CVE Vulnerabilities

CVE-2018-0428

Improper Privilege Management

Published: Aug 15, 2018 | Modified: Oct 09, 2019
CVSS 3.x
6.7
MEDIUM
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability in the account management subsystem of Cisco Web Security Appliance (WSA) could allow an authenticated, local attacker to elevate privileges to root. The attacker must authenticate with valid administrator credentials. The vulnerability is due to improper implementation of access controls. An attacker could exploit this vulnerability by authenticating to the device as a specific user to gain the information needed to elevate privileges to root in a separate login shell. A successful exploit could allow the attacker to escape the CLI subshell and execute system-level commands on the underlying operating system as root. Cisco Bug IDs: CSCvj93548.

Weakness

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Affected Software

Name Vendor Start Version End Version
Web_security_appliance Cisco 11.0.0-fcs-250 (including) 11.0.0-fcs-250 (including)
Web_security_appliance Cisco 11.5.0-fcs-000 (including) 11.5.0-fcs-000 (including)
Web_security_appliance Cisco wsa10.0.0-959 (including) wsa10.0.0-959 (including)
Web_security_appliance Cisco wsa10.5.0-fcs-000 (including) wsa10.5.0-fcs-000 (including)

Potential Mitigations

References