Cisco ASA/Firepower Threat Defense VPN denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco ASA and Firepower Threat Defense. Affected is an unknown function of the component VPN. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2022-20745. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Cisco ASA and Firepower Threat Defense (Firewall Software) (unknown version) and classified as critical. This vulnerability affects an unknown code block of the component VPN. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was presented 05/03/2022 as cisco-sa-asafdt-webvpn-dos-tzPSYern. The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2022-20745 since 11/02/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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

11/02/2021 🔍
05/03/2022 +181 days 🔍
05/03/2022 +0 days 🔍
07/28/2023 +451 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-asafdt-webvpn-dos-tzPSYern
Status: Confirmed

CVE: CVE-2022-20745 (🔍)
GCVE (CVE): GCVE-0-2022-20745
GCVE (VulDB): GCVE-100-198868

Entryinfo

Created: 05/03/2022 07:18
Updated: 07/28/2023 15:09
Changes: 05/03/2022 07:18 (39), 05/05/2022 11:02 (1), 05/05/2022 11:09 (12), 07/28/2023 15:09 (2)
Complete: 🔍
Cache ID: 216::103

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