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V-35217

The application server must use cryptographic mechanisms to protect the integrity of log information.

Finding ID
SRG-APP-000126-AS-000085
Rule ID
SV-46504r4_rule46504r3_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-APP-000126-AS-000085
CCI
CCI-001350
Target Key
(None)
Documentable
No
Discussion

ProtectingProtection theof integritylog records is of critical importance. Encrypting log records helpsprovides toa ensurelevel logof filesprotection arethat does not tamperedrely withon host-based protections that can be accidentally misconfigured, such as file system permissions. Cryptographic mechanisms are the industry-established standard used to protect the integrity of log data. An example of a cryptographic mechanismsmechanism is the computation and application of a cryptographic-signed hash and using asymmetric cryptography with digital signatures. Application Servers often write log data to files on the file system. These files typically roll over on a periodic basis. Once the logs are rolled over, hashing and signing the logs assures the logs are not tampered with and helps to assure log integrity.

Fix Text

Configure the application server to hashencrypt and sign logs using cryptographic means. Alternatively, configure the application server or OS to send logs to a centralized log server that meets the hashing and signing requirement.

Check Content

Review the application server documentation and configuration to determine if the application server can be configured to protect the integrity of log data using cryptographic hashes and digital signaturesmeans. Configure the application server to hash and sign log data. This is typically done the moment when log files cease to be written to and are rolled over for storage or offloading. Alternatively, if the application server is not able to hash and sign log data, the task can be delegated by configuring the application server or underlying OS to send logs to a centralized log management system or SIEM that can meet the requirement. If the application server is not configured to hashencrypt and sign logs, or is not configured to utilize the aforementioned OS and centralized log management resources to meet the requirement, this is a finding.