Vulnerability Monitor

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CVE-2001-1443

KTH Kerberos IV and Kerberos V (Heimdal) for Telnet clients do not encrypt connections if the server does not support the requested encryption, which allows remote attackers to read communications via a man-in-the-middle attack.

Published

2001-08-27T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	kth	kth_kerberos	4	Yes
Application	kth	kth_kerberos	5	Yes

References

http://josefsson.org/ktelnet/kerberos-telnet.html Exploit ([email protected])
http://www.kb.cert.org/vuls/id/390280 Third Party Advisory, US Government Resource ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/10640 ([email protected])
http://josefsson.org/ktelnet/kerberos-telnet.html Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/390280 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/10640 (af854a3a-2127-422b-91ae-364da2661108)