CVE-2019-15262: cisco 5508_wireless_lan_controller_firmware Improper Input Validation

Vulnerability summary

CVE-2019-15262 is a high (CVSS 8.6) Improper Input Validation vulnerability in cisco 5508_wireless_lan_controller_firmware. EPSS estimates a 1.42% chance of exploitation in the next 30 days, higher than 72.3% of scored vulnerabilities.

Timeline

1. 16-10-2019
   PublishedVulnerability first disclosed.
2. 19-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the Secure Shell (SSH) session management for Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the SSH process is not properly deleted when an SSH connection to the device is disconnected. An attacker could exploit this vulnerability by repeatedly opening SSH connections to an affected device. A successful exploit could allow the attacker to exhaust system resources by initiating multiple SSH connections to the device that are not effectively terminated, which could result in a DoS condition.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
• CWE-404Improper Resource Shutdown or ReleaseThe product does not release or incorrectly releases a resource before it is made available for re-use.