Detections
Analytics
Cisco NX-OS Telnet Packet Header Handling Remote DoS (cisco-sa-20170315-nss)
medium Nessus Plugin ID 99371
Language:
Synopsis
The remote device is missing a vendor-supplied security patch.Description
According to its version and configuration, the Cisco NX-OS software running on the remote device is affected by a denial of service vulnerability in the Telnet remote login functionality due to improper validation of Telnet packet headers. An unauthenticated, remote attacker can exploit this, via specially crafted Telnet packets, to cause the Telnet process to restart.Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCux46778.See Also
Plugin Details
Severity: Medium
ID: 99371
File Name: cisco-sa-20170315-nss-nxos.nasl
Version: 1.9
Type: combined
Family: CISCO
Published: 4/14/2017
Updated: 11/13/2019
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 1.4
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:nx-os
Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Device, Host/Cisco/NX-OS/Model
Exploit Ease: No known exploits are available
Patch Publication Date: 3/15/2017
Vulnerability Publication Date: 3/15/2017
Reference Information
CVE: CVE-2017-3878
BID: 96927