Investigation of Session Hijacking via 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 as Read More …

Update now! Apple patches a raft of vulnerabilities

Apple has released security updates for its phones, iPads, Macs, watches and TVs. Updates are available for these products: iPhone XS and later, iPad Pro 12.9-inch 2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st generation and later, Read More …

The outstanding stealth of Operation Triangulation

In the previous blogpost on Triangulation, Kaspersky researchers discussed the details of TriangleDB, the main implant used in this campaign, its C2 protocol and the commands it can receive. The researchers mentioned, among other things, that it is able to Read More …

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 …

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 …

10 zero-day vulnerabilities in industrial cell router could lead to code execution, buffer overflows

Cisco Talos recently disclosed 11 vulnerabilities, 10 of which are zero-days without a patch in an industrial cellular router. Attackers could exploit these vulnerabilities in the Yifan YF325 to carry out a variety of attacks, in some cases gaining the 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 …

CISA Releases Three Industrial Control Systems Advisories

CISA released three Industrial Control Systems (ICS) advisories on October 5, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-278-01 Hitachi Energy AFS65x, AFF66x, AFS67x, and AFR67x Series Products ICSA-23-278-02 Qognify NiceVision Read Read More …