Skip to content
ATO Pathways
Log In
Overview
Search
Catalogs
SCAP
OSCAL
Catalogs
Profiles
Documents
References
Knowledge Base
Platform Documentation
Compliance Dictionary
Platform Changelog
About
Catalogs
XCCDF
BIND 9.x Security Technical Implementation Guide
SRG-APP-000516-DNS-000086
SRG-APP-000516-DNS-000086
An XCCDF Group - A logical subset of the XCCDF Benchmark
Details
Profiles
Prose
SRG-APP-000516-DNS-000086
1 Rule
<GroupDescription></GroupDescription>
Permissions assigned to the dnssec-keygen keys used with the BIND 9.x implementation must enforce read-only access to the key owner and deny access to all other users.
Medium Severity
<VulnDiscussion>To enable zone transfer (requests and responses) through authenticated messages, it is necessary to generate a key for every pair of name servers. The key also can be used for securing other transactions, such as dynamic updates, DNS queries, and responses. The binary key string that is generated by most key generation utilities used with DNSSEC is Base64-encoded. A TSIG is a string used to generate the message authentication hash stored in a TSIG RR and used to authenticate an entire DNS message. Weak permissions could allow an adversary to modify the file(s), thus defeating the security objective.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>