{"id":41261,"date":"2021-06-09T00:21:00","date_gmt":"2021-06-09T00:21:00","guid":{"rendered":"https:\/\/www.threatshub.org\/blog\/extra-urgency-in-junes-patch-tuesday-microsoft-warns-six-more-bugs-are-being-exploited\/"},"modified":"2021-06-09T00:21:00","modified_gmt":"2021-06-09T00:21:00","slug":"extra-urgency-in-junes-patch-tuesday-microsoft-warns-six-more-bugs-are-being-exploited","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/extra-urgency-in-junes-patch-tuesday-microsoft-warns-six-more-bugs-are-being-exploited\/","title":{"rendered":"Extra urgency in June&#8217;s Patch Tuesday: Microsoft warns six more bugs are being exploited"},"content":{"rendered":"<p><span data-label=\"patch tuesday\">Patch Tuesday<\/span> Microsoft&#8217;s traditional Patch Tuesday saw the software giant release fixes for <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-us\">50 flaws<\/a>, and a reminder to apply updates as soon as possible because six of them are being exploited in the wild by miscreants.<\/p>\n<p>Potentially the most serious of the six, <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2021-33742\">CVE-2021-33742<\/a>, allows for remote code execution via the Windows MSHTML Platform. Details of this security hole have been disclosed in some form, we&#8217;re told. Shane Huntley, director of the Google&#8217;s Threat Analysis Group, <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/www.tenable.com\/blog\/microsoft-june-2021-patch-tuesday-49-cves-cve-2021-31955-cve-2021-31956-and-cve-2021-33742\">noted<\/a> a \u201ccommercial exploit company\u201d seems to be linked to this vulnerability \u201cfor limited nation state Eastern Europe and Middle East targeting.\u201d<\/p>\n<p>The bug is present on PC and server platforms going all the way back to Windows 7, and comes with a CVSS score of 7.5. A maliciously crafted webpage or some other file can execute arbitrary code on the machine when opened and parsed by MSHTML, which is &#8220;used by Internet Explorer mode in Microsoft Edge as well as other applications through WebBrowser control,&#8221; according to Microsoft.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"condor\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,leaderboard,mpu,\" data-lg=\",fluid,leaderboard,\" data-xlg=\",fluid,superleaderboard,billboard,leaderboard,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" target=\"_blank\" rel=\"noopener noreferrer\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>The other five exploited-in-the-wild flaws are all rated as important; four deal with elevations of privilege, and there&#8217;s a single information leakage issue. While this might not sound too bad, it&#8217;s weaknesses like this that are much beloved by crooks looking to move around networks and sow malware after an initial intrusion. Details of one of the exploited privilege-escalation bugs (<a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/portal.msrc.microsoft.com\/en-US\/security-guidance\/advisory\/CVE-2021-33739\">CVE-2021-33739<\/a>)<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xxlg=\",fluid,billboard,superleaderboard,brandwidth,brandimpact,leaderboard,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener noreferrer\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<div class=\"adun_eagle_desktop_story_wrapper\">\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"mid\" data-raptor=\"eagle\" data-xxlg=\",mpu,dmpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener noreferrer\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<\/p><\/div>\n<p>are said to be public.<\/p>\n<p>An additional important denial-of-service vulnerability with Remote Desktop Services, <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2021-31968\">CVE-2021-31968<\/a>, that goes back to Windows 7 has been publicly disclosed, too, Microsoft notes, but not yet exploited in the wild. Nevertheless, patch sooner rather than later.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,leaderboard,mpu,\" data-lg=\",fluid,mpu,leaderboard,\" data-xlg=\",fluid,billboard,superleaderboard,mpu,leaderboard,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener noreferrer\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>In all, five of the 50 flaws are critical, though they are in high-value areas that criminals would love to exploit. One critical issue is in Microsoft Defender, though that&#8217;ll be automatically patched, as will the critical VP9 codecs flaw from the Microsoft Store. The others will need patching, warned ZDI&#8217;s Dustin Childs.