From 5f8f98024f8955a0327b67f873923757a51d082c Mon Sep 17 00:00:00 2001

From: Vojtech Polasek <vpolasek@redhat.com>

Date: Tue, 19 Jan 2021 12:32:07 +0100

Subject: [PATCH 1/7] add rule and remediations

---

 .../ansible/shared.yml                        | 13 +++++

 .../bash/shared.sh                            |  7 +++

 .../oval/shared.xml                           | 38 +++++++++++++

 .../rule.yml                                  | 57 +++++++++++++++++++

 shared/references/cce-redhat-avail.txt        |  1 -

 5 files changed, 115 insertions(+), 1 deletion(-)

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/ansible/shared.yml

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/rule.yml

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/ansible/shared.yml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/ansible/shared.yml

new file mode 100644

index 0000000000..cefba7db05

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/ansible/shared.yml

@@ -0,0 +1,13 @@

+# platform = Red Hat Enterprise Linux 7,Oracle Linux 7

+# reboot = false

+# strategy = restrict

+# complexity = low

+# disruption = low

+

+- name: "Configure sshd to use approved MACs"

+  lineinfile:

+    path: /etc/ssh/sshd_config

+    line: 'MACs hmac-sha2-512,hmac-sha2-256'

+    state: present

+    regexp: '^[\s]*MACs[\s]+(hmac-sha2-512(?=[\w,-@]+|$),?)?(hmac-sha2-256(?=[\w,-@]+|$),?)?[\s]*(?:#.*)?$'

+    create: True

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh

new file mode 100644

index 0000000000..c76190fb96

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh

@@ -0,0 +1,7 @@

+# platform = multi_platform_wrlinux,Red Hat Enterprise Linux 7,Oracle Linux 7

+

+if grep -q -P '^[[:space:]]*MACs[[:space:]]+' /etc/ssh/sshd_config; then

+  sed -i 's/^\s*MACs.*/MACs hmac-sha2-512,hmac-sha2-256/' /etc/ssh/sshd_config

+else

+  echo "MACs hmac-sha2-512,hmac-sha2-256" >> /etc/ssh/sshd_config

+fi

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

new file mode 100644

index 0000000000..d7fbd9f0ed

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

@@ -0,0 +1,38 @@

+<def-group>

+  <definition class="compliance" id="sshd_use_approved_macs_ordered_stig" version="1">

+    {{{ oval_metadata("Limit the Message Authentication Codes (MACs) to those which are FIPS-approved.") }}}

+    <criteria operator="AND">

+      <extend_definition comment="Installed OS is FIPS certified" definition_ref="installed_OS_is_FIPS_certified" />

+      

+      operator="OR">

+        <criteria comment="sshd is not installed" operator="AND">

+          

+          definition_ref="sshd_not_required_or_unset" />

+          

+          definition_ref="package_openssh-server_removed" />

+        </criteria>

+        <criteria comment="sshd is installed and configured" operator="AND">

+          

+          definition_ref="sshd_required_or_unset" />

+          

+          definition_ref="package_openssh-server_installed" />

+          

+          test_ref="test_sshd_use_approved_macs_ordered_stig" />

+        </criteria>

+      </criteria>

+    </criteria>

+  </definition>

+

+  

+  comment="tests the value of MACs setting in the /etc/ssh/sshd_config file"

+  id="test_sshd_use_approved_macs_ordered_stig" version="1">

+    <ind:object object_ref="obj_sshd_use_approved_macs_ordered_stig" />

+  </ind:textfilecontent54_test>

+

+  <ind:textfilecontent54_object id="obj_sshd_use_approved_macs_ordered_stig" version="1">

+    <ind:filepath>/etc/ssh/sshd_config</ind:filepath>

+    <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w,-@]+)(hmac-sha2-512(?=[\w,-@]+|$),?)?(hmac-sha2-256(?=[\w,-@]+|$),?)?[\s]*(?:#.*)?$</ind:pattern>

+    <ind:instance datatype="int">1</ind:instance>

+  </ind:textfilecontent54_object>

+

+</def-group>

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/rule.yml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/rule.yml

new file mode 100644

index 0000000000..dc9f7dca7c

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/rule.yml

@@ -0,0 +1,57 @@

+documentation_complete: true

+

+prodtype: rhel7

+

+title: 'Use Only FIPS 140-2 Validated MACs'

+

+description: |-

+    Limit the MACs to those hash algorithms which are FIPS-approved.

