BSD Telnet Client missing encryption

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in BSD. It has been rated as critical. This issue affects some unknown processing of the component Telnet Client. This manipulation causes missing encryption. The identification of this vulnerability is CVE-1999-1098. There is no exploit available. It is advised to implement further authentication.

Detailsinfo

A vulnerability classified as critical was found in BSD (version unknown). Affected by this vulnerability is an unknown function of the component Telnet Client. The manipulation with an unknown input leads to a missing encryption vulnerability. The CWE definition for the vulnerability is CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. As an impact it is known to affect confidentiality. The summary by CVE is:

vulnerability in bsd telnet client with encryption and kerberos 4 authentication allows remote attackers to decrypt the session via sniffing.

The weakness was shared 03/03/1995 by FIRST as CA-1995-03 as confirmed advisory (CERT.org). It is possible to read the advisory at cert.org. This vulnerability is known as CVE-1999-1098. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

It is possible to mitigate the problem by adding an authentication mechanism.

The vulnerability is also documented in the databases at X-Force (516), SecurityFocus (BID 139†) and OSVDB (4881†). Additional details are provided at ciac.org. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
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: Missing encryption
CWE: CWE-311 / CWE-310
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: Authentication
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/03/1995 🔍
03/03/1995 +0 days 🔍
12/31/1998 +1399 days 🔍
04/03/2004 +1920 days 🔍
06/17/2014 +3726 days 🔍
04/03/2025 +3943 days 🔍

Sourcesinfo

Advisory: CA-1995-03
Researcher: FIRST
Status: Confirmed

CVE: CVE-1999-1098 (🔍)
GCVE (CVE): GCVE-0-1999-1098
GCVE (VulDB): GCVE-100-13699
X-Force: 516 - Berkeley Telnet clients that support encryption can be decrypted easily
SecurityFocus: 139 - Berkeley Telnet Kerberos Vulnerability
OSVDB: 4881 - BSD Telnet Client Kerberos Session Sniffing

Misc.: 🔍

Entryinfo

Created: 06/17/2014 15:43
Updated: 04/03/2025 10:28
Changes: 06/17/2014 15:43 (59), 04/03/2019 14:10 (1), 04/03/2025 10:28 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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