Pragma Systems InterAccess TelnetD Server 4.0 Build 4 Login Username memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Pragma Systems InterAccess TelnetD Server 4.0 Build 4. This issue affects some unknown processing of the component Login. Such manipulation of the argument Username leads to memory corruption. This vulnerability is listed as CVE-2000-0166. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Pragma Systems InterAccess TelnetD Server 4.0 Build 4 (Remote Access Software). Affected by this issue is an unknown functionality of the component Login. The manipulation of the argument Username 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 the InterAccess telnet server TelnetD allows remote attackers to execute commands via a long login name.

The weakness was presented 02/21/2000 by Ussr Labs (Website). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2000-0166. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in Windows Binary. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38008 (Pragma Systems InterAcces TelnetD Buffer Overflow Vulnerability).

Upgrading to version 4.0 Build 7 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (4032), Exploit-DB (19755), SecurityFocus (BID 995†) and Vulnerability Center (SBV-2169†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: InterAccess TelnetD Server 4.0 Build 7
McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍

Timelineinfo

02/21/2000 🔍
02/21/2000 +0 days 🔍
02/21/2000 +0 days 🔍
02/21/2000 +0 days 🔍
09/24/2003 +1311 days 🔍
06/23/2014 +3925 days 🔍
10/19/2025 +4136 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Ussr Labs
Status: Confirmed

CVE: CVE-2000-0166 (🔍)
GCVE (CVE): GCVE-0-2000-0166
GCVE (VulDB): GCVE-100-15338
X-Force: 4032
SecurityFocus: 995 - InterAccess TelnetD Server 4.0 Buffer Overflow Vulnerability
Vulnerability Center: 2169 - Buffer Overflow in InterAccess Telnet Server via Long Login Name, Critical

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/23/2014 17:45
Updated: 10/19/2025 18:36
Changes: 06/23/2014 17:45 (66), 05/13/2019 10:08 (2), 03/05/2025 18:57 (18), 10/19/2025 18:36 (2)
Complete: 🔍
Cache ID: 216:272:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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