Cisco Expressway/TelePresence VCS Cluster Database API path traversal

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.9 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Cisco Expressway and TelePresence VCS. It has been declared as critical. The affected element is an unknown function of the component Cluster Database API. Executing a manipulation can lead to path traversal. This vulnerability is registered as CVE-2022-20754. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.
Details
A vulnerability was found in Cisco Expressway and TelePresence VCS (Unified Communication Software) (version now known). It has been declared as critical. This vulnerability affects some unknown processing of the component Cluster Database API. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-23. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was published 03/04/2022 as cisco-sa-expressway-filewrite-87Q5YRk. The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2022-20754. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.
Upgrading eliminates this vulnerability.
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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: 7.2VulDB Meta Temp Score: 6.9
VulDB Base Score: 7.2
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Path traversalCWE: CWE-23 / CWE-22
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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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/02/2021 🔍03/04/2022 🔍
03/04/2022 🔍
03/06/2022 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-expressway-filewrite-87Q5YRk
Status: Confirmed
CVE: CVE-2022-20754 (🔍)
GCVE (CVE): GCVE-0-2022-20754
GCVE (VulDB): GCVE-100-194200
Entry
Created: 03/04/2022 08:56Updated: 03/06/2022 13:58
Changes: 03/04/2022 08:56 (37), 03/06/2022 13:58 (1)
Complete: 🔍
Cache ID: 216::103
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