FreeBSD 2.1.0/2.2 T/TCP Extension authentication spoofing

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in FreeBSD 2.1.0/2.2. Affected by this vulnerability is an unknown functionality of the component T/TCP Extension. The manipulation results in authentication spoofing. This vulnerability is cataloged as CVE-1999-0796. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in FreeBSD 2.1.0/2.2 (Operating System). Affected is an unknown code block of the component T/TCP Extension. The manipulation with an unknown input leads to a authentication spoofing vulnerability. CWE is classifying the issue as CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

FreeBSD T/TCP Extensions for Transactions can be subjected to spoofing attacks.

The weakness was shared 05/01/1998 (Website). The advisory is shared for download at osvdb.org. This vulnerability is traded as CVE-1999-0796. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (3828), OSVDB (6089†) and Vulnerability Center (SBV-23370†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/01/1998 🔍
05/01/1998 +0 days 🔍
05/01/1998 +0 days 🔍
04/09/2004 +2169 days 🔍
09/02/2009 +1972 days 🔍
06/19/2014 +1751 days 🔍
04/17/2026 +4320 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: osvdb.org⛔
Status: Confirmed

CVE: CVE-1999-0796 (🔍)
GCVE (CVE): GCVE-0-1999-0796
GCVE (VulDB): GCVE-100-14124
X-Force: 3828
OSVDB: 6089 - FreeBSD T/TCP Extensions Transactions Spoofing
Vulnerability Center: 23370 - FreeBSD 2.1.0 - 2.2.8 T/TCP Extensions for Transactions Spoofing Attacks, High

Entryinfo

Created: 06/19/2014 15:05
Updated: 04/17/2026 11:44
Changes: 06/19/2014 15:05 (49), 02/13/2017 12:33 (7), 04/17/2026 11:44 (18)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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