ModSecurity is an open-source Web Application Firewall (WAF) engine maintained by Trustwave. This blog post discusses an issue with four transformation actions that could enable a Denial of Service (DoS) attack by a malicious actor. The issue has been addressed with fixes in v3.0.10. ModSecurity v2 is not affected.
For over 25 years, a technology utilized for vital data and voice radio communications globally has remained under wraps, preventing in-depth testing for potential vulnerabilities. However, a small group of researchers in the Netherlands has now shed light on it, uncovering significant flaws, including a deliberate backdoor.
Kroll has identified two different file exfiltration methodologies leveraged by threat actors, primarily CLOP, during recent engagements involving the exploitation of the MOVEit vulnerability (CVE-2023-34362) throughout May and June 2023. In the vast majority of Kroll’s global MOVEit investigations, the primary data exfiltration method consisted of utilizing the dropped web shell to inject a session or create a malicious account (named Method 1 for this piece).
Recently, a team of experts from JumpSEC Labs discovered a vulnerability in Microsoft Teams that allows malicious actors to bypass policy controls and introduce malware through external communication channels. Leaving end-users susceptible to phishing attacks. Microsoft’s advice is to educate end-users to detect phishing attempts. One workaround would be to disable Microsoft Teams collaboration with external organizations.
