CVE-2018-0437

Cisco Umbrella Enterprise Roaming Client and Enterprise Roaming Module Privilege Escalation Vulnerability

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the Cisco Umbrella Enterprise Roaming Client (ERC) could allow an authenticated, local attacker to elevate privileges to Administrator. To exploit the vulnerability, the attacker must authenticate with valid local user credentials. This vulnerability is due to improper implementation of file system permissions, which could allow non-administrative users to place files within restricted directories. An attacker could exploit this vulnerability by placing an executable file within the restricted directory, which when executed by the ERC client, would run with Administrator privileges.

Una vulnerabilidad en Cisco Umbrella Enterprise Roaming Client (ERC) podría permitir que un atacante local autenticado eleve privilegios a Administrator. Para explotar esta vulnerabilidad, el atacante debe autenticarse con credenciales de usuario local válidas. Esta vulnerabilidad se debe a una implementación incorrecta de los permisos del sistema de archivos, lo que podría permitir que los usuarios no administrativos ubiquen archivos en directorios restringidos. Un atacante podría explotar esta vulnerabilidad ubicando un archivo ejecutable en el directorio restringido que, cuando lo ejecute el cliente ERC, se ejecutará con privilegios Administrator.

Cisco Umbrella Roaming Client version 2.0.168 suffers from a privilege escalation vulnerability.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-27 CVE Reserved
2018-09-06 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
2024-09-16 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls
CWE-269: Improper Privilege Management

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/105292	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/45339	2024-09-16

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-priv	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"	Umbrella Enterprise Roaming Client Search vendor "Cisco" for product "Umbrella Enterprise Roaming Client"	< 2.1.118 Search vendor "Cisco" for product "Umbrella Enterprise Roaming Client" and version " < 2.1.118"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Cisco Search vendor "Cisco"		Umbrella Roaming Module Search vendor "Cisco" for product "Umbrella Roaming Module"				< 4.6.1098 Search vendor "Cisco" for product "Umbrella Roaming Module" and version " < 4.6.1098"		-		Affected
Cisco Search vendor "Cisco"		Umbrella Roaming Module Search vendor "Cisco" for product "Umbrella Roaming Module"				4.3\(1095\) Search vendor "Cisco" for product "Umbrella Roaming Module" and version "4.3\(1095\)"		anyconnect		Affected