Threat Research
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CVE-2022-26923: Know Your AD Vulnerability
- Semperis Research Team
On May 10, 2022, a vulnerability within Active Directory (AD) and Active Directory Certificate Services (AD CS) was disclosed and patched. This AD vulnerability can lead to privilege escalation. In default installations of AD CS, a low-privileged user can exploit the vulnerability by requesting an authentication certificate and then using…
Identity Attack Watch: July 2022
- Semperis Research Team
Cyberattacks targeting Active Directory are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against attacks involving AD, the Semperis Research Team offers this monthly roundup of recent cyberattacks that used AD…
A Diamond Ticket in the Ruff
- Charlie Clark
[Editor’s note: This blog was co-authored by Andrew Schwartz at TrustedSec.] One day, while browsing YouTube, we came across a Black Hat 2015 presentation by Tal Be’ery and Michael Cherny. In their talk and subsequent brief, Watching the Watchdog: Protecting Kerberos Authentication with Network Monitoring, Be’ery and Cherny outlined something…
Identity Attack Watch: June 2022
- Semperis Research Team
Cyberattacks targeting Active Directory are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against attacks involving AD, the Semperis Research Team offers this monthly roundup of recent cyberattacks that used AD…
Identity Attack Watch: May 2022
- Semperis Research Team
Cyberattacks targeting Active Directory are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against attacks involving AD, the Semperis Research Team offers this monthly roundup of recent cyberattacks that used AD…
Revisiting the Colonial Pipeline Cyberattack, One Year Later
- Semperis Team
The Colonial Pipeline cyberattack in May 2021 ranks as one of the top critical infrastructure attacks to date. At the time, Semperis Director of Services Sean Deuby predicted that the ransomware-as-a-service (RaaS) attack was an “implication of what is to come … open season on infrastructure providers.” One year later,…
Identity Attack Watch: April 2022
- Semperis Research Team
Cyberattacks targeting Active Directory are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against cyberattacks targeting Active Directory, the Semperis Research Team offers this monthly roundup of recent attacks that used…
Identity Attack Watch: March 2022
- Semperis Research Team
Cyberattacks targeting Active Directory (AD) are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against attacks involving AD, the Semperis Research Team offers this monthly roundup of recent cyberattacks that used…
