Detections
Analytics
Cisco IOS XE Software Simple Network Management Protocol DoS (cisco-sa-snmp-dos-USxSyTk5)
high Nessus Plugin ID 137145
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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 a vulnerability in the Simple Network Management Protocol (SNMP) subsystem due to insufficient input validation when the software processes specific SNMP object identifiers. An authenticated, remote attacker can exploit this, by sending a crafted SNMP packet to an affected device, in order to cause a denial of service (DoS) condition.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 CSCvk71355 or apply the workaround mentioned in the vendor advisorySee Also
http://www.nessus.org/u?528a5571
http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-73388
Plugin Details
Severity: High
ID: 137145
File Name: cisco-sa-snmp-dos-USxSyTk5-iosxe.nasl
Version: 1.13
Type: combined
Family: CISCO
Published: 6/5/2020
Updated: 5/3/2024
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 6.3
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2020-3235
CVSS v3
Risk Factor: High
Base Score: 7.7
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/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, Host/Cisco/IOS-XE/Model
Exploit Ease: No known exploits are available
Patch Publication Date: 6/3/2020
Vulnerability Publication Date: 6/3/2020
Reference Information
CVE: CVE-2020-3235