CVE-2019-15262

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.

CVSS v3 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-wlc-ssh-dos	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:cisco:5520_wireless_lan_controller_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:5520_wireless_lan_controller:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:cisco:5508_wireless_lan_controller_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:5508_wireless_lan_controller:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-10-16 19:15

Updated : 2023-12-10 13:13

NVD link : CVE-2019-15262

Mitre link : CVE-2019-15262

CVE.ORG link : CVE-2019-15262

JSON object : View

Products Affected

cisco

5508_wireless_lan_controller_firmware
5520_wireless_lan_controller_firmware
5520_wireless_lan_controller
5508_wireless_lan_controller

CWE

CWE-404

Improper Resource Shutdown or Release

CWE-20

Improper Input Validation

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