<\/p>\n<p>&#8220;The remaining critical-rated bugs include a browse-and-own bug in the scripting engine and a remote code execution vulnerability in SharePoint,&#8221; Childs <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/www.zerodayinitiative.com\/blog\/2021\/6\/8\/the-june-2021-security-update-review\">wrote<\/a>.<\/p>\n<p>&#8220;The SharePoint bug requires no user interaction but does require some level of privilege. The attack complexity is listed as high, but considering the target, attackers are likely to do everything possible to turn this into a practical exploit.&#8221;<\/p>\n<p>Microsoft Office got its usual patches, as did Edge, Outlook, Excel, Visual Studio and, funnily enough, Windows Cryptographic Services.<\/p>\n<h3 class=\"crosshead\"> <span>And the rest<\/span><br \/>\n<\/h3>\n<p>Not to be outdone, Adobe released a monster patch bundle too, with 39 fixes for ten of the venerable software house&#8217;s macOS and Windows applications.<\/p>\n<p>Top of the list is After Effects, with <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/helpx.adobe.com\/security\/products\/after_effects\/apsb21-49.html\">eight critical vulns<\/a> in Adobe&#8217;s buffer code, which can be exploited to achieve code execution (all rated CVSS 7.8), seven important issues, and one moderate mistake. Acrobat and Reader got <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/helpx.adobe.com\/security\/products\/acrobat\/apsb21-37.html\">five critical fixes<\/a>, all allowing for code execution and all down to Adobe&#8217;s buffer issues again, as are the <a target=\"_blank\" href=\"https:\/\/helpx.adobe.com\/security\/products\/photoshop\/apsb21-38.html\" rel=\"noopener noreferrer\">two critical flaws<\/a> fixed in PhotoShop.<\/p>\n<p>Adobe says none of the flaws are being actively exploited in the wild, as far as anyone knows, though patching as soon as possible is advised.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"mid\" data-raptor=\"eagle\" data-xsm=\",mpu,dmpu,\" data-sm=\",mpu,dmpu,\" data-md=\",mpu,dmpu,\" data-lg=\",mpu,dmpu,\" data-xlg=\",mpu,dmpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener noreferrer\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33YMAg5FUIbrgG4Fc-HS9fGQAAAAY&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>Intel, meanwhile, <a target=\"_blank\" href=\"https:\/\/www.intel.com\/content\/www\/us\/en\/security-center\/default.html\" rel=\"noopener noreferrer\">issued<\/a> 29 security advisories covering 79 specific flaws, over half of which it found itself and another 40 per cent coming from Intel&#8217;s bug bounty program, <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/blogs.intel.com\/technology\/2021\/06\/intel-security-advisories-for-june-2021\/\">according to<\/a> Jerry Bryant, Chipzilla&#8217;s director of security communications.<\/p>\n<p>SAP also dumped out <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/wiki.scn.sap.com\/wiki\/pages\/viewpage.action?pageId=578125999\">17 security notices<\/a>, a mostly harmless bunch but with some nasty remote code execution flaws. And Android put its <a target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\/\/source.android.com\/security\/bulletin\/2021-06-01\">Android patches<\/a> out on Monday, which should be automatically applied depending on your handset provider. \u00ae<\/p>\n<p> READ MORE <a href=\"https:\/\/go.theregister.com\/feed\/www.theregister.com\/2021\/06\/09\/june_patch_tuesday\/\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Adobe, Intel, SAP, Android emit vulnerability fixes, too Patch Tuesday\u00a0 Microsoft&#8217;s traditional Patch Tuesday saw the software giant release fixes for 50 flaws, and a reminder to apply updates as soon as possible because six of them are being exploited in the wild by miscreants.\u2026 READ MORE HERE&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[63],"tags":[],"class_list":["post-41261","post","type-post","status-publish","format-standard","hentry","category-the-register"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Extra urgency in June&#039;s Patch Tuesday: Microsoft warns six more bugs are being exploited 2026 | ThreatsHub Cybersecurity News<\/title>\n<meta name=\"description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT Threat Intelligent and Cybersecurity News.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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