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

published 2018-10-05 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-1260

cvss: 7.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits: 1; Exploit-DB

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.

Patch / fix

fixed in 2

cisco umbrella_enterprise_roaming_client 2.1.118
cisco umbrella_roaming_module 4.6.1098

Timeline

2018-09-06 First public exploit (EDB-45339)
2018-10-05 Published

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 23 mo ago (2024-11-25)

Exploit prediction

1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-45339 Cisco Umbrella Roaming Client 2.0.168 - Local Privilege Escalation local, 2018-09-06

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

Cisco Cisco Umbrella

Classification

Weakness

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

References

exploit-db.com /exploits/45339/
exploit, third-party-advisory, vdb-entry
tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-priv
vendor-advisory
securityfocus.com /bid/105292
vdb-entry, third-party-advisory

Sources

CVE List CVE-2018-0437
NVD CVE-2018-0437

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary