VDB-198865 · CVE-2022-20742 · GCVE-0-2022-20742

Cisco ASA/Firepower Threat Defense IPsec VPN Library cryptographic issue

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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Cisco ASA and Firepower Threat Defense. The impacted element is an unknown function of the component IPsec VPN Library. This manipulation causes cryptographic issue. This vulnerability is registered as CVE-2022-20742. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Cisco ASA and Firepower Threat Defense (Firewall Software) (affected version not known). Affected by this vulnerability is some unknown functionality of the component IPsec VPN Library. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 05/03/2022 as cisco-sa-asaftd-ipsec-mitm-CKnLr4. The advisory is shared at tools.cisco.com. This vulnerability is known as CVE-2022-20742 since 11/02/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Firewall Software

Vendor

Cisco

Name

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.4
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

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-asaftd-ipsec-mitm-CKnLr4
Status: Confirmed

CVE: CVE-2022-20742 (🔍)
GCVE (CVE): GCVE-0-2022-20742
GCVE (VulDB): GCVE-100-198865

Entryinfo

Created: 05/03/2022 07:16
Updated: 07/28/2023 15:09
Changes: 05/03/2022 07:16 (39), 05/05/2022 10:34 (1), 05/05/2022 10:40 (12), 07/28/2023 15:09 (2)
Complete: 🔍
Cache ID: 216::103