OpenSSL 3.0.0/3.0.1/3.0.2 OCSP Response OCSP_basic_verify certificate validation

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
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7.0$0-$5k0.00

A vulnerability was found in OpenSSL 3.0.0/3.0.1/3.0.2 (Network Encryption Software). It has been classified as critical. This affects the function OCSP_basic_verify of the component OCSP Response Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 05/03/2022. The advisory is shared at openssl.org. This vulnerability is uniquely identified as CVE-2022-1343 since 04/13/2022. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/03/2022). MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 3.0.3 eliminates this vulnerability. Applying the patch 2eda98790c5c2741d76d23cc1e74b0dc4f4b391a is able to eliminate this problem. The bugfix is ready for download at git.openssl.org. The best possible mitigation is suggested to be upgrading to the latest version.

Productinfo

Type

Name

Version

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: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
ATT&CK: T1587.003

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: 🔍

Upgrade: OpenSSL 3.0.3
Patch: 2eda98790c5c2741d76d23cc1e74b0dc4f4b391a

Timelineinfo

04/13/2022 🔍
05/03/2022 +20 days 🔍
05/03/2022 +0 days 🔍
05/05/2022 +2 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: openssl.org
Status: Confirmed

CVE: CVE-2022-1343 (🔍)

Entryinfo

Created: 05/03/2022 22:50
Updated: 05/05/2022 14:46
Changes: 05/03/2022 22:50 (42), 05/05/2022 14:46 (1)
Complete: 🔍

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