CVE-2005-1020
Cisco IOS 12.0-12.3 - Denial of Service via SSH Authentication
Title source: llmDescription
Secure Shell (SSH) 2 in Cisco IOS 12.0 through 12.3 allows remote attackers to cause a denial of service (device reload) (1) via a username that contains a domain name when using a TACACS+ server to authenticate, (2) when a new SSH session is in the login phase and a currently logged in user issues a send command, or (3) when IOS is logging messages and an SSH session is terminated while the server is sending data.
References (8)
Core 8
Core References
Vendor Advisory vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/alerts/2005/Apr/1013655.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/13043
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/19987
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/19989
Patch, Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/14854
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/19990
Vendor Advisory vendor-advisory
x_refsource_cisco
http://www.cisco.com/warp/public/707/cisco-sa-20050406-ssh.shtml
Third Party Advisory, VDB Entry vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5455
Scores
EPSS
0.0173
EPSS Percentile
74.7%
Details
CWE
CWE-287
Status
published
Products (50)
cisco/ios
12.0
cisco/ios
12.0\(23\)s4
cisco/ios
12.0\(23\)s5
cisco/ios
12.0\(24\)s1
cisco/ios
12.0\(24\)s4
cisco/ios
12.0\(24\)s5
cisco/ios
12.0\(24.2\)s
cisco/ios
12.0\(26\)s1
cisco/ios
12.0\(27\)s
cisco/ios
12.0\(27\)sv
... and 40 more
Published
May 02, 2005
Tracked Since
Feb 18, 2026