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Cisco Web Security Appliance Unauthorized Device Reset Vulnerability

high Nessus Plugin ID 131024

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Web Security Appliance (WSA) is affected by the following vulnerability:

 - A vulnerability in the web management interface of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform an unauthorized system reset on an affected device. The vulnerability is due to improper authorization controls for a specific URL in the web management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could have a twofold impact: the attacker could either change the administrator password, gaining privileged access, or reset the network configuration details, causing a denial of service (DoS) condition. In both scenarios, manual intervention is required to restore normal operations.

Please see the included Cisco BIDs and Cisco Security Advisory for more information

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvp51493

See Also

http://www.nessus.org/u?c654227f

http://www.nessus.org/u?aa0b2c00

Plugin Details

Severity: High

ID: 131024

File Name: cisco-sa-20191106-wsa-unauth-devreset.nasl

Version: 1.11

Type: local

Family: CISCO

Published: 11/15/2019

Updated: 5/14/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS Score Source: CVE-2019-15956

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:asyncos, cpe:/o:cisco:web_security_appliance, cpe:/a:cisco:web_security_appliance, cpe:/h:cisco:web_security_appliance

Required KB Items: Host/AsyncOS/Cisco Web Security Appliance/DisplayVersion, Host/AsyncOS/Cisco Web Security Appliance/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 11/6/2019

Vulnerability Publication Date: 11/6/2019

Reference Information

CVE: CVE-2019-15956