CVE-2017-12309

Severity Score

5.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to conduct a HTTP response splitting attack. The vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker could exploit this vulnerability by injecting malicious HTTP headers, controlling the response body, or splitting the response into multiple responses. An exploit could allow the attacker to perform cross-site scripting attacks, cross-user defacement, web cache poisoning, and similar exploits. Cisco Bug IDs: CSCvf16705.

Una vulnerabilidad en Cisco Email Security Appliance (ESA) podría permitir que un atacante remoto no autenticado lleve a cabo un ataque de separación de respuestas HTTP. La vulnerabilidad se debe a que la aplicación o su entorno fracasan a la hora de sanitizar los valores de entrada. Un atacante podría explotar esta vulnerabilidad inyectando cabeceras HTTP maliciosas, controlando el cuerpo de la respuesta o dividiendo la respuesta en múltiples respuestas. Un exploit podría permitir que el atacante realice ataques de Cross-Site Scripting, desfiguración cruzada de usuario, envenenamiento de caché DNS o exploits similares. Cisco Bug IDs: CSCvf16705.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-08-03 CVE Reserved
2017-11-16 CVE Published
2023-05-19 EPSS Updated
2024-08-05 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

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/101928	Third Party Advisory
http://www.securitytracker.com/id/1039831	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-esa	2019-10-09

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"				10.0.2-020 Search vendor "Cisco" for product "Email Security Appliance Firmware" and version "10.0.2-020"		-		Affected
Cisco Search vendor "Cisco"		Email Security Appliance Firmware Search vendor "Cisco" for product "Email Security Appliance Firmware"				11.0.0-105 Search vendor "Cisco" for product "Email Security Appliance Firmware" and version "11.0.0-105"		-		Affected