Cisco Adaptive Security Appliance Software SNMP Access Control (cisco-sa-asaftd-snmpaccess-M6yOweq3)

medium Nessus Plugin ID 155024

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco ASA Software is affected by a vulnerability.

- A vulnerability in the Simple Network Management Protocol version 3 (SNMPv3) access control functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to query SNMP data. This vulnerability is due to ineffective access control. An attacker could exploit this vulnerability by sending an SNMPv3 query to an affected device from a host that is not permitted by the SNMPv3 access control list. A successful exploit could allow the attacker to send an SNMP query to an affected device and retrieve information from the device. The attacker would need valid credentials to perform the SNMP query. (CVE-2021-34794)

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvv49739, CSCvw31710, CSCvw51436

See Also

http://www.nessus.org/u?973fba99

https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74773

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvv49739

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvw31710

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvw51436

Plugin Details

Severity: Medium

ID: 155024

File Name: cisco-sa-asaftd-snmpaccess-M6yOweq3-asa.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 11/10/2021

Updated: 3/31/2023

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:P/A:N

CVSS Score Source: CVE-2021-34794

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:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2021

Vulnerability Publication Date: 10/27/2021

Reference Information

CVE: CVE-2021-34794

CWE: 284

CISCO-SA: cisco-sa-asaftd-snmpaccess-M6yOweq3

IAVA: 2021-A-0526-S

CISCO-BUG-ID: CSCvv49739, CSCvw31710, CSCvw51436