+    The following line in <tt>/etc/ssh/sshd_config</tt>

+    demonstrates use of FIPS-approved MACs:

+    
MACs hmac-sha2-512,hmac-sha2-256

+    This rule ensures that there are configured MACs mentioned

+    above (or their subset), keeping the given order of algorithms.

+

+rationale: |-

+    DoD Information Systems are required to use FIPS-approved cryptographic hash

+    functions. The only SSHv2 hash algorithms meeting this requirement is SHA2.

+

+severity: medium

+

+identifiers:

+    cce@rhel7: CCE-83398-8

+

+references:

+    disa: CCI-000068,CCI-000803,CCI-000877,CCI-001453,CCI-003123

+    srg: SRG-OS-000125-GPOS-00065,SRG-OS-000250-GPOS-00093,SRG-OS-000394-GPOS-00174

+    stigid@rhel7: RHEL-07-040400

+

+ocil_clause: 'MACs option is commented out or not using FIPS-approved hash algorithms'

+

+ocil: |-

+    Only FIPS-approved MACs should be used. To verify that only FIPS-approved

+    MACs are in use, run the following command:

+    
$ sudo grep -i macs /etc/ssh/sshd_config

+    The output should contain only following MACs (or a subset) in the exact order:

+    
hmac-sha2-512,hmac-sha2-256

+

+warnings:

+    - general: |-

+        The system needs to be rebooted for these changes to take effect.

+    - regulatory: |-

+        System Crypto Modules must be provided by a vendor that undergoes

+        FIPS-140 certifications.

+        FIPS-140 is applicable to all Federal agencies that use

+        cryptographic-based security systems to protect sensitive information

+        in computer and telecommunication systems (including voice systems) as

+        defined in Section 5131 of the Information Technology Management Reform

+        Act of 1996, Public Law 104-106. This standard shall be used in

+        designing and implementing cryptographic modules that Federal

+        departments and agencies operate or are operated for them under

+        contract. See {{{ weblink(link="https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.140-2.pdf") }}}

+        To meet this, the system has to have cryptographic software provided by

+        a vendor that has undergone this certification. This means providing

+        documentation, test results, design information, and independent third

+        party review by an accredited lab. While open source software is

+        capable of meeting this, it does not meet FIPS-140 unless the vendor

+        submits to this process.

From 18ea3b8671e15c06a5c1c864d9d1d67f4262189e Mon Sep 17 00:00:00 2001

From: Vojtech Polasek <vpolasek@redhat.com>

Date: Tue, 19 Jan 2021 12:32:25 +0100

Subject: [PATCH 2/7] add tests

---

 .../tests/comment.fail.sh                                  | 7 +++++++

 .../tests/correct_reduced_list.pass.sh                     | 7 +++++++

 .../tests/correct_scrambled.fail.sh                        | 7 +++++++

 .../tests/correct_value.pass.sh                            | 7 +++++++

 .../tests/line_not_there.fail.sh                           | 3 +++

 .../tests/no_parameters.fail.sh                            | 7 +++++++

 .../tests/wrong_value.fail.sh                              | 7 +++++++

 7 files changed, 45 insertions(+)

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/comment.fail.sh

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_reduced_list.pass.sh

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_scrambled.fail.sh

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_value.pass.sh

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/line_not_there.fail.sh

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/no_parameters.fail.sh

 create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/wrong_value.fail.sh

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/comment.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/comment.fail.sh

new file mode 100644

index 0000000000..26bf18234c

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/comment.fail.sh

@@ -0,0 +1,7 @@

+#!/bin/bash

+

+if grep -q "^MACs" /etc/ssh/sshd_config; then

+	sed -i "s/^MACs.*/# MACs hmac-sha2-512,hmac-sha2-256/" /etc/ssh/sshd_config

+else

+	echo "# ciphers MACs hmac-sha2-512,hmac-sha2-256" >> /etc/ssh/sshd_config

+fi

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_reduced_list.pass.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_reduced_list.pass.sh

new file mode 100644

index 0000000000..0d922cdee9

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_reduced_list.pass.sh

@@ -0,0 +1,7 @@

+#!/bin/bash

+

+if grep -q "^MACs" /etc/ssh/sshd_config; then

+	sed -i "s/^MACs.*/MACs hmac-sha2-512/" /etc/ssh/sshd_config

+else

+	echo "MACs hmac-sha2-512" >> /etc/ssh/sshd_config

+fi

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_scrambled.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_scrambled.fail.sh

