Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2005-1020

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.

Published

2005-05-02T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

8.6

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-287
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios 12.0 Yes
Operating System cisco ios 12.0\(23\)s4 Yes
Operating System cisco ios 12.0\(23\)s5 Yes
Operating System cisco ios 12.0\(24\)s1 Yes
Operating System cisco ios 12.0\(24\)s4 Yes
Operating System cisco ios 12.0\(24\)s5 Yes
Operating System cisco ios 12.0\(24.2\)s Yes
Operating System cisco ios 12.0\(26\)s1 Yes
Operating System cisco ios 12.0\(27\)s Yes
Operating System cisco ios 12.0\(27\)sv Yes
Operating System cisco ios 12.0\(27\)sv1 Yes
Operating System cisco ios 12.0da Yes
Operating System cisco ios 12.0db Yes
Operating System cisco ios 12.0dc Yes
Operating System cisco ios 12.0s Yes
Operating System cisco ios 12.0sc Yes
Operating System cisco ios 12.0sl Yes
Operating System cisco ios 12.0sp Yes
Operating System cisco ios 12.0st Yes
Operating System cisco ios 12.0sv Yes
Operating System cisco ios 12.0sx Yes
Operating System cisco ios 12.0sy Yes
Operating System cisco ios 12.0sz Yes
Operating System cisco ios 12.0t Yes
Operating System cisco ios 12.0w5 Yes
Operating System cisco ios 12.0wc Yes
Operating System cisco ios 12.0wt Yes
Operating System cisco ios 12.0wx Yes
Operating System cisco ios 12.0xa Yes
Operating System cisco ios 12.0xb Yes
Operating System cisco ios 12.0xc Yes
Operating System cisco ios 12.0xd Yes
Operating System cisco ios 12.0xe Yes
Operating System cisco ios 12.0xf Yes
Operating System cisco ios 12.0xg Yes
Operating System cisco ios 12.0xh Yes
Operating System cisco ios 12.0xi Yes
Operating System cisco ios 12.0xj Yes
Operating System cisco ios 12.0xk Yes
Operating System cisco ios 12.0xl Yes
Operating System cisco ios 12.0xm Yes
Operating System cisco ios 12.0xn Yes
Operating System cisco ios 12.0xp Yes
Operating System cisco ios 12.0xq Yes
Operating System cisco ios 12.0xr Yes
Operating System cisco ios 12.0xs Yes
Operating System cisco ios 12.0xt Yes
Operating System cisco ios 12.0xu Yes
Operating System cisco ios 12.0xv Yes
Operating System cisco ios 12.0xw Yes
Operating System cisco ios 12.1 Yes
Operating System cisco ios 12.1\(11\)e Yes
Operating System cisco ios 12.1\(11b\)e Yes
Operating System cisco ios 12.1\(11b\)e12 Yes
Operating System cisco ios 12.1\(11b\)e14 Yes
Operating System cisco ios 12.1\(13\)e9 Yes
Operating System cisco ios 12.1\(19\)e1 Yes
Operating System cisco ios 12.1\(20\)e Yes
Operating System cisco ios 12.1\(20\)e1 Yes
Operating System cisco ios 12.1\(20\)e2 Yes
Operating System cisco ios 12.1\(20\)ea1 Yes
Operating System cisco ios 12.1\(20\)ec Yes
Operating System cisco ios 12.1\(20\)ec1 Yes
Operating System cisco ios 12.1\(20\)eo Yes
Operating System cisco ios 12.1\(20\)ew Yes
Operating System cisco ios 12.1\(20\)ew1 Yes
Operating System cisco ios 12.1aa Yes
Operating System cisco ios 12.1ax Yes
Operating System cisco ios 12.1ay Yes
Operating System cisco ios 12.1az Yes
Operating System cisco ios 12.1cx Yes
Operating System cisco ios 12.1da Yes
Operating System cisco ios 12.1db Yes
Operating System cisco ios 12.1dc Yes
Operating System cisco ios 12.1e Yes
Operating System cisco ios 12.1ea Yes
Operating System cisco ios 12.1eb Yes
Operating System cisco ios 12.1ec Yes
Operating System cisco ios 12.1eo Yes
