STIGQter: STIG Summary: SUSE Linux Enterprise Server 15 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

The SUSE operating system must employ FIPS 140-2-approved cryptographic hashing algorithms for all stored passwords.

DISA Rule

SV-234888r622137_rule

Vulnerability Number

V-234888

Group Title

SRG-OS-000073-GPOS-00041

Rule Version

SLES-15-020190

Severity

CAT II

CCI(s)

• CCI-000196 - The information system, for password-based authentication, stores only cryptographically-protected passwords.
• CCI-000803 - The information system implements mechanisms for authentication to a cryptographic module that meet the requirements of applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance for such authentication.

Weight

10

Fix Recommendation

Configure the SUSE operating system to encrypt all stored passwords with a strong cryptographic hash.

Edit/modify the following line in the "/etc/login.defs" file and set "SHA_CRYPT_MIN_ROUNDS" to a value no lower than "5000":

SHA_CRYPT_MIN_ROUNDS 5000

Check Contents

Verify the SUSE operating system configures the shadow password suite configuration to encrypt passwords using a strong cryptographic hash.

Check that a minimum number of hash rounds is configured by running the following command:

> egrep "^SHA_CRYPT_" /etc/login.defs

If only one of "SHA_CRYPT_MIN_ROUNDS" or "SHA_CRYPT_MAX_ROUNDS" is set, and this value is below "5000", this is a finding.

If both "SHA_CRYPT_MIN_ROUNDS" and "SHA_CRYPT_MAX_ROUNDS" are set, and the highest value for either is below "5000", this is a finding.

Vulnerability Number

V-234888

Documentable

False

Rule Version

SLES-15-020190

Severity Override Guidance

Verify the SUSE operating system configures the shadow password suite configuration to encrypt passwords using a strong cryptographic hash.

Check that a minimum number of hash rounds is configured by running the following command:

> egrep "^SHA_CRYPT_" /etc/login.defs

If only one of "SHA_CRYPT_MIN_ROUNDS" or "SHA_CRYPT_MAX_ROUNDS" is set, and this value is below "5000", this is a finding.

If both "SHA_CRYPT_MIN_ROUNDS" and "SHA_CRYPT_MAX_ROUNDS" are set, and the highest value for either is below "5000", this is a finding.

Check Content Reference

M

Target Key

5274

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