27)
Complete: 🔍

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