Cisco Web Security Appliance Information Disclosure (cisco-sa-esa-wsa-sma-info-gY2AEz2H)

medium Nessus Plugin ID 149843
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote device is missing a vendor-supplied security patch


A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to access sensitive information on an affected device. The vulnerability exists because confidential information is included in HTTP requests that are exchanged between the user and the device. An attacker could exploit this vulnerability by looking at the raw HTTP requests that are sent to the interface. A successful exploit could allow the attacker to obtain some of the passwords that are configured throughout the interface.

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


Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvv98333, CSCvv98363, CSCvv98379, CSCvv98401, CSCvv98422, CSCvv98448, CSCvv99117, CSCvv99534, CSCvw03419, CSCvw03505, CSCvw04276, CSCvw35465, CSCvw36748

See Also

Plugin Details

Severity: Medium

ID: 149843

File Name: cisco-sa-esa-wsa-sma-info-gY2AEz2H_wsa.nasl

Version: 1.3

Type: combined

Family: CISCO

Published: 5/21/2021

Updated: 5/21/2021

Dependencies: cisco_wsa_version.nasl

Risk Information

CVSS Score Source: CVE-2021-1516


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/a: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: 5/5/2021

Vulnerability Publication Date: 5/5/2021

Reference Information

CVE: CVE-2021-1516