CVE-2022-20855

CVSS V2 None CVSS V3 Medium 6.7
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.
Overview
  • CVE ID
  • CVE-2022-20855
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-09-30T19:15:12
  • Last Modified Date
  • 2022-10-27T15:47:45
Weakness Enumerations
CWE URL
CWE-78 http://cwe.mitre.org/data/definitions/78.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:ios_xe:17.6.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:catalyst_9105:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9105axi:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9105axw:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9115:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9115_ap:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9115axe:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9115axi:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9117:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9117_ap:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9117axi:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9120:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9120_ap:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9120axe:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9120axi:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9120axp:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9124:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9124axd:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9124axi:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9130:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9130_ap:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9130axe:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9130axi:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:* 0 OR
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 6.7
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewc-priv-esc-nderYLtK
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2022-20855
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20855
History
Created Old Value New Value Data Type Notes
2022-09-30 20:00:12 Added to TrackCVE
2022-12-07 05:23:18 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-07 05:23:18 2022-09-30T19:15Z 2022-09-30T19:15:12 CVE Published Date updated
2022-12-07 05:23:18 2022-10-27T15:47:45 CVE Modified Date updated
2022-12-07 05:23:18 Analyzed Vulnerability Status updated