Vulnerability Description
A vulnerability in the self-healing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points could allow an authenticated, local attacker to escape the restricted controller shell and execute arbitrary commands on the underlying operating system of the access point. This vulnerability is due to improper checks throughout the restart of certain system processes. An attacker could exploit this vulnerability by logging on to an affected device and executing certain CLI commands. A successful exploit could allow the attacker to execute arbitrary commands on the underlying OS as root. To successfully exploit this vulnerability, an attacker would need valid credentials for a privilege level 15 user of the wireless controller.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xe | 17.6.1 |
| Cisco | Catalyst 9105 | - |
| Cisco | Catalyst 9105Axi | - |
| Cisco | Catalyst 9105Axw | - |
| Cisco | Catalyst 9115 | - |
| Cisco | Catalyst 9115 Ap | - |
| Cisco | Catalyst 9115Axe | - |
| Cisco | Catalyst 9115Axi | - |
| Cisco | Catalyst 9117 | - |
| Cisco | Catalyst 9117 Ap | - |
| Cisco | Catalyst 9117Axi | - |
| Cisco | Catalyst 9120 | - |
| Cisco | Catalyst 9120 Ap | - |
| Cisco | Catalyst 9120Axe | - |
| Cisco | Catalyst 9120Axi | - |
| Cisco | Catalyst 9120Axp | - |
| Cisco | Catalyst 9124 | - |
| Cisco | Catalyst 9124Axd | - |
| Cisco | Catalyst 9124Axi | - |
| Cisco | Catalyst 9130 | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-eVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-eVendor Advisory
FAQ
What is CVE-2022-20855?
CVE-2022-20855 is a vulnerability with a CVSS score of 7.9 (HIGH). A vulnerability in the self-healing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points could allow an authenticated, local attacker to escape the restri...
How severe is CVE-2022-20855?
CVE-2022-20855 has been rated HIGH with a CVSS base score of 7.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-20855?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco Catalyst 9105, Cisco Catalyst 9105Axi, Cisco Catalyst 9105Axw, Cisco Catalyst 9115.