Reports
These case reports give you insight into the kinds of vulnerabilities we found, the numbers and how we helped to fix them. If you want to be informed on our current research projects, check the CSIRT page.
Report DIVD-2021-00012-Warehouse botnet
2 November, 2021, by Chris van ‘t Hof
researcher Tom Wolters found a database with leaked credentials and together with DIVD he informed victims
Report DIVD-2020–00011 Vembu BDR
August, 2021, by Gerard Janssen
DIVD researcher Wietse Boonstra found four zero-day vulnerabilities in Vembu BDR Suite.
Report DIVD-2021-00005-Pulse Secure Preauth RCE
23 November, 2021, by Gerard Janssen
Pulse Secure published an advisory in response to recently discovered critical vulnerabilities in the (VPN) product Pulse Connect Secure (PCS), version 9.0R3 and higher
Report DIVD-2021-00004 - Leaked Phishing Credentials
7 June, 2021, by Célistine Oosting
an external researcher not tied to the DIVD informed us about leaked phishing credentials, the DIVD/DIVD CSIRT informed the victims of the phishing campaign after obtaining the information
Report DIVD-2021-00003- Facebook Leak
20 May, 2021, by Chris van ‘t Hof
This is actually a non-report, but it demonstrates where we draw the boundaries on what we can and cannot do according to our code of conduct.
Report DIVD-2021-00001– Microsoft Exchange Server ProxyLogon
August 26, 2021, by Gerard Janssen
In the beginning of 2021 various groups have been breaking into Microsoft Exchange servers using various zero-days, DIVD scanned for unpatched versions and warned more than 40,000 organizations.
Report DIVD-2020-00013 - Leaked Phishing Credentials
1 July, 2021, by Joris van de Vis
an external researcher not tied to the DIVD informed us about leaked phishing credentials, the DIVD/DIVD CSIRT informed the victims of the phishing campaign after obtaining the information
Report DIVD-2020-00012 - Scanning 49,577 Vulnerable Fortinet VPN Devices
12 May 2021, by Jeroen van de Weerd
A total of 34,830 notifications were sent to companies and agencies with vulnerable Fortinet VPN devices. We received some positive responses.
Report DIVD-2020-00010 - wpDiscuz Plugin Remote Code
12 May 2021, by Jeroen van de Weerd
DIVD researchers identified vulnerable wpDiscuz installations in the Netherlands and notified the system administrators.
Report DIVD-2020-00009 - Pulse Secure VPN enterprise Leak
11 May 2021, by Jeroen van de Weerd
A list of usernames and IP addresses of more than 900 Pulse Secure VPN enterprise servers was leaked online. Security researchers forwarded this list to DIVD who notified the victims.
2020-00008-313 000 Wordpress sites scanned
08 April 2021, by Jeroen van de Weerd
DIVD received a list with all the Wordpress websites in the .nl space, 313 000 sites were scanned for vulnerabilities. Two different vulnerabilities were reported on.
Report DIVD-2020-00007 Citrix ShareFile
31st June 2021, by Jeroen van de Weerd
On May 5, 2020, Citrix released a security advisory for the Citrix ShareFile product. The vulnerabilities allow an attacker to potentially compromise the storage zone controller and gain access to sensitive ShareFile documents and folders.
2020-00006-SMBv3
08 April 2021, by Jeroen van de Weerd
A buffer overflow vulnerability in Kernel Address Space could be exploited with a specially crafted compressed file. DIVD warned that there was a serious threat, a worldwide scan showed there were 62.000 IP addresses with SMBv3.1.1. running and compression enabled. Microsoft published a patch, after the patch was released, it was not possible anymore to find vulnerable systems only by scanning, so no additional scans were performed.
Report DIVD-2020-00005– Apache Tomcat AJP
14 July, 2021, by Gerard Janssen
A vulnerability was found in Apache Tomcat, nicknamed Ghostcat. The DIVD scanned the web for vulnerable systems and shared this information through non-public CERT channels.
2020-00004-Mirai Botnet Infections
25 January 2021, by Jeroen van de Weerd
On 20-01-2020, DIVD CSIRT received a list of IP addresses, usernames and passwords belonging to systems that may have been part of the Mirai botnet. We informed the affected users. After receiving no response, no further action was taken.
2020-00003-Bluegate
29 January 2021, by Gerard Janssen
Microsoft published two patches for a vulnerability in Windows Remote Desktop Gateway. Microsoft researchers discovered that the RD Gateway had two memory corruption vulnerabilities (CVE-2020-0609 and CVE-2020-0610). DIVD found about 1.137 vulnerable Dutch systems and reported to the owners how to fix these.
2020-00002-Wildcard certificates on Citrix
11 November 2020, by Jeroen van de Weerd
Further analysis of the data on the Citrix vunerability showed that more than 450 of the 700 identified vulnerable Citrix systems were using so-called wildcard certificates, which are TLS certificates that are valid for all subdomains within a domain.
2020-00001-Citrix
13 March 2020, by Chris van ‘t Hof
On December 17th Citrix published a vulnerability in Citrix Application Delivery Controller (ADC) products. These products are also known as NetScaler ADC, Citrix Gateway en Netscaler Gateway. Exploitation of the vulnerability allows an attack to execute arbirary command’s on these servers. DIVDs Security Hotline scaned the Dutch IP range and reported to the owners.