CVE-2018-0087
First published: Thu Mar 08 2018(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco AsyncOS | =10.5.1-296 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-0087?
The severity of CVE-2018-0087 is medium with a CVSS score of 5.6.
What is CVE-2018-0087?
CVE-2018-0087 is a vulnerability in the FTP server of the Cisco Web Security Appliance (WSA) that allows an unauthenticated, remote attacker to log in to the FTP server without a valid password.
How does CVE-2018-0087 affect Cisco AsyncOS?
CVE-2018-0087 affects Cisco AsyncOS version 10.5.1-296.
How can I fix CVE-2018-0087?
To fix CVE-2018-0087, Cisco advises applying the necessary updates as mentioned in the Cisco Security Advisory.
Where can I find more information about CVE-2018-0087?
You can find more information about CVE-2018-0087 in the provided references: [http://www.securityfocus.com/bid/103407](http://www.securityfocus.com/bid/103407), [http://www.securitytracker.com/id/1040464](http://www.securitytracker.com/id/1040464), [https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-wsa](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-wsa).
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