Tag Archives: MSHTML

May Microsoft Patch Tuesday

May Microsoft Patch TuesdayMay Microsoft Patch TuesdayMay Microsoft Patch TuesdayMay Microsoft Patch TuesdayMay Microsoft Patch TuesdayMay Microsoft Patch TuesdayMay Microsoft Patch Tuesday

May Microsoft Patch Tuesday. There are 91 vulnerabilities in total. Of those, 29 were added between April and May Patch Tuesday.

Two vulnerabilities have signs of exploitation in the wild and the presence of a functional exploit (not yet public):

🔻 Security Feature Bypass – Windows MSHTML Platform (CVE-2024-30040). In fact, an attacker can execute arbitrary code when the victim opens a specially crafted document. It is exploited through phishing.
🔻 Elevation of Privilege – Windows DWM Core Library (CVE-2024-30051). A local attacker can gain SYSTEM privileges on the vulnerable host. Microsoft credits four different groups for reporting the bug, indicating that the vulnerability is being widely exploited. The vulnerability is associated with the QakBot malware.

Among the rest we can note:

🔸 Security Feature Bypass – Windows Mark of the Web (CVE-2024-30050). Such vulnerabilities have been frequently exploited recently. Microsoft indicates that there is a functional exploit (private) for the vulnerability.
🔸 Remote Code Execution – Microsoft SharePoint Server (CVE-2024-30044). An authenticated attacker with Site Owner privileges or higher can execute arbitrary code in the context of SharePoint Server by uploading a specially crafted file.
🔸 Elevation of Privilege – Windows Search Service (CVE-2024-30033). ZDI believes that the vulnerability has the potential to be exploited in the wild.
🔸 Remote Code Execution – Microsoft Excel (CVE-2024-30042). An attacker can execute code, presumably in the user’s context, when a malicious file is opened.

🗒 Vulristics report

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Microsoft Patch Tuesday July 2023: Vulristics improvements, Office RCE, SFB SmartScreen and Outlook, EoP MSHTML and ERS, other RCEs

Microsoft Patch Tuesday July 2023: Vulristics improvements, Office RCE, SFB SmartScreen and Outlook, EoP MSHTML and ERS, other RCEs. Hello everyone! This episode will be about Microsoft Patch Tuesday for July 2023, including vulnerabilities that were added between June and July Patch Tuesdays.

Alternative video link (for Russia): https://vk.com/video-149273431_456239131

As usual, I use my open source Vulristics project to analyse and prioritize vulnerabilities.

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PHDays 11: towards the Independence Era

PHDays 11: towards the Independence Era. Hello everyone! In this episode, I want to talk about the Positive Hack Days 11 conference, which took place on May 18 and 19 in Moscow. As usual, I want to express my personal opinion about this event.

Alternative video link (for Russia): https://vk.com/video-149273431_456239091

As I did last year, I want to start talking about this conference with a few words about the sanctions. US sanctions against Positive Technologies, the organizers of Positive Hack Days, were introduced a year ago. At that time it seemed very serious and extraordinary. But today, when our country has become the most sanctioned country in the world, those sanctions against Positive Technologies seem very ordinary and unimportant. In fact, it even seems to benefit the company somehow.

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Security News: Microsoft Patch Tuesday September 2021, OMIGOD, MSHTML RCE, Confluence RCE, Ghostscript RCE, FORCEDENTRY Pegasus

Security News: Microsoft Patch Tuesday September 2021, OMIGOD, MSHTML RCE, Confluence RCE, Ghostscript RCE, FORCEDENTRY Pegasus. Hello everyone! This time, let’s talk about recent vulnerabilities. I’ll start with Microsoft Patch Tuesday for September 2021. I created a report using my Vulristics tool. You can see the full report here.

The most interesting thing about the September Patch Tuesday is that the top 3 VM vendors ignored almost all RCEs in their reviews. However, there were interesting RCEs in the Office products. And what is most unforgivable is that they did not mention CVE-2021-38647 RCE in OMI – Open Management Infrastructure. Only ZDI wrote about this.

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Vulristics: Microsoft Patch Tuesdays Q2 2021

Vulristics: Microsoft Patch Tuesdays Q2 2021. Hello everyone! Let’s now talk about Microsoft Patch Tuesday vulnerabilities for the second quarter of 2021. April, May and June. Not the most exciting topic, I agree. I am surprised that someone is reading or watching this. For me personally, this is a kind of tradition. Plus this is an opportunity to try Vulristics in action and find possible problems. It is also interesting to see what VM vendors considered critical back then and what actually became critical. I will try to keep this video short.

First of all, let’s take a look at the vulnerabilities from the April Patch Tuesday. 108 vulnerabilities, 55 of them are RCEs. Half of these RCEs (27) are weird RPC vulnerabilities. “Researcher who reported these bugs certainly found quite the attack surface”. The most critical vulnerability is RCE in Exchange (CVE-2021-28480). This is not ProxyLogon, this is another vulnerability. ProxyLogon was in March. And this vulnerability is simply related to ProxyLogon, so it is believed that it is exploited in the wild as well. In the second place this Win32k Elevation of Privilege (CVE-2021-28310). It is clearly mentioned in several sources as being used in real attacks. “Bugs of this nature are typically combined with other bugs, such as a browser bug or PDF exploit, to take over a system”. And the only vulnerability with a public exploit is the Azure DevOps Server Spoofing (CVE-2021-28459). Previously known as Team Foundation Server (​TFS), Azure DevOps Server is a set of collaborative software development tools. It is hosted on-premises. Therefore, this vulnerability can be useful for attackers.

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Microsoft Patch Tuesday August 2020: vulnerabilities with Detected Exploitation, useful for phishing and others

Microsoft Patch Tuesday August 2020: vulnerabilities with Detected Exploitation, useful for phishing and others. This time I would like to review not only the vulnerabilities that were published in the last August Microsoft Patch Tuesday, but also the CVEs that were published on other, not Patch Tuesday, days. Of course, if there are any.

But let’s start with the vulnerabilities that were presented on MS Patch Tuesday on August 11th. There were 120 vulnerabilities: 17 of them are Critical and 103 Important. My vulristics script could not find public exploits for these vulnerabilities on Vulners.com.

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