Cisco Email Security Appliance MP3 Content Filter Bypass (cisco-sa-20191120-esa-mp3-bypass)

medium Nessus Plugin ID 139068

Language:

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 vulnerability in the MP3 detection engine of Cisco AsyncOS Software due to improper validation of certain MP3 file types. An unauthenticated, remote attacker can exploit this, by sending a crafted MP3 file through the targeted device, in order to bypass configured content filters on 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 ID CSCvh88851

Plugin Details

Severity: Medium

ID: 139068

File Name: cisco-sa-20191120-esa-mp3-bypass.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 7/29/2020

Updated: 6/3/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2019-15971

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

Required KB Items: Host/AsyncOS/Cisco Email Security Appliance/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 11/20/2019

Vulnerability Publication Date: 11/20/2019

Reference Information

CVE: CVE-2019-15971

CWE: 20

CISCO-SA: cisco-sa-20191120-esa-mp3-bypass

IAVA: 2019-A-0368-S

CISCO-BUG-ID: CSCvh88851

Detections

Analytics