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CVE-2018-0087

5.6 · MEDIUM

A vulnerability in the FTP server of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to log in to the FTP server of the device without a valid password.

Published Mar 8, 2018CWE-287EPSS 1.84%

Overview

CVE-2018-0087 is a medium-severity vulnerability. It was published on March 8, 2018 and has a CVSS 3.0 base score of 5.6 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.6, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability in the FTP server of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to log in to the FTP server of the device without a valid password. The attacker does need to have a valid username. The vulnerability is due to incorrect FTP user credential validation. An attacker could exploit this vulnerability by using FTP to connect to the management IP address of the targeted device. A successful exploit could allow the attacker to log in to the FTP server of the Cisco WSA without having a valid password. This vulnerability affects Cisco AsyncOS for WSA Software on both virtual and hardware appliances that are running any release of Cisco AsyncOS 10.5.1 for WSA Software. The device is vulnerable only if FTP is enabled on the management interface. FTP is disabled by default. Cisco Bug IDs: CSCvf74281.

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/103407Refwww.securitytracker.com/id/1040464Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-wsaRefwww.securityfocus.com/bid/103407Refwww.securitytracker.com/id/1040464Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-wsa

How CyberStrike helps

Frequently asked questions

What is CVE-2018-0087?

CVE-2018-0087 is a medium-severity vulnerability. It was published on March 8, 2018 and has a CVSS 3.0 base score of 5.6 (MEDIUM).

How severe is CVE-2018-0087?

This vulnerability has a CVSS 3.0 base score of 5.6, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-0087?

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-2018-0087?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-0087 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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