Detections
Analytics
Cisco IOS cTCP Denial of Service Vulnerability - Cisco Systems
high Nessus Plugin ID 49029
Language:
Synopsis
The remote device is missing a vendor-supplied security patch.Description
A series of TCP packets may cause a denial of service (DoS) condition on Cisco IOS devices that are configured as Easy VPN servers with the Cisco Tunneling Control Protocol (cTCP) encapsulation feature. Cisco has released free software updates that address this vulnerability. No workarounds are available; however, the IPSec NAT traversal (NAT-T) feature can be used as an alternative.Solution
Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20090325-ctcp.See Also
Plugin Details
Severity: High
ID: 49029
File Name: cisco-sa-20090325-ctcphttp.nasl
Version: 1.20
Type: local
Family: CISCO
Published: 9/1/2010
Updated: 11/15/2018
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Vulnerability Information
CPE: cpe:/o:cisco:ios
Required KB Items: Host/Cisco/IOS/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 3/25/2009
Vulnerability Publication Date: 3/25/2009
Reference Information
CVE: CVE-2009-0635
BID: 34246