Detections
Analytics
Cisco IOS XE Software TCP Denial of Service Vulnerability
medium Nessus Plugin ID 123789
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco IOS XE Software is affected by following vulnerability- A vulnerability in the TCP socket code of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a state condition between the socket state and the transmission control block (TCB) state. While this vulnerability potentially affects all TCP applications, the only affected application observed so far is the HTTP server.
An attacker could exploit this vulnerability by sending specific HTTP requests at a sustained rate to a reachable IP address of the affected software. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition on an affected device. (CVE-2018-0282)
Please see the included Cisco BIDs and Cisco Security Advisory for more information
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvg39082See Also
Plugin Details
Severity: Medium
ID: 123789
File Name: cisco-sa-20190109-tcp.nasl
Version: 1.10
Type: local
Family: CISCO
Published: 4/5/2019
Updated: 1/8/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: High
Base Score: 7.1
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2018-0282
CVSS v3
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:ios_xe
Required KB Items: Host/Cisco/IOS-XE/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 3/27/2019
Vulnerability Publication Date: 3/27/2019
Reference Information
CVE: CVE-2018-0282