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CVE-2021-34787
Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
A vulnerability in the identity-based firewall (IDFW) rule processing feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass security protections. This vulnerability is due to improper handling of network requests by affected devices configured to use object group search. An attacker could exploit this vulnerability by sending a specially crafted network request to an affected device. A successful exploit could allow the attacker to bypass access control list (ACL) rules on the device, bypass security protections, and send network traffic to unauthorized hosts.
Metrics
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CVE Modified by Cisco Systems, Inc.5/14/2024 5:15:25 AM
Action
Type
Old Value
New Value
CVE Modified by Cisco Systems, Inc.11/06/2023 10:36:25 PM
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 NIST8/16/2023 12:17:07 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.13.0 from (excluding) 9.14.3.1
OR
*cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.13.0 from (excluding) 9.14.3.1
CPE Deprecation Remap by NIST8/16/2023 12:17:07 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.9.0 from (excluding) 9.12.4.25
OR
*cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.9.0 from (excluding) 9.12.4.25
CPE Deprecation Remap by NIST8/16/2023 12:17:07 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.16.0 from (excluding) 9.16.1.28
OR
*cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.16.0 from (excluding) 9.16.1.28
CPE Deprecation Remap by NIST8/16/2023 12:17:07 PM
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) 9.15.1.17
OR
*cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.15.0 from (excluding) 9.15.1.17
Initial Analysis by NIST10/29/2021 8:31:02 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:asa_5505_firmware:009.009:*:*:*:*:*:*:*
*cpe:2.3:o:cisco:asa_5505_firmware:009.012:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:asa_5512-x_firmware:009.009:*:*:*:*:*:*:*
*cpe:2.3:o:cisco:asa_5512-x_firmware:009.012:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:asa_5515-x_firmware:009.009:*:*:*:*:*:*:*
*cpe:2.3:o:cisco:asa_5515-x_firmware:009.012:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:asa_5525-x_firmware:009.009:*:*:*:*:*:*:*
*cpe:2.3:o:cisco:asa_5525-x_firmware:009.012:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:asa_5545-x_firmware:009.009:*:*:*:*:*:*:*
*cpe:2.3:o:cisco:asa_5545-x_firmware:009.012:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:asa_5555-x_firmware:009.009:*:*:*:*:*:*:*
*cpe:2.3:o:cisco:asa_5555-x_firmware:009.012:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:asa_5580_firmware:009.009:*:*:*:*:*:*:*
*cpe:2.3:o:cisco:asa_5580_firmware:009.012:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:asa_5585-x_firmware:009.009:*:*:*:*:*:*:*
*cpe:2.3:o:cisco:asa_5585-x_firmware:009.012:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*
OR
*cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions up to (excluding) 9.8.4.40
*cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.9.0 up to (excluding) 9.12.4.25
*cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.13.0 up to (excluding) 9.14.3.1
*cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* versions from (including) 9.15.0 up to (excluding) 9.15.1.17
*cpe:2.3:a:
Added
CVSS V2
NIST (AV:N/AC:M/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
Added
CWE
NIST CWE-755
Changed
Reference Type
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-rule-bypass-ejjOgQEY No Types Assigned
A vulnerability in the identity-based firewall (IDFW) rule processing feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass security protections.
This vulnerability is due to improper handling of network requests by affected devices configured to use object group search. An attacker could exploit this vulnerability by sending a specially crafted network request to an affected devi
A vulnerability in the identity-based firewall (IDFW) rule processing feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass security protections. This vulnerability is due to improper handling of network requests by affected devices configured to use object group search. An attacker could exploit this vulnerability by sending a specially crafted network request to an affected device.
Quick Info
CVE Dictionary Entry: CVE-2021-34787 NVD
Published Date: 10/27/2021 NVD
Last Modified: 11/06/2023
Source: Cisco Systems, Inc.
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