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V-57535

The application server must employ approved cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission.

Finding ID
SRG-APP-000440-AS-000167
Rule ID
SV-71811r2_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-APP-000440-AS-000167
CCI
CCI-002421
Target Key
(None)
Documentable
No
Discussion

Preventing the disclosure or modification of transmitted information requires that application servers take measures to employ approved cryptography in order to protect the information during transmission over the network. This is usually achieved through the use of Transport Layer Security (TLS), SSL VPN, or IPSec tunnel. If data in transit is unencrypted, it is vulnerable to disclosure and modification. If approved cryptographic algorithms are not used, encryption strength cannot be assured. FIPS 140-2 approved TLS versions include TLS V1.0 or greater. TLS must be enabled and non-FIPS-approved SSL versions must be disabled. NIST SP 800-52 specifies the preferred configurations for government systems.

Fix Text

Configure the application server to use AES 128 or AES 256 encryption for data in transit.

Check Content

Review application server documentation and configuration to determine if the application server employs approved cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission. If the application server does not employ approved cryptographic mechanisms, this is a finding.