Operating System cisco ios 12.1eu Yes
Operating System cisco ios 12.1ev Yes
Operating System cisco ios 12.1ew Yes
Operating System cisco ios 12.1ex Yes
Operating System cisco ios 12.1ey Yes
Operating System cisco ios 12.1m Yes
Operating System cisco ios 12.1t Yes
Operating System cisco ios 12.1xa Yes
Operating System cisco ios 12.1xb Yes
Operating System cisco ios 12.1xc Yes
Operating System cisco ios 12.1xd Yes
Operating System cisco ios 12.1xe Yes
Operating System cisco ios 12.1xf Yes
Operating System cisco ios 12.1xg Yes
Operating System cisco ios 12.1xh Yes
Operating System cisco ios 12.1xi Yes
Operating System cisco ios 12.1xj Yes
Operating System cisco ios 12.1xk Yes
Operating System cisco ios 12.1xl Yes
Operating System cisco ios 12.1xm Yes
Operating System cisco ios 12.1xp Yes
Operating System cisco ios 12.1xq Yes
Operating System cisco ios 12.1xr Yes
Operating System cisco ios 12.1xs Yes
Operating System cisco ios 12.1xt Yes
Operating System cisco ios 12.1xu Yes
Operating System cisco ios 12.1xv Yes
Operating System cisco ios 12.1xw Yes
Operating System cisco ios 12.1xx Yes
Operating System cisco ios 12.1xy Yes
Operating System cisco ios 12.1xz Yes
Operating System cisco ios 12.1ya Yes
Operating System cisco ios 12.1yb Yes
Operating System cisco ios 12.1yc Yes
Operating System cisco ios 12.1yd Yes
Operating System cisco ios 12.1ye Yes
Operating System cisco ios 12.1yf Yes
Operating System cisco ios 12.1yh Yes
Operating System cisco ios 12.1yi Yes
Operating System cisco ios 12.1yj Yes
Operating System cisco ios 12.2 Yes
Operating System cisco ios 12.2\(1\)xa Yes
Operating System cisco ios 12.2\(1\)xd Yes
Operating System cisco ios 12.2\(1\)xd1 Yes
Operating System cisco ios 12.2\(1\)xd3 Yes
Operating System cisco ios 12.2\(1\)xd4 Yes
Operating System cisco ios 12.2\(1\)xe Yes
Operating System cisco ios 12.2\(1\)xe2 Yes
Operating System cisco ios 12.2\(1\)xe3 Yes
Operating System cisco ios 12.2\(1\)xh Yes
Operating System cisco ios 12.2\(1\)xq Yes
Operating System cisco ios 12.2\(1\)xs Yes
Operating System cisco ios 12.2\(1\)xs1 Yes
Operating System cisco ios 12.2\(2\)t4 Yes
Operating System cisco ios 12.2\(2\)xa Yes
Operating System cisco ios 12.2\(2\)xa1 Yes
Operating System cisco ios 12.2\(2\)xa5 Yes
Operating System cisco ios 12.2\(2\)xb Yes
Operating System cisco ios 12.2\(2\)xb3 Yes
Operating System cisco ios 12.2\(2\)xb4 Yes
Operating System cisco ios 12.2\(2\)xf Yes
Operating System cisco ios 12.2\(2\)xg Yes
Operating System cisco ios 12.2\(2\)xh Yes
Operating System cisco ios 12.2\(2\)xh2 Yes
Operating System cisco ios 12.2\(2\)xh3 Yes
Operating System cisco ios 12.2\(2\)xi Yes
Operating System cisco ios 12.2\(2\)xi1 Yes
Operating System cisco ios 12.2\(2\)xi2 Yes
Operating System cisco ios 12.2\(2\)xj Yes
Operating System cisco ios 12.2\(2\)xj1 Yes
Operating System cisco ios 12.2\(2\)xk Yes
Operating System cisco ios 12.2\(2\)xk2 Yes
Operating System cisco ios 12.2\(2\)xn Yes
Operating System cisco ios 12.2\(2\)xt Yes
Operating System cisco ios 12.2\(2\)xt3 Yes
Operating System cisco ios 12.2\(2\)xu Yes
Operating System cisco ios 12.2\(2\)xu2 Yes
Operating System cisco ios 12.2\(4\)ja Yes
Operating System cisco ios 12.2\(4\)ja1 Yes
Operating System cisco ios 12.2\(8\)ja Yes
Operating System cisco ios 12.2\(11\)ja Yes
Operating System cisco ios 12.2\(11\)ja1 Yes
Operating System cisco ios 12.2\(11\)t Yes
Operating System cisco ios 12.2\(12g\) Yes
