CVE-2017-12278

Severity Score

6.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Wireless LAN Controllers could allow an authenticated, remote attacker to cause an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to a memory leak that occurs on an affected device after the device fails to deallocate a buffer that is used when certain MIBs are polled. An attacker who knows the SNMP Version 2 SNMP Read string or has valid SNMP Version 3 credentials for an affected device could repeatedly poll the affected MIB object IDs (OIDs) and consume available memory on the device. When memory is sufficiently depleted on the device, the device will restart, resulting in a DoS condition. Cisco Bug IDs: CSCvc71674.

Una vulnerabilidad en el subsistema Simple Network Management Protocol (SNMP) de Cisco Wireless LAN Controllers podría permitir que un atacante remoto autenticado provoque que el dispositivo afectado se reinicie, provocando una denegación de servicio (DoS) en consecuencia. La vulnerabilidad se debe a una fuga de memoria que ocurre en un dispositivo afectado después de que el dispositivo falle a la hora de desasignar un búfer que se utiliza cuando algunas MIB están encuestadas. Un atacante que conozca la cadena SNMP Read Versión 2 o tenga credenciales SNMP Versión 3 para un dispositivo afectado podría encuestar repetidamente los ID de los objetos (OID) MIB afectados y consumir la memoria disponible en el dispositivo. Cuando la memoria se agota lo suficiente en el dispositivo, el dispositivo se reiniciará, provocando una denegación de servicio (DoS). Cisco Bug IDs: CSCvc71674.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Adjacent

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-08-03 CVE Reserved
2017-11-02 CVE Published
2023-03-26 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-772: Missing Release of Resource after Effective Lifetime

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/101642	Third Party Advisory
http://www.securitytracker.com/id/1039712	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-wlc1	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"	Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Wireless Lan Controller Search vendor "Cisco" for product "Wireless Lan Controller"	-	-	Safe