Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

The education industry isn’t just in the business of teaching students, it’s also responsible for a lot of data, primarily personally identifiable information (PII), making these organizations a major target for threat actors. In March of 2023, Minneapolis Public Schools saw ransomware group Medusa publish current and former students “former student records, parent contacts, home addresses and IDs with pictures.” Unfortunately, this instance isn’t an outlier.

On February 8, 2024, Ivanti publicly disclosed a high-severity authentication bypass vulnerability (CVE-2024-22024) impacting Ivanti Connect Secure, Policy Secure, and ZTA products. CVE-2024-22024 is an XML external entity (XXE) flaw in the SAML component and could allow threat actors to bypass authentication and access certain restricted resources if successfully exploited.

On February 8, 2024, Fortinet’s FortiGuard disclosed two critical vulnerabilities affecting FortiOS. CVE-2024-23113, a format string vulnerability, and CVE-2024-21762, an out-of-bounds write vulnerability, could allow unauthenticated threat actors to execute arbitrary code or commands. FortiGuard has stated they are aware of potential exploitation of CVE-2024-21762.

On February 7, 2024, CISA issued an advisory detailing their discoveries concerning state-sponsored cyber actors linked to the People’s Republic of China (PRC). Notably, the PRC-affiliated threat actor, Volt Typhoon, is actively engaged in efforts to infiltrate IT networks, with the potential aim of launching cyber attacks on vital U.S. infrastructure in the event of a substantial crisis or conflict with the United States.

On January 4, 2024, Atlassian disclosed CVE-2023-22527, a template injection vulnerability affecting Confluence Data Center and Server versions 8.0.0 to 8.5.3. The vulnerability allows for unauthenticated remote code execution to be achieved on affected versions of the software. Arctic Wolf Labs has observed evidence of C3RB3R ransomware, as well as several other malicious payloads, being deployed following exploitation of CVE-2023-22527. We present our preliminary findings here.

On February 2, 2024, AnyDesk confirmed a compromise of its production systems in a security advisory, leading the company to revoke all security-related keys, including the cryptographic code-signing certificate used to publish their software. As an additional precaution, AnyDesk also reset user passwords on the AnyDesk web portal. AnyDesk has started using a new code signing certificate as of AnyDesk version 8.0.8.

On January 31, 2024, Ivanti published an article disclosing two high severity vulnerabilities: CVE-2024-21893: A server-side request forgery flaw present in the SAML component of Ivanti Connect Secure, Ivanti Policy Secure, and Ivanti Neurons. This vulnerability allows an unauthenticated threat actor to access restricted resources. Ivanti reports that a limited number of customers have been affected by this vulnerability.

Microsoft PowerShell is a ubiquitous piece of software. It’s also, unfortunately, a major attack vector for threat actors. Once a threat actor has initial access into a network, they can utilize the commands and scripts components of PowerShell to conduct reconnaissance or inject fileless malware into the network. This activity is so common it’s continually listed as one of the top tactics, techniques, and procedures (TTPs).