Cisco ASA/Firepower Threat Defense Software ACL access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

A vulnerability classified as critical was found in Cisco ASA and Firepower Threat Defense Software (Firewall Software) (the affected version is unknown). This vulnerability affects an unknown code of the component ACL Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect integrity. CVE summarizes:

Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should be denied to flow through an affected device. These vulnerabilities are due to a logic error that could occur when the affected software constructs and applies per-user-override rules. An attacker could exploit these vulnerabilities by connecting to a network through an affected device that has a vulnerable configuration. A successful exploit could allow the attacker to bypass the interface ACL and access resources that would should be protected.

The weakness was shared 11/01/2023 as cisco-sa-asaftd-ac-acl-bypass-bwd7q6Gb. The advisory is available at sec.cloudapps.cisco.com. This vulnerability was named CVE-2023-20245 since 10/27/2022. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/01/2023). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

The entry VDB-244235 is related to this item.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔒
VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.8
CNA Vector (Cisco Systems, Inc.): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/27/2022 CVE reserved
11/01/2023 +370 days Advisory disclosed
11/01/2023 +0 days VulDB entry created
11/29/2023 +28 days VulDB entry last update

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-asaftd-ac-acl-bypass-bwd7q6Gb
Status: Confirmed

CVE: CVE-2023-20245 (🔒)
See also: 🔒

Entryinfo

Created: 11/01/2023 18:18
Updated: 11/29/2023 15:01
Changes: 11/01/2023 18:18 (49), 11/29/2023 15:01 (1)
Complete: 🔍
Cache ID: 18:4A7:103

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