CVE-2021-34794
Cisco ASA and FTD SNMPv3 Access Control Bypass Vulnerability
Description
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.
INFO
Published Date :
Oct. 27, 2021, 7:15 p.m.
Last Modified :
Nov. 7, 2023, 3:36 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-34794
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-34794.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-snmpaccess-M6yOweq3 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-34794 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-34794 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Added CVSS V3.1 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N -
CPE Deprecation Remap by [email protected]
Aug. 16, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.14.0 from (excluding) 9.14.2.4 OR *cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.14.0 from (excluding) 9.14.2.4 -
CPE Deprecation Remap by [email protected]
Aug. 16, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.15.0 from (excluding) 9.15.1.7 OR *cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.15.0 from (excluding) 9.15.1.7 -
Initial Analysis by [email protected]
Oct. 29, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-snmpaccess-M6yOweq3 No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-snmpaccess-M6yOweq3 Vendor Advisory Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.14.0 up to (excluding) 9.14.2.4 *cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.15.0 up to (excluding) 9.15.1.7 *cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.4.0 up to (excluding) 6.4.0.13 *cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.5.0 up to (excluding) 6.6.5 *cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.7.0 up to (excluding) 6.7.0.1 Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5512-x_firmware:009.014\(001\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5512-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5512-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5505_firmware:009.014\(001\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5505_firmware:099.015\(001.033\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5505_firmware:099.016\(001.216\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5515-x_firmware:009.014\(001\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5515-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5515-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5525-x_firmware:009.014\(001\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5525-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5525-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5545-x_firmware:009.014\(001\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5545-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5545-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5555-x_firmware:009.014\(001\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5555-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5555-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5580_firmware:009.014\(001\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5580_firmware:099.015\(001.033\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5580_firmware:099.016\(001.216\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5585-x_firmware:009.014\(001\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5585-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5585-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 27, 2021
Action Type Old Value New Value Changed Description 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. 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-34794 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-34794
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.13 }} 0.02%
score
0.48934
percentile