CVE-2018-0428

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.

CVSS v3.0 6.7 MEDIUM
CVSS v2.0 7.2 HIGH

6.7^/10

CVSS v3.0 : MEDIUM

Vector : AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-wsa-escalation	Vendor Advisory
http://www.securityfocus.com/bid/105104	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041536	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:h:cisco:web_security_appliance:11.5.0-fcs-000:::::::*
	cpe:2.3:h:cisco:web_security_appliance:wsa10.5.0-fcs-000:::::::*
	cpe:2.3:h:cisco:web_security_appliance:11.0.0-fcs-250:::::::*
	cpe:2.3:h:cisco:web_security_appliance:wsa10.0.0-959:::::::*

Information

Published : 2018-08-15 13:29

Updated : 2019-10-09 16:32

NVD link : CVE-2018-0428

Mitre link : CVE-2018-0428

JSON object : View

CWE

CWE-269

Improper Privilege Management

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Products Affected

cisco

web_security_appliance

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