CVE-2004-0551

Severity

50%

Complexity

99%

Confidentiality

48%

Cisco CatOS 5.x before 5.5(20) through 8.x before 8.2(2) and 8.3(2)GLX, as used in Catalyst switches, allows remote attackers to cause a denial of service (system crash and reload) by sending invalid packets instead of the final ACK portion of the three-way handshake to the (1) Telnet, (2) HTTP, or (3) SSH services, aka "TCP-ACK DoS attack."

Cisco CatOS 5.x before 5.5(20) through 8.x before 8.2(2) and 8.3(2)GLX, as used in Catalyst switches, allows remote attackers to cause a denial of service (system crash and reload) by sending invalid packets instead of the final ACK portion of the three-way handshake to the (1) Telnet, (2) HTTP, or (3) SSH services, aka "TCP-ACK DoS attack."

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

Type

Cisco

First reported 20 years ago

2004-08-06 04:00:00

Last updated 7 years ago

2017-07-11 01:30:00

Affected Software

Cisco CatOS 2.1 (1)

2.1\(1\)

Cisco CatOS 2.1 (2)

2.1\(2\)

Cisco CatOS 2.1 (3)

2.1\(3\)

Cisco CatOS 2.1 (4)

2.1\(4\)

Cisco CatOS 2.1 (5)

2.1\(5\)

Cisco CatOS 2.1 (6)

2.1\(6\)

Cisco CatOS 2.1 (7)

2.1\(7\)

Cisco CatOS 2.1 (8)

2.1\(8\)

Cisco CatOS 2.1 (9)

2.1\(9\)

Cisco CatOS 2.1 (10)

2.1\(10\)

Cisco CatOS 2.1 (11)

2.1\(11\)

Cisco CatOS 2.1 (12)

2.1\(12\)

Cisco CatOS 2.2 (1)

2.2\(1\)

Cisco CatOS 2.2 (2)

2.2\(2\)

Cisco CatOS 2.3 (1)

2.3\(1\)

Cisco CatOS 2.4 (1)

2.4\(1\)

Cisco CatOS 2.4 (2)

2.4\(2\)

Cisco CatOS 2.4 (3)

2.4\(3\)

Cisco CatOS 2.4 (4)

2.4\(4\)

Cisco CatOS 2.4 (5)

2.4\(5\)

Cisco CatOS 2.4 (5a)

2.4\(5a\)

Cisco CatOS 3.0(7)

3.0\(7\)

Cisco CatOS 3.1 (1)

3.1\(1\)

Cisco CatOS 3.1 (2)

3.1\(2\)

Cisco CatOS 3.1 (2a)

3.1\(2a\)

Cisco CatOS 3.2 (1)

3.2\(1\)

Cisco CatOS 3.2 (1b)

3.2\(1b\)

Cisco CatOS 3.2 (2)

3.2\(2\)

Cisco CatOS 3.2 (3)

3.2\(3\)

Cisco CatOS 3.2 (4)

3.2\(4\)

Cisco CatOS 3.2 (5)

3.2\(5\)

Cisco CatOS 3.2 (6)

3.2\(6\)

Cisco CatOS 3.2 (7)

3.2\(7\)

Cisco CatOS 3.2 (8) - GDR

3.2\(8\)gdr

Cisco CatOS 4.1 (1)

4.1\(1\)

Cisco CatOS 4.1 (2)

4.1\(2\)

Cisco CatOS 4.1 (3)

4.1\(3\)

Cisco CatOS 4.2 (1)

4.2\(1\)

Cisco CatOS 4.2 (2)

4.2\(2\)

Cisco CatOS 4.3 (1a)

4.3\(1a\)

Cisco CatOS 4.4 (1)

4.4\(1\)

Cisco CatOS 4.5(1)

4.5\(1\)

Cisco CatOS 4.5 (2)

4.5\(2\)

Cisco CatOS 4.5 (3)

4.5\(3\)

Cisco CatOS 4.5 (4)

4.5\(4\)

Cisco CatOS 4.5 (5)

4.5\(5\)

Cisco CatOS 4.5 (6)

4.5\(6\)

Cisco CatOS 4.5 (6a)

4.5\(6a\)

Cisco CatOS 4.5 (7)

