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patches\u003C/a>\u003C/strong>\u003C/p>",[474,475],{"id":286,"title":287},{"id":283,"title":284},{"id":477,"title":478,"description":479,"plans":480},"MJlLPyxqTcy9ys2UaZYNKQ","Windows 10 v1909 patches","\u003Cp>Windows 10 1909 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+10\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows 10 patches\u003C/a>\u003C/strong>\u003C/p>",[481,482],{"id":283,"title":284},{"id":286,"title":287},{"id":484,"title":485,"description":486,"plans":487},"GscjCa1TQOe5p5Or7g2qyw","Windows 10 v1809 patches","\u003Cp>Windows 10 1809 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+10\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows 10 patches\u003C/a>\u003C/strong>\u003C/p>",[488,489],{"id":283,"title":284},{"id":286,"title":287},{"id":491,"title":492,"description":493,"plans":494},"OeQ8xMmJTmadIiPcKYkhvw","Windows 10 v1803 patches","\u003Cp>Windows 10 1803 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+10\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows 10 patches\u003C/a>\u003C/strong>\u003C/p>",[495,496],{"id":283,"title":284},{"id":286,"title":287},{"id":498,"title":499,"description":500,"plans":501},"Obe8z8snRYGoLT6BZyzhZw","Windows 7 post-EOS and post-ESU patches","\u003Cp>Windows 7 post-end-of-support patches, for computers without Extended Security Updates (ESU), or computers with any full year of ESU updates installed\u003C/p>",[502,503],{"id":283,"title":284},{"id":286,"title":287},"Windows Patches","DXze3dvpTu-HF132vKjSug","microsoft-windows-xp",{"alt":508,"url":509,"width":510,"height":510,"responsiveImage":511},"Windows 11 logo","https://www.datocms-assets.com/166020/1764600963-win11.png",300,{"srcSet":512,"webpSrcSet":513,"sizes":514,"src":515,"width":516,"height":516,"aspectRatio":210,"alt":508,"title":18,"bgColor":517,"base64":518},"https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&fit=crop&h=40 40w,https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&dpr=1.5&fit=crop&h=40 60w,https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&dpr=2&fit=crop&h=40 80w,https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&dpr=3&fit=crop&h=40 120w,https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&dpr=4&fit=crop&h=40 160w","https://www.datocms-assets.com/166020/1764600963-win11.png?auto=compress&crop=focalpoint&fit=crop&fm=webp&h=40 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Server 2012 R2 post-EOS patches","\u003Cp>Windows Server 2012 R2 post-end-of-support patches, for computers without Extended Security Updates (ESU), or computers with any full year of ESU updates installed\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+Server+2012+R2\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows Server 2012 R2 patches\u003C/a>\u003C/strong>\u003C/p>",[529,530],{"id":283,"title":284},{"id":286,"title":287},{"id":532,"title":533,"description":534,"plans":535},"ZaeezXKkT3KGln5CQ4NH9w","Windows Server 2012 post-EOS patches","\u003Cp>Windows Server 2012 post-end-of-support patches, for computers without Extended Security Updates (ESU), or computers with any full year of ESU updates installed\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+Server+2012\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows Server 2012 patches\u003C/a>\u003C/strong>\u003C/p>",[536,537],{"id":283,"title":284},{"id":286,"title":287},{"id":539,"title":540,"description":541,"plans":542},"RYxw9xwXR3-OWnsdr8dFEg","Windows Server 2008 R2 post-EOS and post-ESU patches","\u003Cp>Windows Server 2008 R2 post-end-of-support patches, for computers without Extended Security Updates (ESU), or computers with any full year of ESU updates installed\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Windows+Server+2008+R2\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Windows Server 2008 R2 patches\u003C/a>\u003C/strong>\u003C/p>",[543,544],{"id":283,"title":284},{"id":286,"title":287},"Windows