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CVE-2018-0438

7.8 · HIGH

A vulnerability in the Cisco Umbrella Enterprise Roaming Client (ERC) could allow an authenticated, local attacker to elevate privileges to Administrator.

Published Oct 5, 2018CWE-20EPSS 1.37%

Overview

CVE-2018-0438 is a high-severity vulnerability. It was published on October 5, 2018 and has a CVSS 3.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/105286Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-file-readRefwww.exploit-db.com/exploits/45339/Refwww.securityfocus.com/bid/105286Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-file-readRefwww.exploit-db.com/exploits/45339/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-0438?

CVE-2018-0438 is a high-severity vulnerability. It was published on October 5, 2018 and has a CVSS 3.0 base score of 7.8 (HIGH).

How severe is CVE-2018-0438?

This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-0438?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-0438?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-0438 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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