Threat Research
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- Active Directory Backup & Recovery (59)
- Active Directory Security (189)
- AD Security 101 (17)
- Community Tools (17)
- Directory Modernization (9)
- From the Front Lines (67)
- Hybrid Identity Protection (60)
- Identity Attack Catalog (12)
- Identity Threat Detection & Response (125)
- Our Mission: Be a Force for Good (14)
- Purple Knight (5)
- The CISO's Perspective (14)
- Threat Research (48)
- Uncategorized (1)
How to Defend Against SID History Injection
- Daniel Petri | Senior Training Manager
- May 03, 2024
Security Identifier (SID) History injection is a sophisticated cyberattack vector that targets Windows Active Directory environments. This attack exploits the SID History attribute, which is intended to maintain user access rights during migrations from one domain to another. By injecting malicious SID values into this attribute, an attacker can escalate…
Meet Silver SAML: Golden SAML in the Cloud
- Tomer Nahum and Eric Woodruff
- Feb 29, 2024
Key findings Golden SAML, an attack technique that exploits the SAML single sign-on protocol, was used as a post-breach exploit, compounding the devastating SolarWinds attack of 2020—one of the largest breaches of the 21st century. The supply chain SolarWinds attack affected thousands of organizations around the world, including the U.S.…
How to Defend Against a Pass the Ticket Attack: AD Security 101
- Daniel Petri | Senior Training Manager
Any organization that relies on Kerberos authentication—the primary authentication method in Active Directory environments—is potentially vulnerable to a Pass the Ticket attack. Organizations that do not regularly patch their systems, monitor and secure Active Directory, and follow robust security measures for credential and ticket protection are at a higher risk.…
Using Purple Knight to Detect the Okta Super Admin Attack
- Yossi Rachman
The recent increase in sophisticated cyberattacks highlights the vulnerabilities inherent in online platforms and identity management systems. To address the increased risk, Semperis recently expanded Purple Knight, its open-source, community-based vulnerability assessment tool, to encompass the Okta identity management platform. This strategic move is geared toward bolstering the security of…
Semperis Offers New Protection Against Okta Breaches
- Semperis Research Team
In an ever-evolving digital landscape, organizations rely on robust identity protection solutions to safeguard sensitive data and maintain secure operations. For most enterprise businesses, that means protecting Active Directory and Entra ID (formerly Azure AD). But identity protection is just as vital for organizations that use Okta, a cloud-based identity…
How to Protect Active Directory Against Kerberoasting: AD Security 101
- Daniel Petri | Senior Training Manager
Active Directory (AD) remains a crucial backbone for enterprise IT environments, centralizing authentication and authorization for users and computers. However, Active Directory’s importance—coupled with its age and the technical debt it often accrues—makes it a primary target for cyberattacks. One common attack technique, called Kerberoasting, exploits the Kerberos authentication protocol…
How to Prevent a Man-in-the-Middle Attack: AD Security 101
- Daniel Petri | Senior Training Manager
A man-in-the-middle attack, also known as an MitM attack, is a form of eavesdropping in an attempt to steal sensitive data, such as user credentials. These attacks can pose a serious threat to organizations' network security, particularly in environments that use Microsoft Active Directory (AD) for identity management. As Active…
Transitive Trust and Breaking Trust Transitivity: AD Security 101
- Charlie Clark
While playing with Kerberos tickets, I discovered an issue that allowed me to authenticate to other domains within an Active Directory (AD) forest across external non-transitive trusts. This means that there is in fact no such thing as a “non-transitive trust.” The term is at best misleading and offers systems…
