If the system is using LDAP for authentication or account information, the system must use a TLS connection using FIPS 140-2 approved cryptographic algorithms.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22555	GEN007980	SV-41996r1_rule	DCNR-1	Medium

Description
LDAP can be used to provide user authentication and account information, which are vital to system security. Communication between an LDAP server and a host using LDAP requires protection.

STIG	Date
HP-UX 11.31 Security Technical Implementation Guide	2018-09-14

Details

Check Text ( C-40430r3_chk )
Determine if the system uses LDAP. If it does not, this is Not A Finding. # swlist \| grep LDAP OR # cat /etc/nsswitch.conf \| tr '\011' ' ' \| tr -s ' ' \| sed -e 's/^[ \t]//' \| \ grep -v "^#" \| grep -i ldap If LDAP is installed, verify that TLS is enabled. # cat /etc/opt/ldapux/ldapux_client.conf \| tr '\011' ' ' \| tr -s ' ' \| \ sed -e 's/^[ \t]//' \| grep -v "^#" \| grep -i "^enable_startTLS = 1" If TLS is not enabled, this is a finding. Verify the certificate database exists. # ls -alL /etc/opt/ldapux/cert* List the LDAP Directory Server certificate. # /opt/ldapux/contrib/bin/certutil -L -d /etc/opt/ldapux List the details when checking the Directory Server's certificate validity/attributes. Note: The format of the validity-time argument when specifying an explicit time is "YYMMDDHHMMSSZ". Specifying seconds (SS) is optional. # /opt/ldapux/contrib/bin/certutil -V -n -b [-e] -l -d /etc/opt/ldapux If the Directory Server's certificate cannot be verified, this is a finding. NOTE: The TLS protocol supports a variety of cryptographic ciphers for authenticating the server and client to each other, transmitting certificates and establishing session keys. When the LDAP-UX client connects to the LDAP Directory Server, the server selects the strongest cipher supported by both client and server. As LDAP-UX is the client side of the LDAP application, LDAP-UX has no control over this process. Unless it can be determined that the Directory Server is using FIPS 140-2 approved cryptographic algorithms for the TLS connection, this check will result in an OPEN Finding.

Check Text ( C-40430r3_chk )

Determine if the system uses LDAP. If it does not, this is Not A Finding.
# swlist | grep LDAP
OR
# cat /etc/nsswitch.conf | tr '\011' ' ' | tr -s ' ' | sed -e 's/^[ \t]*//' | \
grep -v "^#" | grep -i ldap

If LDAP is installed, verify that TLS is enabled.
# cat /etc/opt/ldapux/ldapux_client.conf | tr '\011' ' ' | tr -s ' ' | \
sed -e 's/^[ \t]*//' | grep -v "^#" | grep -i "^enable_startTLS = 1"

If TLS is not enabled, this is a finding.

Verify the certificate database exists.
# ls -alL /etc/opt/ldapux/cert*

List the LDAP Directory Server certificate.
# /opt/ldapux/contrib/bin/certutil -L -d /etc/opt/ldapux

List the details when checking the Directory Server's certificate validity/attributes. Note: The format of the validity-time argument when specifying an explicit time is "YYMMDDHHMMSSZ". Specifying seconds (SS) is optional.
# /opt/ldapux/contrib/bin/certutil -V -n -b [-e] -l -d /etc/opt/ldapux
If the Directory Server's certificate cannot be verified, this is a finding.

NOTE: The TLS protocol supports a variety of cryptographic ciphers for authenticating the server and client to each other, transmitting certificates and establishing session keys. When the LDAP-UX client connects to the LDAP Directory Server, the server selects the strongest cipher supported by both client and server. As LDAP-UX is the client side of the LDAP application, LDAP-UX has no control over this process.

Unless it can be determined that the Directory Server is using FIPS 140-2 approved cryptographic algorithms for the TLS connection, this check will result in an OPEN Finding.

Fix Text (F-35635r2_fix)
The Directory Server must support and be configured to use FIPS 140-2 approved cryptographic algorithms for the TLS connection. For the LDAPUX client: # vi /etc/opt/ldapux/ldapux_client.conf If commented, uncomment the "enable_startTLS" keyword line and ensure that the keyword value is set to 1 (to start TLS), IE: enable_startTLS = 1 Finally, use the following commands to reread the configuration file and restart ldapclientd.: # /opt/ldapux/bin/ldapclientd -k # nohup /opt/ldapux/bin/ldapclientd

Fix Text (F-35635r2_fix)

The Directory Server must support and be configured to use FIPS 140-2 approved cryptographic algorithms for the TLS connection.

For the LDAPUX client:
# vi /etc/opt/ldapux/ldapux_client.conf

If commented, uncomment the "enable_startTLS" keyword line and ensure that the keyword value is set to 1 (to start TLS), IE:

enable_startTLS = 1

Finally, use the following commands to reread the configuration file and restart ldapclientd.:
# /opt/ldapux/bin/ldapclientd -k
# nohup /opt/ldapux/bin/ldapclientd