// For flags

CVE-2020-3117

Cisco Web Security Appliance and Cisco Content Security Management Appliance HTTP Header Injection Vulnerability

Severity Score

4.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the API Framework of Cisco AsyncOS for Cisco Web Security Appliance (WSA) and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to inject crafted HTTP headers in the web server's response. The vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user to access a crafted URL and receive a malicious HTTP response. A successful exploit could allow the attacker to inject arbitrary HTTP headers into valid HTTP responses sent to a user's browser.

Una vulnerabilidad en el API Framework de Cisco AsyncOS para Cisco Web Security Appliance (WSA) y Cisco Content Security Management Appliance (SMA), podría permitir a un atacante no autenticado remoto inyectar encabezados HTTP diseñados en la respuesta del servidor web. La vulnerabilidad es debido a una comprobación insuficiente de entrada del usuario. Un atacante podría explotar esta vulnerabilidad al persuadir a un usuario para acceder a una URL creada y recibir una respuesta HTTP maliciosa. Una explotación con éxito podría permitir al atacante inyectar encabezados HTTP arbitrarios en respuestas HTTP válidas enviadas al navegador de un usuario

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
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:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-09-23 CVE Published
  • 2023-12-25 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
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"
 Content Security Management Appliance
Search vendor "Cisco" for product "Content Security Management Appliance"
 < 13.0.0-187
Search vendor "Cisco" for product "Content Security Management Appliance" and version " < 13.0.0-187"
-
Affected
Cisco
Search vendor "Cisco"
 Web Security Appliance
Search vendor "Cisco" for product "Web Security Appliance"
 11.8.0-382
Search vendor "Cisco" for product "Web Security Appliance" and version "11.8.0-382"
-
Affected
Cisco
Search vendor "Cisco"
 Web Security Appliance
Search vendor "Cisco" for product "Web Security Appliance"
 12.0.1-268
Search vendor "Cisco" for product "Web Security Appliance" and version "12.0.1-268"
-
Affected