PT-2019-2129 · Cisco · Cisco Wireless Lan Controller (Wlc)+1

Published 2019-04-17 · Updated 2020-10-13 · CVE-2019-1805

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Cisco Wireless LAN Controller (WLC) Software versions prior to 8.5(140.0)

Description A vulnerability in the Secure Shell (SSH) server implementation could allow an unauthenticated, adjacent attacker to access a CLI instance on an affected device. The issue is due to a lack of proper input- and validation-checking mechanisms for inbound SSH connections. An attacker could exploit this by attempting to establish an SSH connection to an affected controller, potentially allowing access to the device's CLI and enabling further attacks.

Recommendations For versions prior to 8.5(140.0), update to version 8.5(140.0) or later to resolve the issue. As a temporary workaround, consider restricting access to the SSH server implementation until a patch is applied.

Fix

Improper Access Control

RCE

Weakness Enumeration

CWE-284

CWE-20

Related Identifiers

BDU:2019-01890

CVE-2019-1805

Affected Products

Cisco Wireless Lan Controller (Wlc)

Cisco Wls

References · 5

• https://bdu.fstec.ru/vul/2019-01890 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-wlc-ssh · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1805 · Security Note
• https://osv.dev/vulnerability/CVE-2019-1805 · Vendor Advisory
• http://securityfocus.com/bid/108003 · Note