title: Windows service and uninstall paths are not quoted when BIND is installed
description: The BIND installer on Windows uses an unquoted service path which can enable a local user to achieve privilege escalation if the host file system permissions allow this. Affects BIND 9.2.6-P2->9.2.9, 9.3.2-P1->9.3.6, 9.4.0->9.8.8, 9.9.0->9.9.10, 9.10.0->9.10.5, 9.11.0->9.11.1, 9.9.3-S1->9.9.10-S1, 9.10.5-S1.
problem types: This vulnerability exists in the installer delivered with BIND for Windows and not within BIND itself.  Non-Windows builds and installations are unaffected.  A manual installation of BIND where the service path is quoted when added would not be at risk.
affected:
{
product: BIND 9
vendor: ISC
versions:
status: affected, version: 9.2.6-P2->9.2.9, 9.3.2-P1->9.3.6, 9.4.0->9.8.8, 9.9.0->9.9.10, 9.10.0->9.10.5, 9.11.0->9.11.1, 9.9.3-S1->9.9.10-S1, 9.10.5-S1
}
metrics:
cvssV3_0: [
attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 7.2
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
version: 3.0
]
exploits: No known active exploits but this generic weakness is already a well-known attack vector if user file access permissions do not adequately prevent the installation of malicious executables.
solutions: Upgrade to the patched release most closely related to your current version of BIND.  These can all be downloaded from http://www.isc.org/downloads.
BIND 9 version 9.9.10-P1
BIND 9 version 9.10.5-P1
BIND 9 version 9.11.1-P1
BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.
BIND 9 version 9.9.10-S2
BIND 9 version 9.10.5-S2
workarounds: BIND installations on Windows are not at risk if the host file permissions prevent creation of a binary in a location where the service executor would run it instead of named.exe.