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Test document


Vlus

Nexus URL: TBD

There are 17 CVEs with a CVSS score >= 9.0. These are exceptions requested here:

Release 5: Akraino CVE Vulnerability Exception Request


CVE-ID

CVSS

ATTACK

POC

ALERT

FIXED

PACKAGES

CVE-2005-2541

10.0

AV:N



unfixed

tar

CVE-2014-2830

10.0

AV:N



unfixed

cifs-utils

CVE-2016-1585

9.8

AV:N



unfixed

libapparmor1

CVE-2017-17479

9.8

AV:N



unfixed

libopenjp2-7

CVE-2017-9117

9.8

AV:N

POC


unfixed

libtiff5

CVE-2018-13410

9.8

AV:N



unfixed

zip

CVE-2019-1010022

9.8

AV:N

POC


unfixed

libc-bin, libc-dev-bin, libc-devtools, libc-l10n, libc6, libc6-dbg, libc6-dev, locales

CVE-2019-8341

9.8

AV:N

POC


unfixed

python3-jinja2

CVE-2020-27619

9.8

AV:N



unfixed

python3.9

CVE-2021-29462

9.8

AV:N



unfixed

libixml10, libupnp13

CVE-2021-29921

9.8

AV:N

POC


unfixed

python3.9

CVE-2021-30473

9.8

AV:N



unfixed

libaom0

CVE-2021-30474

9.8

AV:N



unfixed

libaom0

CVE-2021-30475

9.8

AV:N



unfixed

libaom0

CVE-2021-30498

9.8

AV:N

POC


unfixed

libcaca0

CVE-2021-30499

9.8

AV:N

POC


unfixed

libcaca0

CVE-2021-3756

9.8

AV:N

POC


unfixed

libmysofa1

CVE-2021-42377

9.8

AV:N



unfixed

busybox

CVE-2021-45951

9.8

AV:N

POC


unfixed

dnsmasq

CVE-2021-45952

9.8

AV:N

POC


unfixed

dnsmasq

CVE-2021-45953

9.8

AV:N

POC


unfixed

dnsmasq

CVE-2021-45954

9.8

AV:N

POC


unfixed

dnsmasq

CVE-2021-45955

9.8

AV:N

POC


unfixed

dnsmasq

CVE-2021-45956

9.8

AV:N

POC


unfixed

dnsmasq

CVE-2022-0318

9.8

AV:N

POC


unfixed

vim

CVE-2022-23303

9.8

AV:N



unfixed

hostapd, wpasupplicant

CVE-2022-23304

9.8

AV:N



unfixed

hostapd, wpasupplicant

CVE-2021-22945

9.1

AV:N

POC


unfixed

curl

CVE-2021-4048

9.1

AV:N



unfixed

libblas3, liblapack3

CVE-2021-43400

9.1

AV:N



unfixed

bluez

Lynis

Nexus URL TBD


The initial results compare with the Lynis Incubation: PASS/FAIL Criteria, v1.0 as follows.


IoT Gateway

The Lynis Program Update test MUST pass with no errors.

2022-03-29 22:55:42 Test: Checking for program update...
2022-03-29 22:55:43 Current installed version  : 308
2022-03-29 22:55:43 Latest stable version      : 307
2022-03-29 22:55:43 No Lynis update available.


Fix: Download and run the latest Lynis directly on SUT.

Steps To Implement Security Scan Requirements#InstallandExecute

The following list of tests MUST complete as passing
No.TestResultFix
1Test: Checking PASS_MAX_DAYS option in /etc/login.defsResult: password aging limits are not configured
Suggestion: Configure maximum password age in /etc/login.defs [test:AUTH-9286] [details:-] [solution:-]
Hardening: assigned partial number of hardening points (0 of 1). Currently having 13 points (out of 28)		Set PASS_MAX_DAYS 180 in /etc/login.defs
2Performing test ID AUTH-9328 (Default umask values)Test: Checking umask value in /etc/login.defs
Result: found umask 022, which could be improved
Suggestion: Default umask in /etc/login.defs could be more strict like 027 [test:AUTH-9328] [details:-] [solution:-]		Set UMASK 027 in /etc/login.defs
3Performing test ID SSH-7440 (Check OpenSSH option: AllowUsers and AllowGroups)Result: AllowUsers is not set
Result: AllowGroups is not set
Result: SSH has no specific user or group limitation. Most likely all valid users can SSH to this machine.
Hardening: assigned partial number of hardening points (0 of 1). Currently having 140 points (out of 217)
Security check: file is normal
Checking permissions of /home/ubuntu/lynis/include/tests_snmp
File permissions are OK		Configure AllowUsers, AllowGroups in /etc/ssh/sshd_config
4Test: checking for file /etc/network/if-up.d/ntpdateResult: file /etc/network/if-up.d/ntpdate does not exist
Result: Found a time syncing daemon/client.
Hardening: assigned maximum number of hardening points for this item (3). Currently having 149 points (out of 232)		OK
5Performing test ID KRNL-6000 (Check sysctl key pairs in scan profile) :  Following sub-tests requiredN/AN/A
5asysctl key fs.suid_dumpable contains equal expected and current value (0)Result: sysctl key fs.suid_dumpable has a different value than expected in scan profile. Expected=0, Real=2
Hardening: assigned partial number of hardening points (0 of 1). Currently having 151 points (out of 247)		Set recommended value in /etc/sysctl.d/90-lynis-hardening.conf

