CVE-2004-1464: Cisco IOS Denial-of-Service Vulnerability
Published Dec 31, 2004
·Updated
Cisco IOS 12.2(15) and earlier allows remote attackers to cause a denial of service (refused VTY (virtual terminal) connections), via a crafted TCP connection to the Telnet or reverse Telnet port.
Other sources
Cisco IOS contains an unspecified vulnerability that may block further telnet, reverse telnet, Remote Shell (RSH), Secure Shell (SSH), and in some cases, Hypertext Transport Protocol (HTTP) access to the Cisco device.
— CISA
Affected Software
381 affected components
Cisco IOS<=12.2\(15\)zj3
Cisco IOS
Cisco IOS<=12.2
Cisco IOS=12.2\(1\)
Cisco IOS=12.2\(1\)dx
Cisco IOS=12.2\(1\)s
Cisco IOS=12.2\(1\)t
Cisco IOS=12.2\(1\)xa
Cisco IOS=12.2\(1\)xd
Cisco IOS=12.2\(1\)xd1
Cisco IOS=12.2\(1\)xd3
Cisco IOS=12.2\(1\)xd4
Cisco IOS=12.2\(1\)xe
Cisco IOS=12.2\(1\)xe2
Cisco IOS=12.2\(1\)xe3
Cisco IOS=12.2\(1\)xh
Cisco IOS=12.2\(1\)xq
Cisco IOS=12.2\(1\)xs
Cisco IOS=12.2\(1\)xs1
Cisco IOS=12.2\(1.1\)
Cisco IOS=12.2\(1.1\)pi
Cisco IOS=12.2\(1.4\)s
Cisco IOS=12.2\(1b\)
Cisco IOS=12.2\(1b\)da1
Cisco IOS=12.2\(1d\)
Cisco IOS=12.2\(2\)b
Cisco IOS=12.2\(2\)bx
Cisco IOS=12.2\(2\)by
Cisco IOS=12.2\(2\)by2
Cisco IOS=12.2\(2\)dd3
Cisco IOS=12.2\(2\)t
Cisco IOS=12.2\(2\)t1
Cisco IOS=12.2\(2\)t4
Cisco IOS=12.2\(2\)xa
Cisco IOS=12.2\(2\)xa1
Cisco IOS=12.2\(2\)xa5
Cisco IOS=12.2\(2\)xb
Cisco IOS=12.2\(2\)xb3
Cisco IOS=12.2\(2\)xb4
Cisco IOS=12.2\(2\)xb11
Cisco IOS=12.2\(2\)xb14
Cisco IOS=12.2\(2\)xb15
Cisco IOS=12.2\(2\)xc1
Cisco IOS=12.2\(2\)xf
Cisco IOS=12.2\(2\)xg
Cisco IOS=12.2\(2\)xh
Cisco IOS=12.2\(2\)xh2
Cisco IOS=12.2\(2\)xh3
Cisco IOS=12.2\(2\)xi
Cisco IOS=12.2\(2\)xi1
Cisco IOS=12.2\(2\)xi2
Cisco IOS=12.2\(2\)xj
Cisco IOS=12.2\(2\)xj1
Cisco IOS=12.2\(2\)xk
Cisco IOS=12.2\(2\)xk2
Cisco IOS=12.2\(2\)xn
Cisco IOS=12.2\(2\)xt
Cisco IOS=12.2\(2\)xt3
Cisco IOS=12.2\(2\)xu
Cisco IOS=12.2\(2\)xu2
Cisco IOS=12.2\(2\)yc
Cisco IOS=12.2\(2.2\)t
Cisco IOS=12.2\(3\)
Cisco IOS=12.2\(3.4\)bp
Cisco IOS=12.2\(3d\)
Cisco IOS=12.2\(4\)
Cisco IOS=12.2\(4\)b
Cisco IOS=12.2\(4\)b1
Cisco IOS=12.2\(4\)b2
Cisco IOS=12.2\(4\)b3
Cisco IOS=12.2\(4\)b4
Cisco IOS=12.2\(4\)bc1
Cisco IOS=12.2\(4\)bc1a
Cisco IOS=12.2\(4\)bx
Cisco IOS=12.2\(4\)ja
Cisco IOS=12.2\(4\)ja1
Cisco IOS=12.2\(4\)mb3
Cisco IOS=12.2\(4\)mb12
Cisco IOS=12.2\(4\)mx
Cisco IOS=12.2\(4\)mx1
Cisco IOS=12.2\(4\)t
Cisco IOS=12.2\(4\)t1
Cisco IOS=12.2\(4\)t3
Cisco IOS=12.2\(4\)t6
Cisco IOS=12.2\(4\)xl
Cisco IOS=12.2\(4\)xl4
Cisco IOS=12.2\(4\)xm
