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AIX SSH private host key files must have mode 0600 or less permissive.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-215321AIX7-00-003004SV-215321r958450_ruleCCI-000186medium
Description
If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the network infrastructure. The cornerstone of the PKI is the private key used to encrypt or digitally sign information. If the private key is stolen, this will lead to the compromise of the authentication and non-repudiation gained through PKI because the attacker can use the private key to digitally sign documents and pretend to be the authorized user. Both the holders of a digital certificate and the issuing authority must protect the computers, storage devices, or whatever they use to keep the private keys.
STIGDate
IBM AIX 7.x Security Technical Implementation Guide2024-08-16

Related Frameworks

1 mapping across 3 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.

IAC-10.2PKI-Based Authentication
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (55) 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-10Concurrent Session Control
1.00
AC-12Session Termination
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-3(4)Discretionary Access Control
1.00

+45 more (top 10 by confidence shown)

CCI1 mapping
CCI-000186
1.00

Details

Check Text (C-215321r958450_chk)

Check the permissions for SSH private host key files: # ls -lL /etc/ssh/*key The above command should yield the following output: -rw------- 1 root system 668 Jan 18 2017 /etc/ssh/ssh_host_dsa_key -rw------- 1 root system 227 Jan 18 2017 /etc/ssh/ssh_host_ecdsa_key -rw------- 1 root system 965 Jan 18 2017 /etc/ssh/ssh_host_key -rw------- 1 root system 1675 Jan 18 2017 /etc/ssh/ssh_host_rsa_key If any file has a mode more permissive than "0600", this is a finding.

Fix Text (F-16517r294415_fix)

Change the permissions for the SSH private host key files: # chmod 0600 /etc/ssh/*key