Cisco Umbrella Enterprise Roaming Client Privilege Escalation Vulnerability

Published 8 y ago 2018-10-05 · modified 4 mo ago 2026-06-17 · JSON

CVSS

7.8

v3.0 · NVD

CISA KEV

not known exploited

EPSS

1.4%

percentile 72%

Public exploits

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.

CISA SSVC assessment

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

Exploit prediction (EPSS)

1.37% probability of exploitation in the next 30 days, higher than 72% of all scored CVEs.

Exploits and detections

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-20 Improper Input Validation
CWE-269 Improper Privilege Management

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-file-read · vendor-advisory, x_refsource_CISCO, x_transferred
securityfocus.com /bid/105286 · vdb-entry, x_refsource_BID, x_transferred
exploit-db.com /exploits/45339/ · exploit, x_refsource_EXPLOIT-DB, x_transferred

Sources

CVE List: CVE-2018-0438
NVD: CVE-2018-0438

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary