OpenSSL 1.1.1h/1.1.1i/1.1.1j Certificate Chain Verification certificate validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.2 | $0-$5k | 0.00 |
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 pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/05/2021). The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.
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.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB 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: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Certificate validationCWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: OpenSSL 1.1.1k
Patch: git.openssl.org
Timeline
03/19/2021 🔍03/26/2021 🔍
03/26/2021 🔍
04/05/2021 🔍
Sources
Product: openssl.orgAdvisory: openssl.org
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-3450 (🔍)
Entry
Created: 03/26/2021 08:18Updated: 04/05/2021 12:28
Changes: 03/26/2021 08:18 (40), 04/05/2021 12:22 (6), 04/05/2021 12:28 (18)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.