Cisco IOS=12.2\(4\)xm2
Cisco IOS=12.2\(4\)xw
Cisco IOS=12.2\(4\)xw1
Cisco IOS=12.2\(4\)ya
Cisco IOS=12.2\(4\)ya1
Cisco IOS=12.2\(4\)ya7
Cisco IOS=12.2\(4\)ya8
Cisco IOS=12.2\(4\)yb
Cisco IOS=12.2\(5\)
Cisco IOS=12.2\(5\)ca1
Cisco IOS=12.2\(5d\)
Cisco IOS=12.2\(6.8\)t0a
Cisco IOS=12.2\(6.8\)t1a
Cisco IOS=12.2\(6c\)
Cisco IOS=12.2\(7\)
Cisco IOS=12.2\(7\)da
Cisco IOS=12.2\(7.4\)s
Cisco IOS=12.2\(7a\)
Cisco IOS=12.2\(7b\)
Cisco IOS=12.2\(8\)bc1
Cisco IOS=12.2\(8\)ja
Cisco IOS=12.2\(8\)t
Cisco IOS=12.2\(8\)t10
Cisco IOS=12.2\(8\)yd
Cisco IOS=12.2\(8\)yw2
Cisco IOS=12.2\(8\)yw3
Cisco IOS=12.2\(8\)yy
Cisco IOS=12.2\(8\)yy3
Cisco IOS=12.2\(8\)zb7
Cisco IOS=12.2\(9\)s
Cisco IOS=12.2\(10\)da2
Cisco IOS=12.2\(10g\)
Cisco IOS=12.2\(11\)bc3c
Cisco IOS=12.2\(11\)ja
Cisco IOS=12.2\(11\)ja1
Cisco IOS=12.2\(11\)t
Cisco IOS=12.2\(11\)t2
Cisco IOS=12.2\(11\)t3
Cisco IOS=12.2\(11\)t8
Cisco IOS=12.2\(11\)t9
Cisco IOS=12.2\(11\)yp1
Cisco IOS=12.2\(11\)yu
Cisco IOS=12.2\(11\)yv
Cisco IOS=12.2\(11\)yx1
Cisco IOS=12.2\(11\)yz2
Cisco IOS=12.2\(12\)
Cisco IOS=12.2\(12\)da3
Cisco IOS=12.2\(12.02\)s
Cisco IOS=12.2\(12.02\)t
Cisco IOS=12.2\(12.05\)
Cisco IOS=12.2\(12.05\)s
Cisco IOS=12.2\(12.05\)t
Cisco IOS=12.2\(12b\)
Cisco IOS=12.2\(12c\)
Cisco IOS=12.2\(12g\)
Cisco IOS=12.2\(12h\)
Cisco IOS=12.2\(12i\)
Cisco IOS=12.2\(13\)
Cisco IOS=12.2\(13\)ja1
Cisco IOS=12.2\(13\)mc1
Cisco IOS=12.2\(13\)t
Cisco IOS=12.2\(13\)t1
Cisco IOS=12.2\(13\)t9
Cisco IOS=12.2\(13\)zc
Cisco IOS=12.2\(13\)zd
Cisco IOS=12.2\(13\)ze
Cisco IOS=12.2\(13\)zf
Cisco IOS=12.2\(13\)zg
Cisco IOS=12.2\(13\)zh
Cisco IOS=12.2\(13\)zh3
Cisco IOS=12.2\(13\)zj
Cisco IOS=12.2\(13\)zk
Cisco IOS=12.2\(13\)zl
Cisco IOS=12.2\(13.03\)b
Cisco IOS=12.2\(13a\)
Cisco IOS=12.2\(13e\)
Cisco IOS=12.2\(14\)s
Cisco IOS=12.2\(14\)sx1
Cisco IOS=12.2\(14\)sy
Cisco IOS=12.2\(14\)sy1
Cisco IOS=12.2\(14\)sy03
Cisco IOS=12.2\(14\)sz
Cisco IOS=12.2\(14\)sz1
Cisco IOS=12.2\(14\)sz2
Cisco IOS=12.2\(14\)za
Cisco IOS=12.2\(14\)za2
Cisco IOS=12.2\(14\)za8
Cisco IOS=12.2\(14.5\)
Cisco IOS=12.2\(14.5\)t
Cisco IOS=12.2\(15\)b
Cisco IOS=12.2\(15\)bc
Cisco IOS=12.2\(15\)bc1
Cisco IOS=12.2\(15\)bx
Cisco IOS=12.2\(15\)bz
Cisco IOS=12.2\(15\)cx
Cisco IOS=12.2\(15\)mc1
Cisco IOS=12.2\(15\)sl1
Cisco IOS=12.2\(15\)t
Cisco IOS=12.2\(15\)t5
Cisco IOS=12.2\(15\)t7
Cisco IOS=12.2\(15\)t8
Cisco IOS=12.2\(15\)t9
Cisco IOS=12.2\(15\)ys_1.2\(1\)
Cisco IOS=12.2\(15\)zj
Cisco IOS=12.2\(15\)zj1
Cisco IOS=12.2\(15\)zj2
Cisco IOS=12.2\(15\)zj3
Cisco IOS=12.2\(15\)zk
