The F5 BIG-IP appliance IPsec VPN must be configured to use FIPS-validated SHA-2 or higher for Internet Key Exchange (IKE).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-266287	F5BI-VN-300041	SV-266287r1024762_rule	CCI-001184	high
Description
Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Although allowed by SP800-131Ar2 for some applications, SHA-1 is considered a compromised hashing standard and is being phased out of use by industry and government standards. Unless required for legacy use, DOD systems must not be configured to use SHA-2 for integrity of remote access sessions. This requirement is applicable to the configuration of IKE Phase 1 and Phase 2.
STIG			Date
F5 BIG-IP TMOS VPN Security Technical Implementation Guide			2024-09-09

Related Frameworks

1 mapping across 4 frameworks

SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

NET-09Session Integrity

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)
SCF Secure Traceability Relationship Mapping (STRM)2026.2equal to

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (30) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(2)Protection of Confidentiality and Integrity Using Encryption

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

AU-10(1)Association of Identities

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)2our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

AU-10(2)Validate Binding of Information Producer Identity

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)2our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

AU-9(3)Cryptographic Protection

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)2our copyintersects(normalised)DISA STIG Benchmark (XCCDF)V2R6our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)2intersects(normalised)DISA STIG Benchmark (XCCDF)V2R6intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

CM-14Signed Components

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)V2R2our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V2R2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

CM-5(3)Signed Components

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)V2R2our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V2R2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

CM-6Configuration Settings

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)V1R2our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V1R2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

CM-7Least Functionality

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

IA-2(1)Multi-factor Authentication to Privileged Accounts

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

IA-2(12)Acceptance of PIV Credentials

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA STIG Benchmark (XCCDF)1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

+20 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.13.15

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)
NIST SP 800-171 Rev 2, Appendix DRev 2 (Feb 2020, errata Jan 2021)equal to(normalised)

CCI1 mapping

CCI-001184

1.00

DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)

Details

Check Text (C-266287r1024762_chk)

From the BIG-IP GUI: 1. Network. 2. IPsec. 3. IKE Peers. 4. Click on the name of the IKE peer. 5. Verify "SHA-1" or "MD5" is not selected for the following: IKE Phase 1 Algorithms >> Authentication Algorithm IKE Phase 1 Algorithms >> Pseudo-Random Function From the BIG-IP GUI: 1. Network. 2. IPsec. 3. IPsec Policies. 4. Click the name of the IPsec Policy. 5. Verify "SHA-1" is not selected for the following: IKE Phase 2 >> Authentication Algorithm If the BIG-IP appliance is not configured to use FIPS-validated SHA-2 or higher for IKE, this is a finding.

Fix Text (F-70114r1024108_fix)

From the BIG-IP GUI: 1. Network. 2. IPsec. 3. IKE Peers. 4. Click on the name of the IKE peer. 5. Configure SHA-2 or higher for the following: IKE Phase 1 Algorithms >> Authentication Algorithm IKE Phase 1 Algorithms >> Pseudo-Random Function 6. Click "Update". From the BIG-IP GUI: 1. Network. 2. IPsec. 3. IPsec Policies. 4. Click the name of the IPsec Policy. 5. Configure SHA-2 or higher for the following: IKE Phase 2 >> Authentication Algorithm 6. Click "Update".