Multiple North Korean threat actors exploiting the TeamCity CVE-2023-42793 vulnerability

Since early October 2023, Microsoft has observed two North Korean nation-state threat actors – Diamond Sleet and Onyx Sleet – exploiting CVE-2023-42793, a remote-code execution vulnerability affecting multiple versions of JetBrains TeamCity server. TeamCity is a continuous integration/continuous deployment (CI/CD) Read More …

Government-backed actors exploiting WinRAR vulnerability

In recent weeks, Google’s Threat Analysis Group’s (TAG) has observed multiple government-backed hacking groups exploiting the known vulnerability, CVE-2023-38831, in WinRAR, which is a popular file archiver tool for Windows. Cybercrime groups began exploiting the vulnerability in early 2023, when Read More …

Remediation for Citrix NetScaler ADC and Gateway Vulnerability (CVE-2023-4966)

On Oct. 10, 2023, Citrix released a security bulletin for a sensitive information disclosure vulnerability (CVE-2023-4966) impacting NetScaler ADC and NetScaler Gateway appliances. Mandiant has identified zero-day exploitation of this vulnerability in the wild beginning in late August 2023. Successful Read More …

Update now! Atlassian Confluence vulnerability is being actively exploited

Microsoft Threat Intelligence has revealed that it has been tracking the active exploitation of a vulnerability in Atlassian Confluence software since September 14, 2023. At the time the attacks were first observed the vulnerability was a zero-day, meaning that no Read More …

CISA catalog passes 1,000 known-to-be-exploited vulnerabilities. Celebration time, or is it?

On September 18, 2023, the Cybersecurity & Infrastructure Security Agency (CISA) announced that its Known Exploited Vulnerabilities (KEV) catalog has reached the milestone of covering more than 1,000 vulnerabilities since its launch in November 2021. This may seem like a Read More …

Emergency update: Apple patches three zero-days

Apple has released security updates for several products to address a handful of zero-day vulnerabilities that may already have been used by criminals. Updates are available for: iOS 16.7 and iPadOS 16.7 iOS 17.0.1 and iPadOS 17.0.1 watchOS 9.6.3 watchOS Read More …

ThemeBleed exploit is another reason to patch Windows quickly

Included in the September 2023 Patch Tuesday updates was a fix for a vulnerability which has been dubbed ThemeBleed. A Proof-of-Concept (PoC) exploit has been released by Gabe Kirkpatrick, one of the researchers acknowledged for reporting the vulnerability. The Common Read More …

Unusually low 5 critical vulnerabilities included in Microsoft September Patch Tuesday, along with two zero-days

Microsoft disclosed 65 vulnerabilities across its suite of products and software Tuesday, only five of which are considered critical, which is very low compared to Microsoft’s usual security updates. However, there are two issues disclosed and patched this month that Read More …

Apple fixes zero-day bugs used to plant Pegasus spyware

Apple released security updates on Thursday that patch two zero-day exploits — meaning hacking techniques that were unknown at the time Apple found out about them — used against a member of a civil society organization in Washington, D.C., according Read More …

Multiple Threats Target Adobe ColdFusion Vulnerabilities

This past July, Adobe responded to reports of exploits targeting pre-authentication remote code execution (RCE) vulnerabilities in their ColdFusion solution by releasing a series of security updates: APSB23-40, APSB23-41, and APSB23-47. An in-depth analysis of those exploits has been documented Read More …