Cisco Wireless LAN Controller Secure Shell Denial of Service Vulnerability (Cisco Cisco Wireless LAN Controller (WLC))
At a glance
- Source
- NVD
- EPSS
- EPSS 1.42 % · percentile 73 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Secure Shell (SSH) session management for Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the SSH process is not properly deleted when an SSH connection to the device is disconnected. An attacker could exploit this vulnerability by repeatedly opening SSH connections to an affected device. A successful exploit could allow the attacker to exhaust system resources by initiating multiple SSH connections to the device that are not effectively terminated, which could result in a DoS condition.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 8.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | HIGH 8.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-6272
- GCVE · GCVE-0-2019-15262
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:5520_wireless_lan_controller_firmware:*:*:*:*:*:*:*:*≤ 8.5.140.0cpe:2.3:o:cisco:5508_wireless_lan_controller_firmware:*:*:*:*:*:*:*:*≤ 8.5.140.0
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Wireless LAN Controller (WLC) | affected unspecified < 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 |