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Monthly Vulnerability Review

In April 2020 they were 623 advisories for 91 unique vendors in 406 products and 512 unique versions. This is an nearly a  40%  increase of advisories compared to previous month.

There were two Zero Day ‘s in Mozilla Firefox ( CVE-2020-6819 and CVE-2020-6820 ) and three extremely critical advisories were issued by Microsoft , which was patched due its regular cycle. I highly recommend you keep your software up to date, but for this two specifically

  • Firefox users  to update your software to the latest version
  • Windows Users to install the latest patch via Windows Update

Red Hat kept its position as a top vendor with the most amount of vulnerabilities,  proving the wrong perception that Linux is more secure , in the other hand  Microsoft also held its 6th position based on Flexera’s Monthly report.

Below is also some highlight from other Operating Systems which you should be aware :

  • F5 Networks, Juniper Networks, and Cisco , so in other words Networking Product vendors had also some vulnerabilities, which means you should update the firmware of your outdated product . Please keep in mind that your Network equipment  are the first line of defense against external attacks so please don’t delay to update them
  • 1 advisory for each of the Microsoft Client and Server Operating systems.
  • 125 advisories for Red Hat Enterprise Linux 7,8, and Fedora 30 and 31.
  • 30 advisories for Ubuntu 14.04, 16.04 and 18.04
  • 49 advisories for SUSE Linux Enterprise Linux Server (SLE) version 11 through 15
  • 39 advisories for Oracle Linux 6 and 7 and two advisory for Oracle Solaris.
  • 21 advisories for Debian 10.x and GNU/Linux 9.x.
  • 10 advisories for CentOS 6.x.
  • 11 advisories for Amazon Linux AMI and 2.
  • Also if you are a Cisco WebEx Meeting customer ensure to update your Desktop app as well as Recording player applications

 

Advisories by Vendors

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Average Criticality per Vendor

5 being the highest criticality, the below graph shows the average criticality per vendor, which is sorted based on the number of advisories.

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Advisories by Criticality

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Count of Advisories versus Attack Vector.

65% of vulnerabilities can be exploited from remote, which makes the remediation efforts even more critical.

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Threat Score

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  • Advisories with positive Threat Score (1+):            397 (63.72%)
  • None Threat Score SAIDs (=0):                                 226 (36.28%)
  • Low-Range Threat Score SAIDs      (1-12):               204 (32.74%)
  • Medium-Range Threat Score SAIDs   (13-23):       164 (26.32%)
  • High-Range Threat Score SAIDs     (24-44):             22 (3.53%)
  • Critical-Range Threat Score SAIDs (45-70):             7 (1.12%)
  • Very Critical Threat Score SAIDs  (71-99):               0 (0.00%)

Ransomware, Malware, and Exploit Kits

17 instances of kinsing and Loncom with CVE-2020-6819 in Oracle, Red hat Linux, SUSE and CentOS, Fedora, and Mozilla Firefox and Thunderbird.

4  instances of SafeStrip (Fake Antivirus), Snatch Ransomware, Mdrop, and Xhelper (Adware) in CentOS, Oracle Linux, and RedHat with CVE-2019-17666.

  • Historically Linked to Ransomware:          6 (0.96%)
  • Historically Linked to Malware:                 59  (9.47%)
  • Linked to a Recent Cyber Exploit:              111 (17.82%)
  • Related to a Historical Cyber Exploits:      267 (42.86%)
  • Included in Penetration Testing Tools:     212  (34.03%)

Conclusion

The number of advisories is steadily increasing month over month – 67 % increase since February 2020. Zero and extremely critical vulnerabilities should be pathed on an emergency basis and shouldn’t wait for a regular patch cycle.

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