Schneider Electric IGSS SCADA Software

1. EXECUTIVE SUMMARY CVSS v3 7.8 ATTENTION: Low skill level to exploit Vendor: Schneider Electric Equipment: IGSS Interactive Graphical SCADA System Vulnerabilities: Improper Restriction of Operations within the Bounds of a Memory Buffer 2. RISK EVALUATION Successful exploitation of these...

More on the Chinese Zero-Day Microsoft Exchange Hack

Nick Weaver has an excellent post on the Microsoft Exchange hack: The investigative journalist Brian Krebs has produced a handy timeline of events and a few things stand out from the chronology. The attacker was first detected by one group on Jan. 5 and another on Jan. 6, and Microsoft acknowledg...

Microsoft Issues Security Patches for 89 Flaws — IE 0-Day Under Active Attacks

Microsoft plugged as many as 89 security flaws as part of its monthly Patch Tuesday updates released today, including fixes for an actively exploited zero-day in Internet Explorer that could permit an attacker to run arbitrary code on target machines. Of these flaws, 14 are listed as Critical, an...

Microsoft Issues Security Patches for 89 Flaws — IE 0-Day Under Active Attacks

Microsoft plugged as many as 89 security flaws as part of its monthly Patch Tuesday updates released today, including fixes for an actively exploited zero-day in Internet Explorer that could permit an attacker to run arbitrary code on target machines. Of these flaws, 14 are listed as Critical, an...

Microsoft Exchange attacks cause panic as criminals go shell collecting

Only last week we posted a blog about multiple zero-day exploits being used to attack on-premises versions of Microsoft Exchange Server in limited and targeted attacks. Seeing how this disclosure came with a patch being available, under normal circumstances you would see some companies update...

SolarWinds Hack — New Evidence Suggests Potential Links to Chinese Hackers

A malicious web shell deployed on Windows systems by leveraging a previously undisclosed zero-day in SolarWinds' Orion network monitoring software may have been the work of a possible Chinese threat group. In a report published by Secureworks on Monday, the cybersecurity firm attributed the...

SolarWinds Hack — New Evidence Suggests Potential Links to Chinese Hackers

A malicious web shell deployed on Windows systems by leveraging a previously undisclosed zero-day in SolarWinds' Orion network monitoring software may have been the work of a possible Chinese threat group. In a report published by Secureworks on Monday, the cybersecurity firm attributed the...

Apple Issues Patch for Remote Hacking Bug Affecting Billions of its Devices

Apple has released out-of-band patches for iOS, macOS, watchOS, and Safari web browser to address a security flaw that could allow attackers to run arbitrary code on devices via malicious web content. Tracked as CVE-2021-1844, the vulnerability was discovered and reported to the company by Clémen...

ImageMagick Studio ImageMagick numerical error vulnerability

ImageMagick is a software for creating, editing, and composing images that can read, convert, and write images in many formats. A de-zero vulnerability exists in coders/webp.c in versions prior to ImageMagick 7.0.10-62. An attacker can exploit this vulnerability via specially crafted files to...

TAU Threat Advisory: Microsoft Exchange Servers Targeted with Four Zero-day Exploits

The following advisory from VMware Threat Analysis Unit TAU is to provide guidance, best practices and capabilities to identify risk, prevent, detect and respond to this emerging threat. Summary On March 2, 2021 Microsoft announced four zero-day vulnerabilities CVE-2021-26855, CVE-2021-26857,...

A Basic Timeline of the Exchange Mass-Hack

Sometimes when a complex story takes us by surprise or knocks us back on our heels, it pays to revisit the events in a somewhat linear fashion. Heres a brief timeline of what we know leading up to last weeks mass-hack, when hundreds of thousands of Microsoft Exchange Server systems got compromise...

A week in security (March 1 – 7)

Last week on Malwarebytes Labs, our podcast featured Eva Galperin who talked to us about defending online anonymity and speech. We wrote about how Ryuk ransomware has developed a worm-like capability, how Exchange servers are attacked by Hafnium zero-days, 21 million free VPN users’ data was...

Threat Advisory: HAFNIUM and Microsoft Exchange zero-day

Microsoft released patches for four vulnerabilities in Exchange Server on March 2, disclosing that these vulnerabilities were being exploited by a previously unknown threat actor, referred to as HAFNIUM. The vulnerabilities in question — CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and...

Microsoft Exchange Cyber Attack — What Do We Know So Far?

Microsoft on Friday warned of active attacks exploiting unpatched Exchange Servers carried out by multiple threat actors, as the hacking campaign is believed to have infected tens of thousands of businesses, government entities in the U.S., Asia, and Europe. The company said "it continues to see...

Talos Takes Ep. #43: What you should know about the Microsoft Exchange Server zero-days

The latest episode of Talos Takes is available now. Download this episode and subscribe to Talos Takes using the buttons below, or visit the Talos Takes page. We put this episode together quickly this week to address the zero-day vulnerabilities Microsoft disclosed earlier this week in Exchange...

Zero-day vulnerabilities in Microsoft Exchange Server

What happened? On March 2, 2021 several companies released reports about in-the-wild exploitation of zero-day vulnerabilities inside Microsoft Exchange Server. The following vulnerabilities allow an attacker to compromise a vulnerable Microsoft Exchange Server. As a result, an attacker will gain...

CISA Orders Fed Agencies to Patch Exchange Servers

Hot on the heels of Microsoft’s announcement about active cyber-espionage campaigns that are exploiting four serious security vulnerabilities in Microsoft Exchange Server, the U.S. government is mandating patching for the issues. The news comes as security firms report escalating numbers of relat...

Threat Source newsletter (March 4, 2021)

Newsletter compiled by Jon Munshaw. Of course, we will start things off talking about the Microsoft Exchange Server zero-day vulnerabilities disclosed earlier this week. Microsoft said in a statement that a threat actor is exploiting these vulnerabilities in the wild to steal users’ emails,...

Extortion Gang Breaches Cybersecurity Firm Qualys Using Accellion Exploit

Enterprise cloud security firm Qualys has become the latest victim to join a long list of entities to have suffered a data breach after zero-day vulnerabilities in its Accellion File Transfer Appliance FTA server were exploited to steal sensitive business documents. As proof of access to the data...

CISA Issues Emergency Directive on In-the-Wild Microsoft Exchange Flaws

Following Microsoft's release of out-of-band patches to address multiple zero-day flaws in on-premises versions of Microsoft Exchange Server, the U.S. Cybersecurity and Infrastructure Security Agency CISA has issued an emergency directive warning of "active exploitation" of the vulnerabilities. T...