medium4.3
CVE-2020-3516
A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device.
Impact
A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Ios Xe | before 16.9.6 from 16.12.0 before 16.12.2 from 17.1.0 before 17.1.1 Version 17.2.1 |