STIGQter: STIG Summary: SLES 12 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The SUSE operating system SSH daemon must not allow compression or must only allow compression after successful authentication.

DISA Rule

SV-217279r603262_rule

Vulnerability Number

V-217279

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

SLES-12-030250

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Configure the SUSE operating system SSH daemon performs compression after a user successfully authenticates.

Uncomment the "Compression" keyword in "/etc/ssh/sshd_config" on the system and set the value to "no":

Compression no

Check Contents

Verify the SUSE operating system SSH daemon performs compression after a user successfully authenticates.

Check that the SSH daemon performs compression after a user successfully authenticates with the following command:

# sudo grep -i compression /etc/ssh/sshd_config
Compression no

If the "Compression" keyword is set to "yes", "delayed", is missing, or the returned line is commented out, this is a finding.

Vulnerability Number

V-217279

Documentable

False

Rule Version

SLES-12-030250

Severity Override Guidance

Verify the SUSE operating system SSH daemon performs compression after a user successfully authenticates.

Check that the SSH daemon performs compression after a user successfully authenticates with the following command:

# sudo grep -i compression /etc/ssh/sshd_config
Compression no

If the "Compression" keyword is set to "yes", "delayed", is missing, or the returned line is commented out, this is a finding.

Check Content Reference

M

Target Key

4033

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