Title

The operating system must use cryptographic mechanisms to protect the integrity of audit tools. (Cat I impact)

Discussion

Protecting the integrity of the tools used for auditing purposes is a critical step toward ensuring the integrity of audit information. Audit information includes all information (e.g., audit records, audit settings, and audit reports) needed to successfully audit information system activity. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. It is not uncommon for attackers to replace the audit tools or inject code into the existing tools with the purpose of providing the capability to hide or erase system activity from the audit logs. To address this risk, audit tools must be cryptographically signed in order to provide the capability to identify when the audit tools have been modified, manipulated, or replaced. An example is a checksum hash of the file or files.

Check Content

Verify the operating system uses cryptographic mechanisms to protect the integrity of audit tools. If it does not, this is a finding.

Fix Text

Configure the operating system to use cryptographic mechanisms to protect the integrity of audit tools.

Additional Identifiers

Rule ID: SV-203682r877393_rule

Vulnerability ID: V-203682

Group Title: SRG-OS-000278

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.