CVE-2018-0226 Details

CVE-2018-0226

Published: 2018-05-02
Last Modified: 2019-10-09
CVE Author: NIST National Vulnerability Database
CVE Assigner: psirt@cisco.com
Summary

A vulnerability in the assignment and management of default user accounts for Secure Shell (SSH) access to Cisco Aironet 1800, 2800, and 3800 Series Access Points that are running Cisco Mobility Express Software could allow an authenticated, remote attacker to gain elevated privileges on an affected access point. The vulnerability exists because the Cisco Mobility Express controller of the affected software configures the default SSH user account for an access point to be the first SSH user account that was created for the Mobility Express controller, if an administrator added user accounts directly to the controller instead of using the default configuration or the SSH username creation wizard. Although the user account has read-only privileges for the Mobility Express controller, the account could have administrative privileges for an associated access point. An attacker who has valid user credentials for an affected controller could exploit this vulnerability by using the default SSH user account to authenticate to an affected access point via SSH. A successful exploit could allow the attacker to log in to the affected access point with administrative privileges and perform arbitrary administrative actions. This vulnerability affects the following Cisco products: Aironet 1800 Series Access Points that are running Cisco Mobility Express Software Releases 8.2.121.0 through 8.5.105.0, Aironet 2800 Series Access Points that are running Cisco Mobility Express Software Releases 8.3.102.0 through 8.5.105.0, Aironet 3800 Series Access Points that are running Cisco Mobility Express Software Releases 8.3.102.0 through 8.5.105.0. Cisco Bug IDs: CSCva68116.

Analysis
Common Vulnerability Score System v2.0
Severity Medium
Base Score 6/10
Exploit Score 6.8/10
Access Vector Network
Access Complexity Medium
Authentication Single
Impact Score 6.4/10
Confidentiality Impact Partial
Availability Impact Partial
Integrity Impact Partial
Vector String AV:N/AC:M/Au:S/C:P/I:P/A:P
Common Vulnerability Score System v3.1
Severity High
Base Score 7.5/10
Exploit Score 1.6/10
Access Vector Network
Access Complexity High
Privileges Required Low
Impact Score 5.9/10
Confidentiality Impact High
Availability Impact High
Integrity Impact High
Scope Unchanged
User Interaction None
Vector String CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:o:cisco:mobility_express_software:8.3\(90.65\):*:*:* Yes - -
cpe:2.3:o:cisco:mobility_express_software:8.4\(1.65\):*:*:*: Yes - -
References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-
http://www.securitytracker.com/id/1040817
http://www.securityfocus.com/bid/104124

CVE ID
CVE-2018-0226
Published
2018-05-02
Modified
2019-10-09
CVSSv2.0
Medium
CVSSv3.1
High
PCI Compliance
Fail
US-CERT Alert
No
CWE
CWE Pending

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