CVE-2017-12373

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the TLS protocol implementation of legacy Cisco ASA 5500 Series (ASA 5505, 5510, 5520, 5540, and 5550) devices could allow an unauthenticated, remote attacker to access sensitive information, aka a Return of Bleichenbacher's Oracle Threat (ROBOT) attack. An attacker could iteratively query a server running a vulnerable TLS stack implementation to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions. Cisco Bug IDs: CSCvg97652.

Una vulnerabilidad en la implementación del protocolo TLS de dispositivos heredados Cisco ASA 5500 Series (ASA 5505, 5510, 5520, 5540 y 5550)podría permitir que un atacante remoto no autenticado acceda a información sensible. Esto también se conoce como ataque ROBOT (Return of Bleichenbacher's Oracle Threat). Un atacante podría consultar repetidamente un servidor que ejecuta una implementación de la pila TLS vulnerable para realizar operaciones criptoanalíticas que podrían permitir la descodificación de sesiones TLS previamente capturadas. Cisco Bug IDs: CSCvg97652.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-08-03 CVE Reserved
2017-12-15 CVE Published
2023-05-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-203: Observable Discrepancy

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/102170	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171212-bleichenbacher	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"	Adaptive Security Appliance 5505 Firmware Search vendor "Cisco" for product "Adaptive Security Appliance 5505 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Adaptive Security Appliance 5505 Search vendor "Cisco" for product "Adaptive Security Appliance 5505"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance 5510 Firmware Search vendor "Cisco" for product "Adaptive Security Appliance 5510 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Adaptive Security Appliance 5510 Search vendor "Cisco" for product "Adaptive Security Appliance 5510"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance 5520 Firmware Search vendor "Cisco" for product "Adaptive Security Appliance 5520 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Adaptive Security Appliance 5520 Search vendor "Cisco" for product "Adaptive Security Appliance 5520"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance 5540 Firmware Search vendor "Cisco" for product "Adaptive Security Appliance 5540 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Adaptive Security Appliance 5540 Search vendor "Cisco" for product "Adaptive Security Appliance 5540"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance 5550 Firmware Search vendor "Cisco" for product "Adaptive Security Appliance 5550 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Adaptive Security Appliance 5550 Search vendor "Cisco" for product "Adaptive Security Appliance 5550"	-	-	Safe