Cisco VPN Concentrator Malformed SSH Initialization Packet Denial Of Service Vulnerability

BID:7522

Info

Cisco VPN Concentrator Malformed SSH Initialization Packet Denial Of Service Vulnerability

Bugtraq ID: 7522
Class: Failure to Handle Exceptional Conditions
CVE:
Remote: Yes
Local: No
Published: May 07 2003 12:00AM
Updated: May 07 2003 12:00AM
Credit: This vulnerability was disclosed by the vendor.
Vulnerable: Cisco VPN 3080 Concentrator
Cisco VPN 3060 Concentrator
Cisco VPN 3030 Concentrator
Cisco VPN 3015 Concentrator
Cisco VPN 3005 Concentrator 3.6.7 D
Cisco VPN 3005 Concentrator 3.6.7 C
Cisco VPN 3005 Concentrator 3.6.7 B
Cisco VPN 3005 Concentrator 3.6.7 A
Cisco VPN 3005 Concentrator 3.6.7
Cisco VPN 3005 Concentrator 3.6.5
Cisco VPN 3005 Concentrator 3.6.3
Cisco VPN 3002 Hardware Client
Cisco VPN 3000 Concentrator 3.6.7 D
Cisco VPN 3000 Concentrator 3.6.7
Cisco VPN 3000 Concentrator 3.6.1
Cisco VPN 3000 Concentrator 3.6
Cisco VPN 3000 Concentrator 3.5.5
Cisco VPN 3000 Concentrator 3.5.4
Cisco VPN 3000 Concentrator 3.5.3
Cisco VPN 3000 Concentrator 3.5.2
Cisco VPN 3000 Concentrator 3.5.1
Cisco VPN 3000 Concentrator 3.5 (Rel)
Cisco VPN 3000 Concentrator 3.1.4
Cisco VPN 3000 Concentrator 3.1.2
Cisco VPN 3000 Concentrator 3.1.1
Cisco VPN 3000 Concentrator 3.1 (Rel)
Cisco VPN 3000 Concentrator 3.1
Cisco VPN 3000 Concentrator 3.0.4
Cisco VPN 3000 Concentrator 3.0.3 (B)
Cisco VPN 3000 Concentrator 3.0.3 (A)
Cisco VPN 3000 Concentrator 3.0
Cisco VPN 3000 Concentrator 3.0
Cisco VPN 3000 Concentrator 2.5.2 (F)
Cisco VPN 3000 Concentrator 2.5.2 (D)
Cisco VPN 3000 Concentrator 2.5.2 (C)
Cisco VPN 3000 Concentrator 2.5.2 (B)
Cisco VPN 3000 Concentrator 2.5.2 (A)
Cisco VPN 3000 Concentrator 2.0
Not Vulnerable:

Discussion

Cisco VPN Concentrator Malformed SSH Initialization Packet Denial Of Service Vulnerability

Cisco VPN Concentrator has been reported prone to a potential Denial of Service condition.

The condition exists in the SSH server used by the Cisco VPN Concentrator. It has been reported that when handling certain malformed SSH session initialization packets, an error will occur causing the VPN concentrator to reload.

Solution / Fix

Cisco VPN Concentrator Malformed SSH Initialization Packet Denial Of Service Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.


Cisco VPN 3002 Hardware Client

Cisco VPN 3015 Concentrator

Cisco VPN 3060 Concentrator

Cisco VPN 3080 Concentrator

Cisco VPN 3030 Concentrator

Cisco VPN 3000 Concentrator 3.5 (Rel)

Cisco VPN 3000 Concentrator 3.5.1

Cisco VPN 3000 Concentrator 3.5.2

Cisco VPN 3000 Concentrator 3.5.3

Cisco VPN 3000 Concentrator 3.5.4

Cisco VPN 3000 Concentrator 3.5.5

Cisco VPN 3000 Concentrator 3.6

Cisco VPN 3000 Concentrator 3.6.1

Cisco VPN 3005 Concentrator 3.6.3

Cisco VPN 3005 Concentrator 3.6.5

Cisco VPN 3005 Concentrator 3.6.7 C

Cisco VPN 3005 Concentrator 3.6.7 A

Cisco VPN 3005 Concentrator 3.6.7

Cisco VPN 3005 Concentrator 3.6.7 B

Cisco VPN 3000 Concentrator 3.6.7 D

Cisco VPN 3005 Concentrator 3.6.7 D

References

Cisco VPN Concentrator Malformed SSH Initialization Packet Denial Of Service Vulnerability

References:

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