| 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. |
|---|---|---|
| 6.0 | $0-$5k | 0.29 |
A vulnerability was found in ARM Mbed TLS up to 2.7.17/2.16.8/2.23.x. It has been declared as critical. Affected by this vulnerability is some unknown processing of the component Certificate Revocation Handler. The manipulation with an unknown input leads to a weak authentication vulnerability. The CWE definition for the vulnerability is CWE-295. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock.
The weakness was released 07/19/2021. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-36425 since 07/19/2021. The exploitation appears to be easy. Access to the local network is required for this attack to succeed. The exploitation doesn’t need any form of authentication. 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.
Upgrading to version 2.7.17, 2.16.8 or 2.24.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Vendor
Name
VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Weak authentication
CWE: CWE-295
ATT&CK: T1587.003
Local: No
Remote: Partially
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | unlock | unlock | unlock | unlock |
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| Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Status: 🔍
0-Day Time: 🔒
Upgrade: Mbed TLS 2.7.17/2.16.8/2.24.0
Patch: github.com
07/19/2021 Advisory disclosed
07/19/2021 CVE assigned
07/19/2021 VulDB entry created
07/22/2021 VulDB last updateAdvisory: github.com
Status: Confirmed
CVE: CVE-2020-36425 (🔒)
Created: 07/19/2021 21:43
Updated: 07/22/2021 10:17
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍
Comments
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