Cisco ASA/Firepower Threat Defense DTLS data authenticity

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.4 | $0-$5k | 0.00 |
Summary
A vulnerability marked as problematic has been reported in Cisco ASA and Firepower Threat Defense. Affected is an unknown function of the component DTLS Handler. This manipulation causes data authenticity. This vulnerability is tracked as CVE-2022-20795. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.
Details
A vulnerability classified as problematic was found in Cisco ASA and Firepower Threat Defense (Firewall Software) (the affected version is unknown). Affected by this vulnerability is an unknown code of the component DTLS Handler. The manipulation with an unknown input leads to a data authenticity vulnerability. The CWE definition for the vulnerability is CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. As an impact it is known to affect availability.
The weakness was disclosed 04/22/2022 as cisco-sa-vpndtls-dos-TunzLEV. It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2022-20795 since 11/02/2021. The technical details are unknown and an exploit is not publicly available.
Upgrading eliminates this vulnerability.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Type
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: 5.5VulDB Meta Temp Score: 5.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 5.8
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: Data authenticityCWE: CWE-345
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/02/2021 🔍04/22/2022 🔍
04/22/2022 🔍
07/28/2023 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-vpndtls-dos-TunzLEV
Status: Confirmed
CVE: CVE-2022-20795 (🔍)
GCVE (CVE): GCVE-0-2022-20795
GCVE (VulDB): GCVE-100-198307
Entry
Created: 04/22/2022 03:04Updated: 07/28/2023 15:11
Changes: 04/22/2022 03:04 (49), 04/28/2022 09:11 (1), 07/28/2023 15:11 (2)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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