Cisco IOS=12.2\(15\)zl
Cisco IOS=12.2\(15\)zl1
Cisco IOS=12.2\(15\)zn
Cisco IOS=12.2\(15\)zo
Cisco IOS=12.2\(15.1\)s
Cisco IOS=12.2\(16\)b
Cisco IOS=12.2\(16\)b1
Cisco IOS=12.2\(16\)bx
Cisco IOS=12.2\(16.1\)b
Cisco IOS=12.2\(16.5\)s
Cisco IOS=12.2\(16f\)
Cisco IOS=12.2\(17\)
Cisco IOS=12.2\(17\)a
Cisco IOS=12.2\(17a\)
Cisco IOS=12.2\(17a\)sxa
Cisco IOS=12.2\(17b\)sxa
Cisco IOS=12.2\(17d\)
Cisco IOS=12.2\(17d\)sxb
Cisco IOS=12.2\(18\)ew
Cisco IOS=12.2\(18\)s
Cisco IOS=12.2\(18\)se
Cisco IOS=12.2\(18\)sv
Cisco IOS=12.2\(18\)sw
Cisco IOS=12.2\(18.2\)
Cisco IOS=12.2\(19\)
Cisco IOS=12.2\(19\)b
Cisco IOS=12.2\(20\)s
Cisco IOS=12.2\(20\)s1
Cisco IOS=12.2\(20\)s2
Cisco IOS=12.2\(21\)
Cisco IOS=12.2\(21a\)
Cisco IOS=12.2\(21b\)
Cisco IOS=12.2\(22\)s
Cisco IOS=12.2\(23\)
Cisco IOS=12.2\(23\)sw
Cisco IOS=12.2\(23.6\)
Cisco IOS=12.2\(23a\)
Cisco IOS=12.2\(24\)
Cisco IOS=12.2b
Cisco IOS=12.2bc
Cisco IOS=12.2bw
Cisco IOS=12.2bx
Cisco IOS=12.2by
Cisco IOS=12.2bz
Cisco IOS=12.2cx
Cisco IOS=12.2cy
Cisco IOS=12.2da
Cisco IOS=12.2dd
Cisco IOS=12.2dx
Cisco IOS=12.2ew
Cisco IOS=12.2ja
Cisco IOS=12.2jk
Cisco IOS=12.2mb
Cisco IOS=12.2mc
Cisco IOS=12.2mx
Cisco IOS=12.2pb
Cisco IOS=12.2pi
Cisco IOS=12.2s
Cisco IOS=12.2sa
Cisco IOS=12.2se
Cisco IOS=12.2su
Cisco IOS=12.2sv
Cisco IOS=12.2sw
Cisco IOS=12.2sx
Cisco IOS=12.2sxa
Cisco IOS=12.2sxb
Cisco IOS=12.2sxd
Cisco IOS=12.2sy
Cisco IOS=12.2sz
Cisco IOS=12.2t
Cisco IOS=12.2xa
Cisco IOS=12.2xb
Cisco IOS=12.2xc
Cisco IOS=12.2xd
Cisco IOS=12.2xe
Cisco IOS=12.2xf
Cisco IOS=12.2xg
Cisco IOS=12.2xh
Cisco IOS=12.2xi
Cisco IOS=12.2xj
Cisco IOS=12.2xk
Cisco IOS=12.2xl
Cisco IOS=12.2xm
Cisco IOS=12.2xn
Cisco IOS=12.2xq
Cisco IOS=12.2xr
Cisco IOS=12.2xs
Cisco IOS=12.2xt
Cisco IOS=12.2xu
Cisco IOS=12.2xw
Cisco IOS=12.2ya
Cisco IOS=12.2yb
Cisco IOS=12.2yc
Cisco IOS=12.2yd
Cisco IOS=12.2ye
Cisco IOS=12.2yf
Cisco IOS=12.2yg
Cisco IOS=12.2yh
Cisco IOS=12.2yj
Cisco IOS=12.2yk
Cisco IOS=12.2yl
Cisco IOS=12.2ym
Cisco IOS=12.2yn
Cisco IOS=12.2yo
Cisco IOS=12.2yp
Cisco IOS=12.2yq
Cisco IOS=12.2yr
Cisco IOS=12.2ys
Cisco IOS=12.2yt
Cisco IOS=12.2yu
Cisco IOS=12.2yv
Cisco IOS=12.2yw
Cisco IOS=12.2yx
Cisco IOS=12.2yy
Cisco IOS=12.2yz
Cisco IOS=12.2za
Cisco IOS=12.2zb
Cisco IOS=12.2zc
Cisco IOS=12.2zd
Cisco IOS=12.2ze
Cisco IOS=12.2zf
Cisco IOS=12.2zg
Cisco IOS=12.2zh
Cisco IOS=12.2zi
Cisco IOS=12.2zj
Cisco IOS=12.2zk
Cisco IOS=12.2zl
Cisco IOS=12.2zn
Cisco IOS=12.2zo
Cisco IOS=12.2zp
Cisco IOS=12.2zq
Cisco IOS=12.3
Cisco IOS=12.3\(1a\)
Cisco IOS=12.3\(2\)t3
