Cisco Umbrella Virtual Appliance Key-based SSH Authentication hard-coded key

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.5 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Cisco Umbrella Virtual Appliance. This vulnerability affects unknown code of the component Key-based SSH Authentication Handler. The manipulation leads to hard-coded key. This vulnerability is documented as CVE-2022-20773. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.
Details
A vulnerability was found in Cisco Umbrella Virtual Appliance (affected version unknown) and classified as problematic. This issue affects an unknown functionality of the component Key-based SSH Authentication Handler. The manipulation with an unknown input leads to a hard-coded key vulnerability. Using CWE to declare the problem leads to CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. Impacted is confidentiality.
The weakness was released 04/22/2022 as cisco-sa-uva-static-key-6RQTRs4c. It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2022-20773 since 11/02/2021. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.
Upgrading eliminates this vulnerability.
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Product
Vendor
Name
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.6VulDB Meta Temp Score: 5.5
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 7.5
CNA Vector (Cisco Systems, Inc.): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Hard-coded keyCWE: CWE-321 / CWE-320
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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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/02/2021 🔍04/22/2022 🔍
04/22/2022 🔍
04/28/2022 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-uva-static-key-6RQTRs4c
Status: Confirmed
CVE: CVE-2022-20773 (🔍)
GCVE (CVE): GCVE-0-2022-20773
GCVE (VulDB): GCVE-100-198311
Entry
Created: 04/22/2022 03:07Updated: 04/28/2022 09:17
Changes: 04/22/2022 03:07 (48), 04/28/2022 09:17 (1)
Complete: 🔍
Cache ID: 216::103
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