4.5\(7\)

Cisco CatOS 4.5 (8)

4.5\(8\)

Cisco CatOS 4.5 (9)

4.5\(9\)

Cisco CatOS 4.5 (10)

4.5\(10\)

Cisco CatOS 4.5 (11)

4.5\(11\)

Cisco CatOS 4.5 (12)

4.5\(12\)

Cisco CatOS 4.5 (12a)

4.5\(12a\)

Cisco CatOS 4.5 (13)

4.5\(13\)

Cisco CatOS 4.5 (13a)

4.5\(13a\)

Cisco CatOS 4.5 (14)

4.5\(14\)

Cisco CatOS 5.1 (1)

5.1\(1\)

Cisco CatOS 5.1 (1)CSX

5.1\(1\)csx

Cisco CatOS 5.1 (1a)

5.1\(1a\)

Cisco CatOS 5.1 (1a)CSX

5.1\(1a\)csx

Cisco CatOS 5.1 (2a)

5.1\(2a\)

Cisco CatOS 5.1 (2b)

5.1\(2b\)

Cisco CatOS 5.2 (1)

5.2\(1\)

Cisco CatOS 5.2 (1)CSX

5.2\(1\)csx

Cisco CatOS 5.2 (2)

5.2\(2\)

Cisco CatOS 5.2 (2)CSX

5.2\(2\)csx

Cisco CatOS 5.2 (3)

5.2\(3\)

Cisco CatOS 5.2 (3)CSX

5.2\(3\)csx

Cisco CatOS 5.2 (3a)CSX

5.2\(3a\)csx

Cisco CatOS 5.2 (4)

5.2\(4\)

Cisco CatOS 5.2 (5)

5.2\(5\)

Cisco CatOS 5.2 (6)

5.2\(6\)

Cisco CatOS 5.2 (7)

5.2\(7\)

Cisco CatOS 5.2 (7a)

5.2\(7a\)

Cisco CatOS 5.3 (1a)CSX

5.3\(1a\)csx

Cisco CatOS 5.3 (2)CSX

5.3\(2\)csx

Cisco CatOS 5.3 (3)CSX

5.3\(3\)csx

Cisco CatOS 5.3 (4)CSX

5.3\(4\)csx

Cisco CatOS 5.3 (5)CSX

5.3\(5\)csx

Cisco CatOS 5.3 (5a)CSX

5.3\(5a\)csx

Cisco CatOS 5.3 (6)CSX

5.3\(6\)csx

Cisco CatOS 5.3 (6a)CSX

5.3\(6a\)csx

Cisco CatOS 5.4

5.4

Cisco CatOS 5.4 (1)

5.4\(1\)

Cisco CatOS 5.4 (1) - deferred

5.4\(1\)deferred

Cisco CatOS 5.4 (2)

5.4\(2\)

Cisco CatOS 5.4 (2a)

5.4\(2a\)

Cisco CatOS 5.4 (3)

5.4\(3\)

Cisco CatOS 5.4 (4)

5.4\(4\)

Cisco CatOS 5.4 (4a)

5.4\(4a\)

Cisco CatOS 5.5

5.5

Cisco CatOS 5.5 (1)

5.5\(1\)

Cisco CatOS 5.5 (1a)

5.5\(1a\)

Cisco CatOS 5.5 (2)

5.5\(2\)

Cisco CatOS 5.5 (3)

5.5\(3\)

Cisco CatOS 5.5 (4)

5.5\(4\)

Cisco CatOS 5.5 (4a)

5.5\(4a\)

Cisco CatOS 5.5 (4b)

5.5\(4b\)

Cisco CatOS 5.5 (5)

5.5\(5\)

Cisco CatOS 5.5 (6)

5.5\(6\)

Cisco CatOS 5.5 (6a)

5.5\(6a\)

Cisco CatOS 5.5 (7)

5.5\(7\)

Cisco CatOS 5.5 (7a)

5.5\(7a\)

Cisco CatOS 5.5 (8)

5.5\(8\)

Cisco CatOS 5.5 (8a)

5.5\(8a\)

Cisco CatOS 5.5 (8a)CV

5.5\(8a\)cv

Cisco CatOS 5.5 (9)

5.5\(9\)

