Vulnerability Name:

CVE-2019-1805 (CCN-159584)

Assigned:2018-12-06
Published:2019-04-17
Updated:2020-10-13
Summary:A vulnerability in certain access control mechanisms for the Secure Shell (SSH) server implementation for Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to access a CLI instance on an affected device. The vulnerability is due to a lack of proper input- and validation-checking mechanisms for inbound SSH connections on an affected device. An attacker could exploit this vulnerability by attempting to establish an SSH connection to an affected controller. An exploit could allow the attacker to access an affected device's CLI to potentially cause further attacks. This vulnerability has been fixed in version 8.5(140.0).
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
5.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.3 Low (CVSS v2 Vector: AV:A/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.8 Medium (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-20
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2019-1805

Source: BID
Type: Third Party Advisory, VDB Entry
108003

Source: XF
Type: UNKNOWN
cisco-cve20191805-sec-bypass(159584)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20190417-wlc-ssh
Cisco Wireless LAN Controller Secure Shell Unauthorized Access Vulnerability

Source: CISCO
Type: Vendor Advisory
20190417 Cisco Wireless LAN Controller Secure Shell Unauthorized Access Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:wireless_lan_controller_software:8.3(141.0):*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:cisco:wireless_lan_controller_software:7.4.1.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco wireless lan controller software 8.3(141.0)
    cisco wireless lan controller software 7.4.1.1