PT-2018-1830 · Cisco · Cisco Web Security Appliance

Published 2018-08-15 · Updated 2019-10-09 · CVE-2018-0428

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Cisco Web Security Appliance (WSA) (affected versions not specified)

Description: 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 issue 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.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Privilege Management

Improper Access Control

Weakness Enumeration

CWE-269

CWE-284

Related Identifiers

BDU:2018-01432

CVE-2018-0428

Affected Products

Cisco Web Security Appliance

References · 5

• https://bdu.fstec.ru/vul/2018-01432 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-0428 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-wsa-escalation · Vendor Advisory
• http://securityfocus.com/bid/105104 · Note
• http://securitytracker.com/id/1041536 · Note