Webauthn Authenticator up to 3.3.3 FIDO2 Authenticator access control
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.3 | $0-$5k | 0.00 |
Summary
A vulnerability marked as critical has been reported in Webauthn Authenticator up to 3.3.3. Affected is an unknown function of the component FIDO2 Authenticator. Performing a manipulation results in access control. This vulnerability is cataloged as CVE-2021-38299. There is no exploit available. It is suggested to upgrade the affected component.
Details
A vulnerability, which was classified as critical, was found in Webauthn Authenticator up to 3.3.3. This affects an unknown code of the component FIDO2 Authenticator. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was shared 09/27/2021. The advisory is shared at fzi.de. This vulnerability is uniquely identified as CVE-2021-38299 since 08/09/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.
Upgrading to version 3.3.4 eliminates this vulnerability. The upgrade is hosted for download at github.com.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
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: 🔍
Exploiting
Class: Access controlCWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
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: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Authenticator 3.3.4
Timeline
08/09/2021 🔍09/27/2021 🔍
09/27/2021 🔍
10/02/2021 🔍
Sources
Advisory: fzi.deStatus: Confirmed
CVE: CVE-2021-38299 (🔍)
GCVE (CVE): GCVE-0-2021-38299
GCVE (VulDB): GCVE-100-183369
Entry
Created: 09/27/2021 13:34Updated: 10/02/2021 14:26
Changes: 09/27/2021 13:34 (40), 10/02/2021 14:23 (1), 10/02/2021 14:26 (1)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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