CVE-2020-3273
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
A vulnerability in the 802.11 Generic Advertisement Service (GAS) frame processing function of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS). The vulnerability is due to incomplete input validation of the 802.11 GAS frames that are processed by an affected device. An attacker could exploit this vulnerability by sending a crafted 802.11 GAS frame over the air to an access point (AP), and that frame would then be relayed to the affected WLC. Also, an attacker with Layer 3 connectivity to the WLC could exploit this vulnerability by sending a malicious 802.11 GAS payload in a Control and Provisioning of Wireless Access Points (CAPWAP) packet to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS.
Overview
- CVE ID
- CVE-2020-3273
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-04-15T21:15:36
- Last Modified Date
- 2020-04-29T15:33:15
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:5508_wireless_controller_firmware:8.5\(151.0\):*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:5508_wireless_controller_firmware:8.10\(204.92\):*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:5508_wireless_controller:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:5520_wireless_controller_firmware:8.5\(151.0\):*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:5520_wireless_controller_firmware:8.10\(204.92\):*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:5520_wireless_controller:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-gas-dos-8FsE3AWH | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-3273 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3273 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:35:05 | Added to TrackCVE | |||
| 2022-12-04 14:57:48 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-04 14:57:48 | 2020-04-15T21:15Z | 2020-04-15T21:15:36 | CVE Published Date | updated |
| 2022-12-04 14:57:48 | 2020-04-29T15:33:15 | CVE Modified Date | updated | |
| 2022-12-04 14:57:48 | Analyzed | Vulnerability Status | updated |