Detections
Analytics
Cisco Email Security Appliance URL Filtering Bypass (cisco-sa-esa-url-bypass-zZtugtg3)
medium Nessus Plugin ID 141352
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Synopsis
The remote device is missing a vendor-supplied security patch.Description
According to its self-reported version, Cisco Email Security Appliance (ESA) is affected by a URL filtering bypass vulnerability in Cisco AsyncOS Software. An unauthenticated, remote attacker can exploit this, by crafting a URL in a particular way, to bypass URL reputation filters and allow malicious URLs to pass through the device.Please see the included Cisco BIDs and Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvu50941 and CSCvu53078.See Also
Plugin Details
Severity: Medium
ID: 141352
File Name: cisco-sa-esa-url-bypass-zZtugtg3.nasl
Version: 1.6
Type: combined
Family: CISCO
Published: 10/9/2020
Updated: 6/3/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 1.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2020-3568
CVSS v3
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 5.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/h:o:cisco:email_security_appliance_%28esa%29
Required KB Items: Host/AsyncOS/Cisco Email Security Appliance/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 10/7/2020
Vulnerability Publication Date: 10/7/2020
Reference Information
CVE: CVE-2020-3568