Cisco Expressway Software Unauthorized Access Information Disclosure Vulnerability (Cisco Cisco TelePresence Video Communication Server (VCS) Expressway)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.38 % · percentile 72 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Traversal Using Relays around NAT (TURN) server component of Cisco Expressway software could allow an unauthenticated, remote attacker to bypass security controls and send network traffic to restricted destinations. The vulnerability is due to improper validation of specific connection information by the TURN server within the affected software. An attacker could exploit this issue by sending specially crafted network traffic to the affected software. A successful exploit could allow the attacker to send traffic through the affected software to destinations beyond the application, possibly allowing the attacker to gain unauthorized network access.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | cisco |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | NVD · psirt@cisco.com (Secondary) |
| CVSS 2.0 | MEDIUM 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-24753
- GCVE · GCVE-0-2020-3482
Affected configurations (NVD CPE)
cpe:2.3:a:cisco:expressway:*:*:*:*:*:*:*:*< x12.6.3cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:*< x12.6.3
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco TelePresence Video Communication Server (VCS) Expressway | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |