OpenSSL 1.1.1h/1.1.1i/1.1.1j Certificate Chain Verification certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenSSL 1.1.1h/1.1.1i/1.1.1j. It has been classified as critical. The affected element is an unknown function of the component Certificate Chain Verification. Performing a manipulation results in certificate validation. This vulnerability is identified as CVE-2021-3450. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in OpenSSL 1.1.1h/1.1.1i/1.1.1j (Network Encryption Software). It has been classified as critical. This affects an unknown code block of the component Certificate Chain Verification. 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 released 03/26/2021. It is possible to read the advisory at openssl.org. This vulnerability is uniquely identified as CVE-2021-3450. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 211827 (Oracle Linux 9 : edk2 (ELSA-2024-12842)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.1.1k eliminates this vulnerability. Applying a patch 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.

The vulnerability is also documented in the vulnerability database at Tenable (211827). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

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: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
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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Nessus ID: 211827
Nessus Name: Oracle Linux 9 : edk2 (ELSA-2024-12842)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenSSL 1.1.1k
Patch: git.openssl.org

Timelineinfo

03/19/2021 🔍
03/26/2021 +7 days 🔍
03/26/2021 +0 days 🔍
11/26/2024 +1341 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: openssl.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3450 (🔍)
GCVE (CVE): GCVE-0-2021-3450
GCVE (VulDB): GCVE-100-171771

Entryinfo

Created: 03/26/2021 08:18
Updated: 11/26/2024 08:57
Changes: 03/26/2021 08:18 (40), 04/05/2021 12:22 (6), 04/05/2021 12:28 (18), 11/26/2024 08:57 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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