Cisco IOS=12.3\(2\)xc1
Cisco IOS=12.3\(2\)xc2
Cisco IOS=12.3\(2\)xc3
Cisco IOS=12.3\(3e\)
Cisco IOS=12.3\(4\)eo1
Cisco IOS=12.3\(4\)t
Cisco IOS=12.3\(4\)t1
Cisco IOS=12.3\(4\)t2
Cisco IOS=12.3\(4\)t3
Cisco IOS=12.3\(4\)t4
Cisco IOS=12.3\(4\)xd
Cisco IOS=12.3\(4\)xd1
Cisco IOS=12.3\(4\)xd2
Cisco IOS=12.3\(4\)xg1
Cisco IOS=12.3\(4\)xh
Cisco IOS=12.3\(4\)xk
Cisco IOS=12.3\(4\)xq
Cisco IOS=12.3\(5\)
Cisco IOS=12.3\(5\)b1
Cisco IOS=12.3\(5a\)
Cisco IOS=12.3\(5a\)b
Cisco IOS=12.3\(5b\)
Cisco IOS=12.3\(5c\)
Cisco IOS=12.3\(6\)
Cisco IOS=12.3\(6a\)
Cisco IOS=12.3\(7\)t
Cisco IOS=12.3\(7.7\)
Cisco IOS=12.3\(9\)
Cisco IOS=12.3b
Cisco IOS=12.3bc
Cisco IOS=12.3bw
Cisco IOS=12.3ja
Cisco IOS=12.3t
Cisco IOS=12.3xa
Cisco IOS=12.3xb
Cisco IOS=12.3xc
Cisco IOS=12.3xd
Cisco IOS=12.3xe
Cisco IOS=12.3xf
Cisco IOS=12.3xg
Cisco IOS=12.3xh
Cisco IOS=12.3xi
Cisco IOS=12.3xj
Cisco IOS=12.3xk
Cisco IOS=12.3xl
Cisco IOS=12.3xm
Cisco IOS=12.3xn
Cisco IOS=12.3xq
Cisco IOS=12.3xr
Cisco IOS=12.3xt
Cisco IOS=12.3xu
Cisco IOS=12.3yd
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Disable Telnet and reverse Telnet services on affected devices if they are not required (stop listening on Telnet/reverse-Telnet ports).
Cisco IOS (Telnet/reverse-Telnet service) telnet_enabled = disabled - Compensating control
Restrict or block access to Telnet and reverse Telnet ports (and other management ports) to trusted management hosts/networks using network ACLs, firewall rules, or an out-of-band management network.
Event History
Dec 31, 2004
CVE Published
05:00 AM
Data Sourced
via NVD·05:00 AM
RemedyDescriptionSeverityWeaknessAffected Software
Feb 13, 2005
CVE Published
via MITRE·05:00 AM
Data Sourced
via MITRE·05:00 AM
Description
May 19, 2023
Known Exploited
via CISA·12:00 AM
Frequently Asked Questions
1
What is the severity of CVE-2004-1464?
CVE-2004-1464 has a severity rating of medium, as it allows for denial of service attacks against Cisco IOS devices.
2
How do I fix CVE-2004-1464?
To mitigate CVE-2004-1464, upgrade your Cisco IOS to a version beyond 12.2(15) that addresses this vulnerability.
3
What systems are affected by CVE-2004-1464?
CVE-2004-1464 affects Cisco IOS versions 12.2(15) and earlier.
4
Can CVE-2004-1464 be exploited remotely?
Yes, CVE-2004-1464 can be exploited remotely via crafted TCP connections to the Telnet or reverse Telnet port.
5
What type of impact does CVE-2004-1464 have?
The impact of CVE-2004-1464 is denial of service, where further VTY connections are refused.