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CVE Record

CVE-2018-0087: A vulnerability in the FTP server of the Cisco Web Security Appliance (WSA) could allow an unauthenticated,...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2018-0087 lets someone with a valid username access the FTP service on a Cisco Web Security Appliance without the correct password. The risk exists only on Cisco AsyncOS 10.5.1 for WSA when FTP is enabled on the management interface, which Cisco says is disabled by default. Exposure is likely limited to Cisco WSA deployments running AsyncOS 10.5.1 with FTP enabled on the management interface. Default installations are less exposed because FTP is disabled by default, but internet- or broadly reachable management networks raise urgency. Treat this as a targeted management-plane risk. Prioritize any Cisco WSA running AsyncOS 10.5.1 where management FTP is enabled or reachable beyond a tightly controlled admin network. Mitigation focus: Inventory Cisco WSA virtual and hardware appliances for AsyncOS 10.5.1.; Disable FTP on the management interface unless explicitly required.; Restrict management IP access to trusted administrative networks or VPN..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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cwe · medium confidence lookup

CWE-287: Credential and account abuse lookup

Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2018-0087 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aCisco Web Security ApplianceCisco Web Security ApplianceListed
Weakness

CWE details

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CWE-287 · source CWE mapping

Improper Authentication

Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.