This month’s Microsoft Patch Tuesday addresses 59 vulnerabilities with only 9 of them labeled as Critical. Of the 9 Critical vulns, 7 of them are for browsers and scripting engines. The remaining 2 are for Azure App Service and Remote Desktop Client. In addition, PoC code has been published for an Important Windows Error Reporting vulnerability. Adobe has not posted any patches for Patch Tuesday, but did issue out-of-band patches for ColdFusion on September 24th.

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Microsoft released an out-of-band update yesterday that fixes two critical vulnerabilities – The Internet Explorer remote code execution vulnerability (CVE-2019-1367) and Microsoft Defender Denial of Service Vulnerability (CVE-2019-1255).

According to the Microsoft advisory CVE-2019-1367, the Internet Explorer scripting engine vulnerability has been exploited in active attacks in the wild. Users are advised to manually update their systems immediately.

UPDATE: Added methods to detect Internet Explorer installs vulnerable to CVE-2019-1367 using only Free Qualys Global IT Asset Inventory, as well as how to patch by CVE with Qualys Patch Management.

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This month’s Microsoft Patch Tuesday addresses 79 vulnerabilities with 17 of them labeled as Critical. Of the 17 Critical vulns, 8 are for scripting engines and browsers, 4 are for the Remote Desktop Client, and 3 are for SharePoint. In addition, Microsoft has again patched a critical vulnerability in LNK files, along with a vuln in Azure DevOps / TFS. Adobe has also released patches for Flash and Application Manager.

Update: Following Patch Tuesday, Microsoft updated the entries for CVE-2019-1214 and CVE-2019-1215 to remove the “exploited” label.

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Cisco published an update for Cisco IOS XE operating system to patch a critical vulnerability that could allow a remote attacker to bypass authentication on devices running an outdated version of Cisco REST API virtual service container.

The security issue is tracked as CVE-2019-12643 and has received a maximum severity rating score of 10 based on CVSS v3 Scoring system.

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In the August 2019 Patch Tuesday release, Microsoft disclosed 7 RDP Vulnerabilities, out of which 4 are labeled as critical and 3 as important. All the critical vulnerabilities exist in Remote Desktop Services – formerly known as Terminal Services – and do not require authentication or user interaction. To exploit the vulnerabilities, an attacker would need to send a specially crafted request to the target systems Remote Desktop Service via RDP.

The cyber industry has named them as Seven Monkeys pertaining to seven CVEs released. Microsoft has released patches for these vulnerabilities and at least two of these (CVE-2019-1181 & CVE-2019-1182) can be considered “wormable” and equates them to BlueKeep. Of the three “Important” RDP vulnerabilities, one (CVE-2019-1223) is a DoS, and the other two (CVE-2019-1224 and CVE-2019-1225) disclose memory contents. Microsoft update addresses the vulnerability by correcting how Remote Desktop Services handles connection requests.

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Update Aug 13, 2019: Detect and Patch Windows Remote Desktop Vulnerabilities

This month’s Microsoft Patch Tuesday addresses 93 vulnerabilities with 29 of them labeled as Critical. Of the 29 Critical vulns, 10 are for scripting engines and browsers, 6 for Windows Graphics/Font Library, and 4 are for Office apps. In addition, Microsoft has patched 4 (!) Critical RCEs in Remote Desktop (plus 3 Important), 2 for Hyper-V, 2 in DHCP Client/Server, and one for LNK files. Adobe has also released a large number of patches covering multiple products.

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This month’s Microsoft Patch Tuesday addresses 77 vulnerabilities with 15 of them labeled as Critical. Of the 15 Critical vulns, 11 are for scripting engines and browsers, with the remaining four covering DHCP Server, GDI+, .NET Framework, and Azure DevOps Server / Team Foundation Server. In addition, Microsoft has released Important patches for two actively exploited privilege escalation vulnerabilities, as well as a SQL Server RCE. Microsoft also issued two advisories for Outlook on the web and Linux Kernel vulnerabilities. Adobe issued patches today for Bridge CC, Experience Manager, and Dreamweaver.

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Last week, Qualys issued a security advisory for a vulnerability we discovered during a code review of Exim. This vulnerability can lead to Remote Command Injection, and is currently being actively attacked in the wild. This blog will show you how to quickly identify assets that are impacted by this vulnerability.

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This month’s Microsoft Patch Tuesday addresses 88 vulnerabilities with 21 of them labeled as Critical. Of the 21 Critical vulns, 17 are for scripting engines and browsers, and 3 are potential hypervisor escapes in Hyper-V. The remaining vulnerability is an RCE in the Microsoft Speech API. Microsoft also issued guidance on Bluetooth Low Energy FIDO keys, HoloLens, and Microsoft Exchange. Adobe issues patches today for Flash, ColdFusion, and Campaign.

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This month’s Microsoft Patch Tuesday included a very high-risk vulnerability (CVE-2019-0708, aka BlueKeep) in Remote Desktop that impacts Windows XP, Windows 7, Server 2003, Server 2008, and Server 2008 R2. This vulnerability allows an unauthenticated attacker (or malware) to execute code on the vulnerable system. It is very likely that PoC code will be published soon, and this may result in a WannaCry-style attack.

Microsoft has not only released patches for Windows 7, Server 2008 & R2, but also has taken the extra step to issue patches for Windows XP and Server 2003. Patch now!

UPDATE: Network Level Authentication (NLA) partially mitigates this vulnerability. QID 90788 (Microsoft Windows Network Level Authentication Disabled) can be used to find hosts that have NLA disabled. This forces the attacker to have valid credentials in order to perform RCE.

UPDATE: A new remote (unauthenticated) check was released under QID 91541. See below for details.

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