IBM AIX
TMA-AIX-4.6.3.16
Ensure sshd PermitUserEnvironment is disabled
Beschreibung
The PermitUserEnvironment option allows users to present environment options to the SSH daemon. Permitting users the ability to set environment variables through the SSH daemon could potentially allow users to bypass security controls (e.g. setting an execution path that has SSH executing trojan'd programs) Audit: evaluates the effective configuration from `sshd -T` (Match blocks must be reviewed separately).
So wird geprüft
Prüfmethode: Shell-Befehl
command -v sshd >/dev/null 2>&1 || exit 1; out=$(sshd -T 2>/dev/null) || exit 1; r=compliant; for p in '^permituserenvironment[[:blank:]]+no$'; do printf '%s\n' "$out" | grep -Eiq -- "$p" || r="not matched: $p"; done; echo "$r"- Erwartete Ausgabe
compliant
So wird behoben
Behebungsmethode: Anleitung oder Infrastruktur-Patch
Edit the /etc/ssh/sshd_config file to set the parameter: PermitUserEnvironment no Re-cycle the sshd daemon to pick up the configuration changes: stopsrc -s sshd startsrc -s sshd
Eigenschaften
- Betriebssysteme
- Beliebig
- Tags
- aixssh
- Referenz
- CIS IBM AIX 7 Benchmark v1.2.0 - 4.6.3.16 Ensure sshd PermitUserEnvironment is disabled
Diesen Host prüfen
Führen Sie dies auf einem Rechner aus, den Sie prüfen dürfen. Der Scan ist schreibgeschützt.
tmaegis scan --target aix