Operating System cisco ios 12.2\(12h\) Yes
Operating System cisco ios 12.2\(14\)sy Yes
Operating System cisco ios 12.2\(14\)sy1 Yes
Operating System cisco ios 12.2\(14\)sz Yes
Operating System cisco ios 12.2\(14\)za Yes
Operating System cisco ios 12.2\(14\)za2 Yes
Operating System cisco ios 12.2\(14.5\) Yes
Operating System cisco ios 12.2\(14.5\)t Yes
Operating System cisco ios 12.2\(15\)zn Yes
Operating System cisco ios 12.2\(15.1\)s Yes
Operating System cisco ios 12.2\(16\)b Yes
Operating System cisco ios 12.2\(16.1\)b Yes
Operating System cisco ios 12.2\(17a\)sxa Yes
Operating System cisco ios 12.2\(18\)ew Yes
Operating System cisco ios 12.2\(18\)ewa Yes
Operating System cisco ios 12.2\(18\)s Yes
Operating System cisco ios 12.2\(18\)se Yes
Operating System cisco ios 12.2\(18\)sv Yes
Operating System cisco ios 12.2\(18\)sw Yes
Operating System cisco ios 12.2\(20\)ew Yes
Operating System cisco ios 12.2\(20\)s Yes
Operating System cisco ios 12.2\(20\)s1 Yes
Operating System cisco ios 12.2\(21\) Yes
Operating System cisco ios 12.2\(21a\) Yes
Operating System cisco ios 12.2\(23\) Yes
Operating System cisco ios 12.2b Yes
Operating System cisco ios 12.2bc Yes
Operating System cisco ios 12.2bw Yes
Operating System cisco ios 12.2bx Yes
Operating System cisco ios 12.2by Yes
Operating System cisco ios 12.2bz Yes
Operating System cisco ios 12.2cx Yes
Operating System cisco ios 12.2cy Yes
Operating System cisco ios 12.2cz Yes
Operating System cisco ios 12.2da Yes
Operating System cisco ios 12.2dd Yes
Operating System cisco ios 12.2dx Yes
Operating System cisco ios 12.2ew Yes
Operating System cisco ios 12.2ewa Yes
Operating System cisco ios 12.2ja Yes
Operating System cisco ios 12.2jk Yes
Operating System cisco ios 12.2mb Yes
Operating System cisco ios 12.2mc Yes
Operating System cisco ios 12.2mx Yes
Operating System cisco ios 12.2s Yes
Operating System cisco ios 12.2se Yes
Operating System cisco ios 12.2su Yes
Operating System cisco ios 12.2sv Yes
Operating System cisco ios 12.2sw Yes
Operating System cisco ios 12.2sx Yes
Operating System cisco ios 12.2sxa Yes
Operating System cisco ios 12.2sxb Yes
Operating System cisco ios 12.2sxd Yes
Operating System cisco ios 12.2sy Yes
Operating System cisco ios 12.2sz Yes
Operating System cisco ios 12.2t Yes
Operating System cisco ios 12.2x Yes
Operating System cisco ios 12.2xa Yes
Operating System cisco ios 12.2xb Yes
Operating System cisco ios 12.2xc Yes
Operating System cisco ios 12.2xd Yes
Operating System cisco ios 12.2xe Yes
Operating System cisco ios 12.2xf Yes
Operating System cisco ios 12.2xg Yes
Operating System cisco ios 12.2xh Yes
Operating System cisco ios 12.2xi Yes
Operating System cisco ios 12.2xj Yes
Operating System cisco ios 12.2xk Yes
Operating System cisco ios 12.2xl Yes
Operating System cisco ios 12.2xm Yes
Operating System cisco ios 12.2xn Yes
Operating System cisco ios 12.2xq Yes
Operating System cisco ios 12.2xr Yes
Operating System cisco ios 12.2xs Yes
Operating System cisco ios 12.2xt Yes
Operating System cisco ios 12.2xu Yes
Operating System cisco ios 12.2xw Yes
Operating System cisco ios 12.2xz Yes
Operating System cisco ios 12.2ya Yes
Operating System cisco ios 12.2yb Yes
Operating System cisco ios 12.2yc Yes
Operating System cisco ios 12.2yd Yes
Operating System cisco ios 12.2ye Yes
Operating System cisco ios 12.2yf Yes
Operating System cisco ios 12.2yg Yes
Operating System cisco ios 12.2yh Yes
