CVE-2001-1444
The Kerberos Telnet protocol, as implemented by KTH Kerberos IV and Kerberos V (Heimdal), does not encrypt authentication and encryption options sent from the server, which allows remote attackers to downgrade authentication and encryption mechanisms…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Kerberos Telnet protocol, as implemented by KTH Kerberos IV and Kerberos V (Heimdal), does not encrypt authentication and encryption options sent from the server, which allows remote attackers to downgrade authentication and encryption mechanisms via a man-in-the-middle attack.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 1.30% probability · 69th percentile
- CISA KEV
- Not listed
- Affected
- kth/kth kerberos
- Source
- cve@mitre.org
References
- http://josefsson.org/ktelnet/kerberos-telnet.htmlExploit
- http://www.kb.cert.org/vuls/id/774587Third Party Advisory, US Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10640
- http://josefsson.org/ktelnet/kerberos-telnet.htmlExploit
- http://www.kb.cert.org/vuls/id/774587Third Party Advisory, US Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10640
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.