CVE-2019-1654: Cisco Aironet Series Access Points Development Shell Access Vulnerability
First published: Wed Apr 17 2019(Updated: )
A vulnerability in the development shell (devshell) authentication for Cisco Aironet Series Access Points (APs) running the Cisco AP-COS operating system could allow an authenticated, local attacker to access the development shell without proper authentication, which allows for root access to the underlying Linux OS. The attacker would need valid device credentials. The vulnerability exists because the software improperly validates user-supplied input at the CLI authentication prompt for development shell access. An attacker could exploit this vulnerability by authenticating to the device and entering crafted input at the CLI. A successful exploit could allow the attacker to access the AP development shell without proper authentication, which allows for root access to the underlying Linux OS. Software versions prior to 8.3.150.0, 8.5.135.0, and 8.8.100.0 are affected.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| Any of | ||
| Cisco AP-COS | <8.3.150.0 | |
| Cisco AP-COS | >=8.4.100.0<8.5.135.0 | |
| Cisco AP-COS | >=8.5.140.0<8.8.100.0 | |
| Any of | ||
| Cisco Aironet 1540 Firmware | ||
| Cisco Aironet 1560 | ||
| Cisco Aironet 1800 Firmware | ||
| Cisco Aironet 2800 | ||
| Cisco Aironet 3800p | ||
| Cisco AP-COS | <8.3.150.0 | |
| Cisco AP-COS | >=8.4.100.0<8.5.135.0 | |
| Cisco AP-COS | >=8.5.140.0<8.8.100.0 | |
| Cisco Aironet 1540 Firmware | ||
| Cisco Aironet 1560 | ||
| Cisco Aironet 1800 Firmware | ||
| Cisco Aironet 2800 | ||
| Cisco Aironet 3800p |
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Reference Links
Frequently Asked Questions
What is CVE-2019-1654?
CVE-2019-1654 is a vulnerability in the development shell (devshell) authentication for Cisco Aironet Series Access Points.
What is the severity of CVE-2019-1654?
CVE-2019-1654 has a severity rating of 7.8 (high).
How does CVE-2019-1654 affect Cisco AP-COS?
CVE-2019-1654 affects Cisco AP-COS versions 8.3.150.0 up to 8.8.100.0.
How can an attacker exploit CVE-2019-1654?
An authenticated, local attacker can exploit CVE-2019-1654 by accessing the development shell without proper authentication, leading to root access.
Where can I find more information about CVE-2019-1654?
You can find more information about CVE-2019-1654 at the following references: [SecurityFocus](http://www.securityfocus.com/bid/107991) and [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aironet-shell).
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