new file mode 100644

index 0000000000..ce3f459352

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_scrambled.fail.sh

@@ -0,0 +1,7 @@

+#!/bin/bash

+

+if grep -q "^MACs" /etc/ssh/sshd_config; then

+	sed -i "s/^MACs.*/MACs hmac-sha2-256,hmac-sha2-512/" /etc/ssh/sshd_config

+else

+	echo "MACs hmac-sha2-256,hmac-sha2-512" >> /etc/ssh/sshd_config

+fi

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_value.pass.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_value.pass.sh

new file mode 100644

index 0000000000..19da7102a7

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_value.pass.sh

@@ -0,0 +1,7 @@

+#!/bin/bash

+

+if grep -q "^MACs" /etc/ssh/sshd_config; then

+	sed -i "s/^MACs.*/MACs hmac-sha2-512,hmac-sha2-256/" /etc/ssh/sshd_config

+else

+	echo 'MACs hmac-sha2-512,hmac-sha2-256' >> /etc/ssh/sshd_config

+fi

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/line_not_there.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/line_not_there.fail.sh

new file mode 100644

index 0000000000..fd1f19347a

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/line_not_there.fail.sh

@@ -0,0 +1,3 @@

+#!/bin/bash

+

+sed -i "/^MACs.*/d" /etc/ssh/sshd_config

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/no_parameters.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/no_parameters.fail.sh

new file mode 100644

index 0000000000..44c07c6de0

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/no_parameters.fail.sh

@@ -0,0 +1,7 @@

+#!/bin/bash

+

+if grep -q "^MACs" /etc/ssh/sshd_config; then

+	sed -i "s/^MACs.*/MACs /" /etc/ssh/sshd_config

+else

+	echo 'MACs ' >> /etc/ssh/sshd_config

+fi

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/wrong_value.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/wrong_value.fail.sh

new file mode 100644

index 0000000000..cf56cd228f

--- /dev/null

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/wrong_value.fail.sh

@@ -0,0 +1,7 @@

+#!/bin/bash

+

+if grep -q "^MACs" /etc/ssh/sshd_config; then

+	sed -i "s/^MACs.*/MACs hmac-sha2-512,hmac-sha2-256,blahblah/" /etc/ssh/sshd_config

+else

+	echo "MACs hmac-sha2-512,hmac-sha2-256,blahblah" >> /etc/ssh/sshd_config

+fi

From a334b4b434adf92c94b8bd6bb888751782e70ad3 Mon Sep 17 00:00:00 2001

From: Vojtech Polasek <vpolasek@redhat.com>

Date: Tue, 19 Jan 2021 12:32:58 +0100

Subject: [PATCH 3/7] modify rhel7 stig profile

---

 rhel7/profiles/stig.profile | 3 +--

 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/rhel7/profiles/stig.profile b/rhel7/profiles/stig.profile

index 6c06a8ede6..17c781d3eb 100644

--- a/rhel7/profiles/stig.profile

+++ b/rhel7/profiles/stig.profile

@@ -28,7 +28,6 @@ selections:

     - inactivity_timeout_value=15_minutes

     - var_screensaver_lock_delay=5_seconds

     - sshd_idle_timeout_value=10_minutes

-    - sshd_approved_macs=stig

     - var_accounts_fail_delay=4

     - var_selinux_state=enforcing

     - var_selinux_policy_name=targeted

@@ -259,7 +258,7 @@ selections:

     - sshd_print_last_log

     - sshd_disable_root_login

     - sshd_allow_only_protocol2

-    - sshd_use_approved_macs

+    - sshd_use_approved_macs_ordered_stig

     - file_permissions_sshd_pub_key

     - file_permissions_sshd_private_key

     - sshd_disable_gssapi_auth

From df71fc735efa8754a73fab5d355d422c6e0ffa53 Mon Sep 17 00:00:00 2001

From: Vojtech Polasek <vpolasek@redhat.com>

Date: Tue, 19 Jan 2021 12:33:10 +0100

Subject: [PATCH 4/7] remove rhel7 stigid from sshd_use_approved_macs

---

 .../services/ssh/ssh_server/sshd_use_approved_macs/rule.yml      | 1 -

 1 file changed, 1 deletion(-)