Operating System cisco ios 12.2yj Yes
Operating System cisco ios 12.2yk Yes
Operating System cisco ios 12.2yl Yes
Operating System cisco ios 12.2ym Yes
Operating System cisco ios 12.2yn Yes
Operating System cisco ios 12.2yo Yes
Operating System cisco ios 12.2yp Yes
Operating System cisco ios 12.2yq Yes
Operating System cisco ios 12.2yr Yes
Operating System cisco ios 12.2ys Yes
Operating System cisco ios 12.2yt Yes
Operating System cisco ios 12.2yu Yes
Operating System cisco ios 12.2yv Yes
Operating System cisco ios 12.2yw Yes
Operating System cisco ios 12.2yx Yes
Operating System cisco ios 12.2yy Yes
Operating System cisco ios 12.2yz Yes
Operating System cisco ios 12.2za Yes
Operating System cisco ios 12.2zb Yes
Operating System cisco ios 12.2zc Yes
Operating System cisco ios 12.2zd Yes
Operating System cisco ios 12.2ze Yes
Operating System cisco ios 12.2zf Yes
Operating System cisco ios 12.2zg Yes
Operating System cisco ios 12.2zh Yes
Operating System cisco ios 12.2zi Yes
Operating System cisco ios 12.2zj Yes
Operating System cisco ios 12.2zk Yes
Operating System cisco ios 12.2zl Yes
Operating System cisco ios 12.2zm Yes
Operating System cisco ios 12.2zn Yes
Operating System cisco ios 12.2zo Yes
Operating System cisco ios 12.2zp Yes
Operating System cisco ios 12.2zq Yes
Operating System cisco ios 12.3 Yes
Operating System cisco ios 12.3\(2\)t3 Yes
Operating System cisco ios 12.3\(2\)xc1 Yes
Operating System cisco ios 12.3\(2\)xc2 Yes
Operating System cisco ios 12.3\(4\)t Yes
Operating System cisco ios 12.3\(4\)t1 Yes
Operating System cisco ios 12.3\(4\)t2 Yes
Operating System cisco ios 12.3\(4\)t3 Yes
Operating System cisco ios 12.3\(4\)xd Yes
Operating System cisco ios 12.3\(4\)xd1 Yes
Operating System cisco ios 12.3\(5\) Yes
Operating System cisco ios 12.3\(5a\) Yes
Operating System cisco ios 12.3\(5a\)b Yes
Operating System cisco ios 12.3\(5b\) Yes
Operating System cisco ios 12.3\(6\) Yes
Operating System cisco ios 12.3b Yes
Operating System cisco ios 12.3bc Yes
Operating System cisco ios 12.3bw Yes
Operating System cisco ios 12.3j Yes
Operating System cisco ios 12.3ja Yes
Operating System cisco ios 12.3t Yes
Operating System cisco ios 12.3xa Yes
Operating System cisco ios 12.3xb Yes
Operating System cisco ios 12.3xc Yes
Operating System cisco ios 12.3xd Yes
Operating System cisco ios 12.3xe Yes
Operating System cisco ios 12.3xf Yes
Operating System cisco ios 12.3xg Yes
Operating System cisco ios 12.3xh Yes
Operating System cisco ios 12.3xi Yes
Operating System cisco ios 12.3xj Yes
Operating System cisco ios 12.3xk Yes
Operating System cisco ios 12.3xl Yes
Operating System cisco ios 12.3xm Yes
Operating System cisco ios 12.3xn Yes
Operating System cisco ios 12.3xq Yes
Operating System cisco ios 12.3xr Yes
Operating System cisco ios 12.3xs Yes
Operating System cisco ios 12.3xt Yes
Operating System cisco ios 12.3xu Yes
Operating System cisco ios 12.3xv Yes
Operating System cisco ios 12.3xw Yes
Operating System cisco ios 12.3xx Yes
Operating System cisco ios 12.3xy Yes
Operating System cisco ios 12.3xz Yes
Operating System cisco ios 12.3ya Yes
Operating System cisco ios 12.3yc Yes
Operating System cisco ios 12.3yd Yes
Operating System cisco ios 12.3ye Yes
Operating System cisco ios 12.3yf Yes
Operating System cisco ios 12.3yg Yes
Operating System cisco ios 12.3yh Yes
Operating System cisco ios 12.3yj Yes
Operating System cisco ios 12.3yl Yes
References