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CVE-2018-0428

CVE information

Published

4 years ago

Last Modified

3 years ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

Medium

Impact Analysis

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 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..

CVSSv2.0 Score

Severity
High
Base Score
7.2/10
Exploit Score
3.9/10
Access Vector
Local
Access Complexity
Low
Authentication Required
None
Impact Score
10/10
Confidentiality Impact
Complete
Availability Impact
Complete
Integrity Impact
Complete

CVSSv3.1 Score

Severity
Medium
Base Score
6.7/10
Exploit Score
0.8/10
Access Vector
Local
Access Complexity
Low
Privileges Required
High
Impact Score
5.9/10
Confidentiality Impact
High
Availability Impact
High
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:h:cisco:web_security_appliance:11.0.0-fcs-250:*:*:*:
  Yes
- -
cpe:2.3:h:cisco:web_security_appliance:11.5.0-fcs-000:*:*:*:
  Yes
- -
cpe:2.3:h:cisco:web_security_appliance:wsa10.0.0-959:*:*:*:*
  Yes
- -
cpe:2.3:h:cisco:web_security_appliance:wsa10.5.0-fcs-000:*:*
  Yes
- -