Detections
Analytics

AIX7-00-002115 - AIX must turn on SSH daemon reverse name checking.

Information

If reverse name checking is off, SSH may allow a remote attacker to circumvent security policies and attempt to or actually login from IP addresses that are not permitted to access resources.

Solution

Edit the "/etc/sshd/sshd_config" file and add the following line:
VerifyReverseMapping yes

Restart the SSH daemon:
# stopsrc -s sshd
# startsrc -s sshd

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_IBM_AIX_7-x_V3R3_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-215298r991589_rule, STIG-ID|AIX7-00-002115, STIG-Legacy|SV-101825, STIG-Legacy|V-91727, Vuln-ID|V-215298

Plugin: Unix

Control ID: 665237ac90fa36c4214288b3a524aed9f2bdd18fe9e50b52269cea34843c4d46