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs/rule.yml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs/rule.yml

index 394c733f51..d47eb443f5 100644

--- a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs/rule.yml

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs/rule.yml

@@ -54,7 +54,6 @@ references:

     nist-csf: PR.AC-1,PR.AC-3,PR.DS-5,PR.PT-4

     srg: SRG-OS-000125-GPOS-00065,SRG-OS-000250-GPOS-00093,SRG-OS-000394-GPOS-00174

     vmmsrg: SRG-OS-000033-VMM-000140,SRG-OS-000120-VMM-000600,SRG-OS-000478-VMM-001980,SRG-OS-000480-VMM-002000,SRG-OS-000396-VMM-001590

-    stigid@rhel7: RHEL-07-040400

     stigid@sle12: SLES-12-030180

     isa-62443-2013: 'SR 1.1,SR 1.13,SR 1.2,SR 1.3,SR 1.4,SR 1.5,SR 1.7,SR 1.8,SR 1.9,SR 2.6,SR 3.1,SR 3.5,SR 3.8,SR 4.1,SR 4.3,SR 5.1,SR 5.2,SR 5.3,SR 7.1,SR 7.6'

     isa-62443-2009: 4.3.3.5.1,4.3.3.6.6

From 9c24aaaba67f0123a82335672fd25aacd913caa4 Mon Sep 17 00:00:00 2001

From: Vojtech Polasek <vpolasek@redhat.com>

Date: Thu, 21 Jan 2021 11:43:16 +0100

Subject: [PATCH 5/7] simplify regex

---

 .../sshd_use_approved_macs_ordered_stig/oval/shared.xml         | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

index d7fbd9f0ed..5973488661 100644

--- a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

@@ -31,7 +31,7 @@

   <ind:textfilecontent54_object id="obj_sshd_use_approved_macs_ordered_stig" version="1">

     <ind:filepath>/etc/ssh/sshd_config</ind:filepath>

-    <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w,-@]+)(hmac-sha2-512(?=[\w,-@]+|$),?)?(hmac-sha2-256(?=[\w,-@]+|$),?)?[\s]*(?:#.*)?$</ind:pattern>

+    <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w,-@]+)(hmac-sha2-512(?=[\w,]+|$),?)?(hmac-sha2-256)?[\s]*(?:#.*)?$</ind:pattern>

     <ind:instance datatype="int">1</ind:instance>

   </ind:textfilecontent54_object>

From e3973f4c2988308a2d1a18e67a730a059f791336 Mon Sep 17 00:00:00 2001

From: Vojtech Polasek <vpolasek@redhat.com>

Date: Thu, 21 Jan 2021 11:55:19 +0100

Subject: [PATCH 6/7] make bash remediation more readable

---

 .../sshd_use_approved_macs_ordered_stig/bash/shared.sh          | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh

index c76190fb96..f8f6f39bee 100644

--- a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh

@@ -1,6 +1,6 @@

 # platform = multi_platform_wrlinux,Red Hat Enterprise Linux 7,Oracle Linux 7

-if grep -q -P '^[[:space:]]*MACs[[:space:]]+' /etc/ssh/sshd_config; then

+if grep -q -P '^\s*MACs\s+' /etc/ssh/sshd_config; then

   sed -i 's/^\s*MACs.*/MACs hmac-sha2-512,hmac-sha2-256/' /etc/ssh/sshd_config

 else

   echo "MACs hmac-sha2-512,hmac-sha2-256" >> /etc/ssh/sshd_config

From e5c379ac8cbd7bd42b116d3a5473a78406a662fd Mon Sep 17 00:00:00 2001

From: Vojtech Polasek <vpolasek@redhat.com>

Date: Thu, 21 Jan 2021 13:05:18 +0100

Subject: [PATCH 7/7] one more small fix to oval regex

---

 .../sshd_use_approved_macs_ordered_stig/oval/shared.xml         | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

index 5973488661..b5443b07c4 100644

--- a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml

@@ -31,7 +31,7 @@

   <ind:textfilecontent54_object id="obj_sshd_use_approved_macs_ordered_stig" version="1">

     <ind:filepath>/etc/ssh/sshd_config</ind:filepath>

-    <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w,-@]+)(hmac-sha2-512(?=[\w,]+|$),?)?(hmac-sha2-256)?[\s]*(?:#.*)?$</ind:pattern>

+    <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w]+)(hmac-sha2-512(?=[\w,]+|$),?)?(hmac-sha2-256)?[\s]*(?:#.*)?$</ind:pattern>

     <ind:instance datatype="int">1</ind:instance>

   </ind:textfilecontent54_object>