Cisco CatOS 5.5 (10)

5.5\(10\)

Cisco CatOS 5.5 (10a)

5.5\(10a\)

Cisco CatOS 5.5 (11)

5.5\(11\)

Cisco CatOS 5.5 (11a)

5.5\(11a\)

Cisco CatOS 5.5 (12)

5.5\(12\)

Cisco CatOS 5.5 (12a)

5.5\(12a\)

Cisco CatOS 5.5 (13)

5.5\(13\)

Cisco CatOS 5.5 (13.5)

5.5\(13.5\)

Cisco CatOS 5.5(13a)

5.5\(13a\)

Cisco CatOS 5.5 (14)

5.5\(14\)

Cisco CatOS 5.5 (15)

5.5\(15\)

Cisco CatOS 5.5 (16)

5.5\(16\)

Cisco CatOS 5.5 (16.2)

5.5\(16.2\)

Cisco CatOS 5.5 (17)

5.5\(17\)

Cisco CatOS 5.5 (18)

5.5\(18\)

Cisco CatOS 5.5 (19)

5.5\(19\)

Cisco CatOS 6.1

6.1

Cisco CatOS 6.1 (1)

6.1\(1\)

Cisco CatOS 6.1 (1a)

6.1\(1a\)

Cisco CatOS 6.1 (1b)

6.1\(1b\)

Cisco CatOS 6.1 (1c)

6.1\(1c\)

Cisco CatOS 6.1 (1d)

6.1\(1d\)

Cisco CatOS 6.1 (1e)

6.1\(1e\)

Cisco CatOS 6.1(2)

6.1\(2\)

Cisco CatOS 6.1 (2a)

6.1\(2a\)

Cisco CatOS 6.1 (3)

6.1\(3\)

Cisco CatOS 6.1 (3a)

6.1\(3a\)

Cisco CatOS 6.1 (4)

6.1\(4\)

Cisco CatOS 6.1 (4b)

6.1\(4b\)

Cisco CatOS 6.2 (1)

6.2\(1\)

Cisco CatOS 6.2 (1a)

6.2\(1a\)

Cisco CatOS 6.2 (2)

6.2\(2\)

Cisco CatOS 6.2 (2a)

6.2\(2a\)

Cisco CatOS 6.2 (3)

6.2\(3\)

Cisco CatOS 6.2 (3a)

6.2\(3a\)

Cisco CatOS 6.3 (1)

6.3\(1\)

Cisco CatOS 6.3 (1a)

6.3\(1a\)

Cisco CatOS 6.3 (2)

6.3\(2\)

Cisco CatOS 6.3 (2a)

6.3\(2a\)

Cisco CatOS 6.3 (3)

6.3\(3\)

Cisco CatOS 6.3 (3)x

6.3\(3\)x

Cisco CatOS 6.3 (3)x1

6.3\(3\)x1

Cisco CatOS 6.3 (3a)

6.3\(3a\)

Cisco CatOS 6.3 (4)

6.3\(4\)

Cisco CatOS 6.3 (4a)

6.3\(4a\)

Cisco CatOS 6.3 (5)

6.3\(5\)

Cisco CatOS 6.3 (5.10)

6.3\(5.10\)

Cisco CatOS 6.3 (6)

6.3\(6\)

Cisco CatOS 6.3 (7)

6.3\(7\)

Cisco CatOS 6.3 (8)

6.3\(8\)

Cisco CatOS 6.3 (8.3)

6.3\(8.3\)

Cisco CatOS 6.3 (9)

6.3\(9\)

Cisco CatOS 6.3 (10)

6.3\(10\)

Cisco CatOS 6.4 (1)

6.4\(1\)

Cisco CatOS 6.4 (2)

6.4\(2\)

Cisco CatOS 6.4 (3)

6.4\(3\)

Cisco CatOS 6.4 (4a)

6.4\(4a\)

Cisco CatOS 6.4 (5)

6.4\(5\)

Cisco CatOS 6.4 (6)

6.4\(6\)

Cisco CatOS 6.4 (7)

6.4\(7\)

Cisco CatOS 6.4 (8)

6.4\(8\)

Cisco CatOS 7.1 (1)

7.1\(1\)

Cisco CatOS 7.1 (1a)