echo 'fs.suid_dumpable=0' | sudo tee -a /etc/sysctl.d/90-lynis-hardening.conf
sudo /sbin/sysctl --system
sudo sysctl -a |grep suid
5bsysctl key kernel.dmesg_restrict contains equal expected and current value (1)Result: sysctl key kernel.dmesg_restrict has a different value than expected in scan profile. Expected=1, Real=0Set recommended value in /etc/sysctl.d/90-lynis-hardening.conf

echo 'kernel.dmesg_restrict=1' | sudo tee -a /etc/sysctl.d/90-lynis-hardening.conf
sudo /sbin/sysctl --system
sudo sysctl -a |grep dmesg
5csysctl key net.ipv4.conf.default.accept_source_route contains equal expected and current value (0)Result: sysctl key net.ipv4.conf.default.accept_source_route has a different value than expected in scan profile. Expected=0, Real=1Set recommended value in /etc/sysctl.d/90-lynis-hardening.conf

echo 'net.ipv4.conf.default.accept_source_route=0' | sudo tee -a /etc/sysctl.d/90-lynis-hardening.conf
sudo /sbin/sysctl --system
sudo sysctl -a |grep ipv4.conf.default.accept_source_route
6Test: Check if one or more compilers can be found on the systemResult: found installed compiler. See top of logfile which compilers have been found or use /bin/grep to filter on 'compiler'
Hardening: assigned partial number of hardening points (1 of 3). Currently having 168 points (out of 280)		Uninstall gcc and remove /usr/bin/as


PC/Server for robot control

The Lynis Program Update test MUST pass with no errors.

2022-03-23 05:13:56 Test: Checking for program update...
2022-03-23 05:14:03 Current installed version : 308
2022-03-23 05:14:03 Latest stable version : 307
2022-03-23 05:14:03 No Lynis update available

Fix: Download and run the latest Lynis directly on SUT.

Steps To Implement Security Scan Requirements#InstallandExecute

The following list of tests MUST complete as passing
No.TestResultFix
1Test: Checking PASS_MAX_DAYS option in /etc/login.defs

Result: password aging limits are not configured
Suggestion: Configure maximum password age in /etc/login.defs [test:AUTH-9286] [details:-] [solution:-]
Hardening: assigned partial number of hardening points (0 of 1). Currently having 11 points (out of 24)

Set PASS_MAX_DAYS 180 in /etc/login.defs
2Performing test ID AUTH-9328 (Default umask values)Result: found /etc/profile.d, with one or more files in itOK
3Performing test ID SSH-7440 (Check OpenSSH option: AllowUsers and AllowGroups)Result: AllowUsers is not set
Result: AllowGroups is not set
Result: SSH has no specific user or group limitation. Most likely all valid users can SSH to this machine.
Hardening: assigned partial number of hardening points (0 of 1). Currently having 102 points (out of 155)
Security check: file is normal
Checking permissions of /home/pi/lynis/lynis/include/tests_snmp
File permissions are OK		Configure AllowUsers, AllowGroups in /etc/ssh/sshd_config
4Test: checking for file /etc/network/if-up.d/ntpdateResult: file /etc/network/if-up.d/ntpdate does not exist
Result: Found a time syncing daemon/client.
Hardening: assigned maximum number of hardening points for this item (3). Currently having 111 points (out of 170)		OK
5Performing test ID KRNL-6000 (Check sysctl key pairs in scan profile) :  Following sub-tests requiredN/AN/A
5asysctl key fs.suid_dumpable contains equal expected and current value (0)Result: sysctl key fs.suid_dumpable contains equal expected and current value (0)OK
5bsysctl key kernel.dmesg_restrict contains equal expected and current value (1)Result: sysctl key kernel.dmesg_restrict has a different value than expected in scan profile. Expected=1, Real=0Set recommended value in /etc/sysctl.d/90-lynis-hardening.conf

echo 'kernel.dmesg_restrict=1' | sudo tee -a /etc/sysctl.d/90-lynis-hardening.conf
sudo /sbin/sysctl --system
sudo sysctl -a |grep dmesg
5csysctl key net.ipv4.conf.default.accept_source_route contains equal expected and current value (0)Result: sysctl key net.ipv4.conf.default.accept_source_route has a different value than expected in scan profile. Expected=0, Real=1Set recommended value in /etc/sysctl.d/90-lynis-hardening.conf

echo 'net.ipv4.conf.default.accept_source_route=0' | sudo tee -a /etc/sysctl.d/90-lynis-hardening.conf
sudo /sbin/sysctl --system
sudo sysctl -a |grep ipv4.conf.default.accept_source_route
6Test: Check if one or more compilers can be found on the system

Result: found installed compiler. See top of logfile which compilers have been found or use /usr/bin/grep to filter on 'compiler'

Hardening: assigned partial number of hardening points (1 of 3). Currently having 128 points (out of 217)

Uninstall gcc and remove /usr/bin/as


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