CVE-2019-1743: Cisco IOS XE Software Arbitrary File Upload Vulnerability
First published: Wed Mar 27 2019(Updated: )
A vulnerability in the web UI framework of Cisco IOS XE Software could allow an authenticated, remote attacker to make unauthorized changes to the filesystem of the affected device. The vulnerability is due to improper input validation. An attacker could exploit this vulnerability by crafting a malicious file and uploading it to the device. An exploit could allow the attacker to gain elevated privileges on the affected device.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE Software | =16.2.1 | |
| Cisco IOS XE Software | =16.2.2 | |
| Cisco IOS XE Software | =16.3.1 | |
| Cisco IOS XE Software | =16.3.1a | |
| Cisco IOS XE Software | =16.3.2 | |
| Cisco IOS XE Software | =16.3.3 | |
| Cisco IOS XE Software | =16.3.4 | |
| Cisco IOS XE Software | =16.3.5 | |
| Cisco IOS XE Software | =16.3.5b | |
| Cisco IOS XE Software | =16.3.6 | |
| Cisco IOS XE Software | =16.4.1 | |
| Cisco IOS XE Software | =16.4.2 | |
| Cisco IOS XE Software | =16.4.3 | |
| Cisco IOS XE Software | =16.5.1 | |
| Cisco IOS XE Software | =16.5.1a | |
| Cisco IOS XE Software | =16.5.1b | |
| Cisco IOS XE Software | =16.5.2 | |
| Cisco IOS XE Software | =16.5.3 | |
| Cisco IOS XE Software | =16.6.1 | |
| Cisco IOS XE Software | =16.6.2 | |
| Cisco IOS XE Software | =16.6.3 | |
| Cisco IOS XE Software | =16.7.1 | |
| Cisco IOS XE Software | =16.7.1a | |
| Cisco IOS XE Software | =16.7.1b | |
| Cisco IOS XE Software | =16.8.1 | |
| Cisco IOS XE Software | =16.8.1a | |
| Cisco IOS XE Software | =16.8.1b | |
| Cisco IOS XE Software | =16.8.1c | |
| Cisco IOS XE Software | =16.8.1d | |
| Cisco IOS XE Software | =16.8.1e | |
| Cisco IOS XE Software | =16.8.1s |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2019-1743?
CVE-2019-1743 is classified as a high-severity vulnerability.
How do I fix CVE-2019-1743?
To fix CVE-2019-1743, update your Cisco IOS XE Software to a patched version that addresses the vulnerability.
Who is affected by CVE-2019-1743?
CVE-2019-1743 affects devices running certain versions of Cisco IOS XE Software.
What type of vulnerability is CVE-2019-1743?
CVE-2019-1743 is a vulnerability related to improper input validation in the web UI framework.
What could an attacker do in CVE-2019-1743?
An attacker could exploit CVE-2019-1743 to make unauthorized changes to the filesystem of the affected device.
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