CVE-2020-3419
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to join a Webex session without appearing on the participant list. This vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. A successful exploit requires the attacker to have access to join a Webex meeting, including applicable meeting join links and passwords. The attacker could then exploit this vulnerability to join meetings, without appearing in the participant list, while having full access to audio, video, chat, and screen sharing capabilities.
Overview
- CVE ID
- CVE-2020-3419
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-11-18T19:15:12
- Last Modified Date
- 2020-12-01T21:48:34
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:* | 1 | OR | 3.0 | |
| cpe:2.3:a:cisco:webex_meetings_server:3.0:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release2:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-auth-token-3vg57A5r | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-3419 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3419 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:31:42 | Added to TrackCVE | |||
| 2022-12-05 17:02:55 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-05 17:02:55 | 2020-11-18T19:15Z | 2020-11-18T19:15:12 | CVE Published Date | updated |
| 2022-12-05 17:02:55 | 2020-12-01T21:48:34 | CVE Modified Date | updated | |
| 2022-12-05 17:02:55 | Analyzed | Vulnerability Status | updated |