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7.0	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in Hilgraeve HyperTerminal 6.0. Affected by this issue is an unknown code of the component Telnet URI Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in Hilgraeve, Inc. HyperTerminal client on Windows 98, ME, and 2000 allows remote attackers to execute arbitrary commands via a long telnet URL, aka the "HyperTerminal Buffer Overflow" vulnerability.

The weakness was disclosed 12/19/2000 by Ussr Labs with Microsoft (Website). The advisory is available at xforce.iss.net. This vulnerability is handled as CVE-2000-0991. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

Upgrading to version 6.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (5387). The entries VDB-657 and VDB-19540 are pretty similar.

Productinfo

Vendor

• Hilgraeve

Name

• HyperTerminal

Version

• 6.0

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: HyperTerminal 6.1

Timelineinfo

10/18/2000 🔍
10/18/2000 +0 days 🔍
12/19/2000 +62 days 🔍
12/19/2000 +0 days 🔍
12/11/2003 +1087 days 🔍
07/02/2014 +3856 days 🔍
05/18/2019 +1781 days 🔍

Sourcesinfo

Advisory: xforce.iss.net
Researcher: Ussr Labs
Organization: Microsoft
Status: Not defined

CVE: CVE-2000-0991 (🔍)
X-Force: 5387
Vulnerability Center: 3138 - [MS00-079] Buffer Overflow in Hilgraeve Inc. HyperTerminal Client Allows Arbitrary Code Execution, Critical
SecurityFocus: 1815 - Hilgraeve HyperTerminal Telnet Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 07/02/2014 11:22
Updated: 05/18/2019 09:07
Changes: 07/02/2014 11:22 (56), 05/18/2019 09:07 (4)
Complete: 🔍
Cache ID: 3:A3A:103

Discussion

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