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Cisco Web Security Appliance Privilege Escalation Vulnerability

cisco-sa-20180815-wsa-escalation · Medium · Published · Updated

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. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-wsa-escalation

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2018-0428
Cisco Bug IDsCSCvj93548
CVSS ScoreBase 6.7
Base 6.7 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Web Security Appliance (WSA), Cisco Secure Web Appliance

Related Products

Product CVE Evidence
Cisco Web Security Appliance (WSA) CVE-2018-0428 Cisco OpenVuln
Cisco Secure Web Appliance CVE-2018-0428 Cisco OpenVuln