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XCCDF
Juniper SRX Services Gateway VPN Security Technical Implementation Guide
SRG-NET-000062
The Juniper SRX Services Gateway VPN must use AES encryption for the IPsec proposal to protect the confidentiality of remote access sessions.
The Juniper SRX Services Gateway VPN must use AES encryption for the IPsec proposal to protect the confidentiality of remote access sessions.
An XCCDF Rule
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The Juniper SRX Services Gateway VPN must use AES encryption for the IPsec proposal to protect the confidentiality of remote access sessions.
High Severity
<VulnDiscussion>Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. The Advance Encryption Standard (AES) encryption is critical to ensuring the privacy of the IPsec session; it is imperative that AES is used for encryption operations. Remote access is access to DoD-non-public information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include broadband and wireless connections. While there is much debate about the security and performance of AES, there is a consensus that AES is significantly more secure than other algorithms currently supported by IPsec implementations. AES is available in three key sizes: 128, 192, and 256 bits, versus the 56 bit DES. Therefore, there are approximately 1021 times more AES 128-bit keys than DES 56-bit keys. In addition, AES uses a block size of 128 bits—twice the size of DES or 3DES.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>