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CVE Record

CVE-2018-0428: A vulnerability in the account management subsystem of Cisco Web Security Appliance (WSA) could allow an au...

A vulnerability in the account management subsystem of Cisco Web Security Appliance (WSA) could allow an authenticated, local attacker to elevate privileges to root. The attacker must authenticate with valid administrator credentials. The vulnerability is due to improper implementation of access controls. An attacker could exploit this vulnerability by authenticating to the device as a specific user to gain the information needed to elevate privileges to root in a separate login shell. A successful exploit could allow the attacker to escape the CLI subshell and execute system-level commands on the underlying operating system as root. Cisco Bug IDs: CSCvj93548.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This Cisco WSA issue lets someone who already has valid administrator credentials and local access escalate to root. That could turn an admin account compromise or insider misuse into full control of the appliance, including system-level command execution outside the normal CLI controls. Exposure is limited to Cisco Web Security Appliance deployments. The provided bundle does not identify affected AsyncOS versions, fixed releases, or CPEs, so teams need to compare deployed appliances against Cisco’s advisory and Bug ID CSCvj93548. Treat this as a priority for environments using Cisco WSA, especially where appliance administrators are numerous or credentials are shared. It is not described as unauthenticated remote compromise, but successful exploitation could give root control of a security gateway. Mitigation focus: Review Cisco advisory cisco-sa-20180815-wsa-escalation for fixed releases or workarounds.; Inventory Cisco WSA appliances and map software versions to Cisco’s affected-version guidance.; Restrict WSA administrative access to named, trusted administrators only..

Prepared

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

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · medium confidence lookup

CWE-284: Authorization and privilege behavior lookup

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cve · low confidence lookup

CVE-2018-0428 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.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Cisco Systems, Inc.Web Security ApplianceunspecifiedListed
Weakness

CWE details

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CWE-284 · source CWE mapping

Improper Access Control

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