// For flags

CVE-2019-15971

Cisco Email Security Appliance MP3 Content Filter Bypass Vulnerability

Severity Score

4.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the MP3 detection engine of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper validation of certain MP3 file types. An attacker could exploit this vulnerability by sending a crafted MP3 file through the targeted device. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.

Una vulnerabilidad en el motor de detección de MP3 del Software Cisco AsyncOS para Cisco Email Security Appliance (ESA), podría permitir a un atacante remoto no autenticado omitir los filtros de contenido configurados en el dispositivo. La vulnerabilidad es debido a una comprobación inapropiada de ciertos tipos de archivos MP3. Un atacante podría explotar esta vulnerabilidad al enviar un archivo MP3 diseñado a través del dispositivo de destino. Una explotación con éxito podría permitir al atacante omitir los filtros de contenido configurados que normalmente caerían en el correo electrónico.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2019-09-06 CVE Reserved
  • 2019-11-26 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-11-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
  • CWE-345: Insufficient Verification of Data Authenticity
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Email Security Appliance Firmware
Search vendor "Cisco" for product "Email Security Appliance Firmware"
 < 13.0
Search vendor "Cisco" for product "Email Security Appliance Firmware" and version " < 13.0"
-
Affected