CVE-2023-20067: Cisco IOS XE Software for Wireless LAN Controllers HTTP Client Profiling Denial of Service Vulnerability
First published: Thu Mar 23 2023(Updated: )
A vulnerability in the HTTP-based client profiling feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of received traffic. An attacker could exploit this vulnerability by sending crafted traffic through a wireless access point. A successful exploit could allow the attacker to cause CPU utilization to increase, which could result in a DoS condition on an affected device and could cause new wireless client associations to fail. Once the offending traffic stops, the affected system will return to an operational state and new client associations will succeed.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE | =16.10.1 | |
| Cisco IOS XE | =16.10.1e | |
| Cisco IOS XE | =16.10.1s | |
| Cisco IOS XE | =16.11.1 | |
| Cisco IOS XE | =16.11.1a | |
| Cisco IOS XE | =16.11.1b | |
| Cisco IOS XE | =16.11.1c | |
| Cisco IOS XE | =16.11.2 | |
| Cisco IOS XE | =16.12.1 | |
| Cisco IOS XE | =16.12.1s | |
| Cisco IOS XE | =16.12.1t | |
| Cisco IOS XE | =16.12.2s | |
| Cisco IOS XE | =16.12.2t | |
| Cisco IOS XE | =16.12.3 | |
| Cisco IOS XE | =16.12.3s | |
| Cisco IOS XE | =16.12.4 | |
| Cisco IOS XE | =16.12.4a | |
| Cisco IOS XE | =16.12.5 | |
| Cisco IOS XE | =16.12.6 | |
| Cisco IOS XE | =16.12.6a | |
| Cisco IOS XE | =16.12.7 | |
| Cisco IOS XE | =16.12.8 | |
| Cisco IOS XE | =17.1.1 | |
| Cisco IOS XE | =17.1.1s | |
| Cisco IOS XE | =17.1.1t | |
| Cisco IOS XE | =17.1.2 | |
| Cisco IOS XE | =17.1.3 | |
| Cisco IOS XE | =17.2.1 | |
| Cisco IOS XE | =17.2.1a | |
| Cisco IOS XE | =17.3.1 | |
| Cisco IOS XE | =17.3.2 | |
| Cisco IOS XE | =17.3.2a | |
| Cisco IOS XE | =17.3.3 | |
| Cisco IOS XE | =17.3.4 | |
| Cisco IOS XE | =17.3.4c | |
| Cisco IOS XE | =17.3.5 | |
| Cisco IOS XE | =17.3.5a | |
| Cisco IOS XE | =17.3.5b | |
| Cisco IOS XE | =17.3.6 | |
| Cisco IOS XE | =17.4.1 | |
| Cisco IOS XE | =17.5.1 | |
| Cisco IOS XE | =17.6.1 | |
| Cisco IOS XE | =17.6.2 | |
| Cisco IOS XE | =17.6.3 | |
| Cisco IOS XE | =17.6.4 | |
| Cisco IOS XE | =17.7.1 | |
| Cisco IOS XE | =17.8.1 | |
| Cisco IOS XE | =17.9.1 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Cisco IOS XE software vulnerability?
The vulnerability ID for this Cisco IOS XE software vulnerability is CVE-2023-20067.
What is the severity of CVE-2023-20067?
The severity of CVE-2023-20067 is high, with a severity value of 6.5.
What is the affected software for this vulnerability?
The affected software for this vulnerability is Cisco IOS XE Software versions 16.10.1, 16.10.1e, 16.10.1s, 16.11.1, 16.11.1a, 16.11.1b, 16.11.1c, 16.11.2, 16.12.1, 16.12.1s, 16.12.1t, 16.12.2s, 16.12.2t, 16.12.3, 16.12.3s, 16.12.4, 16.12.4a, 16.12.5, 16.12.6, 16.12.6a, 16.12.7, 16.12.8, 17.1.1, 17.1.1s, 17.1.1t, 17.1.2, 17.1.3, 17.2.1, 17.2.1a, 17.3.1, 17.3.2, 17.3.2a, 17.3.3, 17.3.4, 17.3.4c, 17.3.5, 17.3.5a, 17.3.5b, 17.3.6, 17.4.1, 17.5.1, 17.6.1, 17.6.2, 17.6.3, 17.6.4, 17.7.1, 17.8.1, and 17.9.1.
What is the vulnerability description for CVE-2023-20067?
CVE-2023-20067 is a vulnerability in the HTTP-based client profiling feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) that could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device due to insufficient input validation.
How can I fix CVE-2023-20067?
To fix CVE-2023-20067, Cisco recommends upgrading to a fixed software release, which may require a software maintenance upgrade (SMU) or a migration to a different software release.
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