title: McAfee Web Gateway denial of service attack due to Improper Input Validation
description: Improper input validation in the proxy component of McAfee Web Gateway 7.8.2.0 and later allows remote attackers to cause a denial of service via a crafted HTTP request parameter.
problem types: CWE-20: Improper Input Validation
affected:
{
platforms: x86
product: McAfee Web Gateway
vendor: McAfee
versions:
lessThan: 7.8.2*, status: affected, version: 7.8.2, versionType: custom
lessThan: 7.8.2.5, status: affected, version: 7.8.2.5, versionType: custom
lessThan: 8.0*, status: affected, version: 8.0, versionType: custom
lessThan: 8.0.2, status: affected, version: 8.0.2, versionType: custom
}
metrics:
cvssV3_0: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.0
]
solutions: Update to MWG 7.8.2.5 or 8.0.2