STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 shadow password suite must be configured to use a sufficient number of hashing rounds.

DISA Rule

SV-282459r1200357_rule

Vulnerability Number

V-282459

Group Title

SRG-OS-000073-GPOS-00041

Rule Version

TOSS-05-000356

Severity

CAT II

CCI(s)

• CCI-004062 - For password-based authentication, store passwords using an approved salted key derivation function, preferably using a keyed hash.
• CCI-000803 - Implement mechanisms for authentication to a cryptographic module that meet the requirements of applicable laws, Executive Orders, directives, policies, regulations, standards, and guidance for such authentication.

Weight

10

Fix Recommendation

Configure TOSS 5 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 TOSS 5 has a minimum number of hash rounds configured using the following command:

$ grep -i sha_crypt /etc/login.defs

If "SHA_CRYPT_MIN_ROUNDS" or "SHA_CRYPT_MAX_ROUNDS" is less than "5000", this is a finding.

Vulnerability Number

V-282459

Documentable

False

Rule Version

TOSS-05-000356

Severity Override Guidance

Verify TOSS 5 has a minimum number of hash rounds configured using the following command:

$ grep -i sha_crypt /etc/login.defs

If "SHA_CRYPT_MIN_ROUNDS" or "SHA_CRYPT_MAX_ROUNDS" is less than "5000", this is a finding.

Check Content Reference

M

Target Key

5738