7.1\(1a\)

Cisco CatOS 7.1 (2)

7.1\(2\)

Cisco CatOS 7.1 (2a)

7.1\(2a\)

Cisco CatOS 7.2 (0.65)

7.2\(0.65\)

Cisco CatOS 7.2 (1)

7.2\(1\)

Cisco CatOS 7.2 (2)

7.2\(2\)

Cisco CatOS 7.3

7.3

Cisco CatOS 7.3 (1)

7.3\(1\)

Cisco CatOS 7.3 (2)

7.3\(2\)

Cisco CatOS 7.4

7.4

Cisco CatOS 7.4 (0.2)CLR

7.4\(0.2\)clr

Cisco CatOS 7.4 (0.63)

7.4\(0.63\)

Cisco CatOS 7.4 (1)

7.4\(1\)

Cisco CatOS 7.4 (2)

7.4\(2\)

Cisco CatOS 7.4 (3)

7.4\(3\)

Cisco CatOS 7.5

7.5

Cisco CatOS 7.5 (1)

7.5\(1\)

Cisco CatOS 7.6

7.6

Cisco CatOS 7.6 (1)

7.6\(1\)

Cisco CatOS 7.6 (2)

7.6\(2\)

Cisco CatOS 7.6 (3)

7.6\(3\)

Cisco CatOS 7.6 (4)

7.6\(4\)

Cisco CatOS 7.6 (5)

7.6\(5\)

Cisco CatOS 8.1

8.1

Cisco CatOS 8.1 (2)

8.1\(2\)

Cisco CatOS 8.1 (3)

8.1\(3\)

Cisco CatOS 8.2

8.2

Cisco CatOS 8.2 (1)

8.2\(1\)

Cisco CatOS 8.3 (1)GLX

8.3\(1\)glx

Cisco CatOS 8.3 GLX

8.3glx

Cisco Catalyst 2901

Cisco Catalyst 2902

Cisco Catalyst 2926

Cisco Catalyst 2926F

Cisco Catalyst 2926GL

Cisco Catalyst 2926GS

Cisco Catalyst 2926T

Cisco Catalyst 2948

Cisco Catalyst 2948G-GE-TX

Cisco Catalyst 2948G-L3

Cisco Catalyst 2980G

Cisco Catalyst 2980G-A

Cisco Catalyst 4000

Cisco Catalyst 4500

Cisco Catalyst 4503

Cisco Catalyst 4506

Cisco Catalyst 4507R

Cisco Catalyst 4510R

Cisco Catalyst 4912G

Cisco Catalyst 5000

Cisco Catalyst 6000 2.2 (1a)WS-SVC-NAM-1

2.2\(1a\)

Cisco Catalyst 6000 3.1 (1a)WS-SVC-NAM-1

3.1\(1a\)

Cisco Catalyst 6000 2.2 (1a)WS-SVC-NAM-2

2.2\(1a\)

Cisco Catalyst 6000 3.1 (1a)WS-SVC-NAM-2

3.1\(1a\)

Cisco Catalyst 6000 2.1 (2)WS-X6380-NAM

2.1\(2\)

Cisco Catalyst 6000 3.1 (1a)WS-X6380-NAM

3.1\(1a\)

Cisco Catalyst 4000 4.5 (4b)

4.5\(4b\)

Cisco Catalyst 5000 4.5.10

4.5.10

Cisco Catalyst 4000 5.1

5.1

Cisco Catalyst 4000 5.2

5.2

Cisco Catalyst 4000 5.2(1a)

5.2\(1a\)

Cisco Catalyst 6000 5.3(1)CSX

5.3\(1\)csx

Cisco Catalyst 6000 6.1 (2.13)

6.1\(2.13\)

Cisco Catalyst 6000 6.2 (0.110)

6.2\(0.110\)

Cisco Catalyst 6000 6.2 (0.111)

6.2\(0.111\)

Cisco Catalyst 6000 6.3 (0.7)PAN

6.3\(0.7\)pan

Cisco CatOS 7.1

7.1

References

20040609 Cisco CatOS Telnet, HTTP and SSH Vulnerability

VU#245190

Third Party Advisory, US Government Resource

cisco-catalyst-ack-dos(16370)

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