Black Kingdom Ransomware Hunting Unpatched Microsoft Exchange Servers

More than a week after Microsoft released a one-click mitigation tool to mitigate cyberattacks targeting on-premises Exchange servers, the company disclosed that patches have been applied to 92% of all internet-facing servers affected by the ProxyLogon vulnerabilities. The development, a 43%...

オンプレミス Exchange Server の脆弱性の調査や修復に対応する方向けのガイダンス

「Guidance for responders: Investigating and remediating on-premises Exchange Server vulnerabilities」の日本語抄訳です。 最近一般に公開さ...

Using CHIRP to Detect Post-Compromise Threat Activity in On-Premises Environments

CISA Hunt and Incident Response Program CHIRP is a new forensics collection tool that CISA developed to help network defenders find indicators of compromise IOCs associated with the SolarWinds and Active Directory/M365 Compromise. CHIRP is freely available on the CISA GitHub repository. Similar t...

Guidance for responders: Investigating and remediating on-premises Exchange Server vulnerabilities

This guidance will help customers address threats taking advantage of the recently disclosed Microsoft Exchange Server on-premises vulnerabilities CVE-2021-26855, CVE-2021-26858, CVE-2021-26857, and CVE-2021-27065, which are being exploited. We strongly urge customers to immediately update system...

Guidance for responders: Investigating and remediating on-premises Exchange Server vulnerabilities

This guidance will help customers address threats taking advantage of the recently disclosed Microsoft Exchange Server on-premises vulnerabilities CVE-2021-26855, CVE-2021-26858, CVE-2021-26857, and CVE-2021-27065, which are being exploited. We strongly urge customers to immediately update system...

Microsoft Releases Exchange On-premises Mitigation Tool

Microsoft has released the Exchange On-premises Mitigation Tool EOMT.ps1 that can automate portions of both the detection and patching process. Microsoft stated the following along with the release: "the tool is intended to help customers who do not have dedicated security or IT teams to apply...

One-Click Microsoft Exchange On-Premises Mitigation Tool – March 2021

We have been actively working with customers through our customer support teams, third-party hosters, and partner network to help them secure their environments and respond to associated threats from the recent Exchange Server on-premises attacks. Based on these engagements we realized that there...

One-Click Microsoft Exchange On-Premises Mitigation Tool - March 2021

We have been actively working with customers through our customer support teams, third-party hosters, and partner network to help them secure their environments and respond to associated threats from the recent Exchange Server on-premises attacks. Based on these engagements we realized that there...

One-Click Microsoft Exchange On-Premises Mitigation Tool - March 2021

We have been actively working with customers through our customer support teams, third-party hosters, and partner network to help them secure their environments and respond to associated threats from the recent Exchange Server on-premises attacks. Based on these engagements we realized that there...

Microsoft Exchange and Verkada Hacks: Isolate Your Apps and APIs from the Internet Cesspool

It's been an interesting start to March in terms of public security incidents. This month kicked off with multiple zero-day exploits being used to attack on-premises versions of Microsoft Exchange Server. And, as if that wasn't enough, that attack was quickly followed by the news that a hacktivis...

ProxyLogon PoC Exploit Released; Likely to Fuel More Disruptive Cyber Attacks

The U.S. Cybersecurity and Infrastructure Security Agency CISA and the Federal Bureau of Investigation FBI on Wednesday issued a joint advisory warning of active exploitation of vulnerabilities in Microsoft Exchange on-premises products by nation-state actors and cybercriminals. "CISA and FBI...

Microsoft Exchange Server Vulnerabilities Mitigations – updated March 15, 2021

Update March 15, 2021: If you have not yet patched, and have not applied the mitigations referenced below, a one-click tool, the Exchange On-premises Mitigation Tool is now our recommended path to mitigate until you can patch. Microsoft previously blogged our strong recommendation that customers...

Microsoft Exchange Server Vulnerabilities Mitigations - updated March 15, 2021

Update March 15, 2021: If you have not yet patched, and have not applied the mitigations referenced below, a one-click tool, the Exchange On-premises Mitigation Tool is now our recommended path to mitigate until you can patch. Microsoft previously blogged our strong recommendation that customers...

Microsoft Exchange Server Vulnerabilities Mitigations - updated March 15, 2021

Update March 15, 2021: If you have not yet patched, and have not applied the mitigations referenced below, a one-click tool, the Exchange On-premises Mitigation Tool is now our recommended path to mitigate until you can patch. Microsoft previously blogged our strong recommendation that customers...

Microsoft Releases Alternative Mitigations for Exchange Server Vulnerabilities

Microsoft has released alternative mitigation techniques for Exchange Server customers who are not able to immediately apply updates that address vulnerabilities disclosed on March 2, 2021. CISA and Microsoft encourages organizations to upgrade their on-premises Exchange environments to the lates...

IAM Never Gonna Give You Up, Never Gonna Breach Your Cloud

This blog is part of an ongoing series sharing key takeaways from Rapid7’s 2020 Cloud Security Executive Summit. Interested in participating in the next summit on Tuesday, March 9? Register here! Identity and access management IAM credentials have solved myriad security issues, but the recent...

URGENT — 4 Actively Exploited 0-Day Flaws Found in Microsoft Exchange

Microsoft has released emergency patches to address four previously undisclosed security flaws in Exchange Server that it says are being actively exploited by a new Chinese state-sponsored threat actor with the goal of perpetrating data theft. Describing the attacks as "limited and targeted,"...

Citrix Endpoint Management (aka XenMobile Server) 10.13.0 Rolling Patch 2

Package name:xms10.13.0.10212.bin For: XenMobile Server 10.13.0 Deployment type: On-premises only Replaces:xms10.13.0.10129.bin Date:February, 2021 Languages supported:English US Readme version:1.00 Readme Revision History Version| Date| Change Description ---|---|--- 1.00| February, 2021| Initia...

Security Bulletin: Multiple security vulnerabilities may affect IBM DB2 shipped with Predictive Maintenance and Quality and Predictive Maintenance Insights On-Premises

Summary IBM DB2 is shipped with IBM Predictive Maintenance and Quality and Predictive Maintenance Insights On-Premises. Information about security vulnerabilities affecting DB2 has been published in multiple security bulletins as below. Vulnerability Details Refer to the security bulletins listed...

Security Bulletin: Security vulnerability in WebSphere Application Server shipped with Predictive Maintenance and Quality and Predictive Maintenance Insights On-Premises

Summary IBM WebSphere Application Server is shipped with IBM Predictive Maintenance and Quality and Predictive Maintenance Insights On-Premises. WebSphere Application Server Admin Console is vulnerable to a directory traversal vulnerability CVE-2020-4782. Vulnerability Details Refer to the securi...