Server Patches","J7WLPCrKS7i7B8sAyJpKWg","microsoft-windows-vista",{"alt":549,"url":550,"width":551,"height":510,"responsiveImage":552},"Windows Server 2012-2022 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Office 2019 post-EOS patches","\u003Cp>Microsoft Office 2019 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Office+2019\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Microsoft Office 2019 patches\u003C/a>\u003C/strong>\u003C/p>",[570,571],{"id":283,"title":284},{"id":286,"title":287},{"id":573,"title":574,"description":575,"plans":576},"MkFk40IJQhCcXnIO2ZDd4Q","Microsoft Office 2016 post-EOS patches","\u003Cp>Microsoft Office 2016 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Office+2016\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Microsoft Office 2016 patches\u003C/a>\u003C/strong>\u003C/p>",[577,578],{"id":283,"title":284},{"id":286,"title":287},{"id":580,"title":581,"description":582,"plans":583},"FFqWfGxfQF2q0uyjyRjVWg","Microsoft Office 2013 post-EOS patches","\u003Cp>Microsoft Office 2013 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Office+2013\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Microsoft Office 2013 patches\u003C/a>\u003C/strong>\u003C/p>",[584,585],{"id":283,"title":284},{"id":286,"title":287},{"id":587,"title":588,"description":589,"plans":590},"XFYgrsOyRpeuEXk29M4z9g","Microsoft Office 2010 post-EOS patches","\u003Cp>Microsoft Office 2010 post-end-of-support patches\u003C/p>\n\u003Cp>\u003Cstrong>\u003Ca href=\"/patches?product=Office+2010\" target=\"_blank\" rel=\"noopener\">Click to see the full list of our Microsoft Office 2010 patches\u003C/a>\u003C/strong>\u003C/p>",[591,592],{"id":283,"title":284},{"id":286,"title":287},"Microsoft Office Patches","VH2unwR4RjycDA1o_6eSFw","microsoft-windows-7",{"alt":597,"url":598,"width":510,"height":510,"responsiveImage":599},"Microsoft Office 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products patches","\u003Cp>We occasionally patch other Windows products, for instance when a critical vulnerability becomes known and the vendor does not provide an official patch in a timely manner\u003C/p>",[613],{"id":283,"title":284},"Other","BrWA-hAsQYSROgTvF-1ecA","microsoft-windows-11",{"alt":618,"url":619,"width":620,"height":621,"responsiveImage":18},"Windows 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",{"url":847,"meta":848,"type":12,"children":852},"https://securitynews.sonicwall.com/xmlpost/scripting-engine-memory-corruption-vulnerability-cve-2020-0674/",[849],{"id":850,"value":851},"target","_blank",[853],{"type":842,"marks":854,"value":855},[844],"published",{"type":842,"marks":857,"value":858},[844],", making exploitation by new malicious actors more likely.]",{"type":842,"value":860},"\n\nHi 0patch users and supporters around the globe!\n\nWith February 2020 Patch Tuesday we began our three-year journey of providing critical security micropatches for Windows 7 and Windows Server 2008 R2 to our users, who could not - or decided not to - use Microsoft's Extended Security Updates.\n\n\n",{"type":862,"level":522,"children":863},"heading",[864],{"type":842,"value":865},"Status of Windows 7 and Windows Server 2008 R2 micropatches",{"type":839,"children":867},[868,870,876,878,885,887,894],{"type":842,"value":869},"\n\nThis first Patch Tuesday brought a large number of security fixes for these platforms, and we've set up a status page for public tracking of our progress on providing associated micropatches, which you can always find at this address:\n\n",{"url":871,"meta":872,"type":12,"children":874},"https://0patch.zendesk.com/hc/en-us/articles/360011925159",[873],{"id":850,"value":851},[875],{"type":842,"value":865},{"type":842,"value":877},"\n\nAs you know, ",{"url":879,"meta":880,"type":12,"children":882},"https://0patch.zendesk.com/hc/en-us/articles/360009439780",[881],{"id":850,"value":851},[883],{"type":842,"value":884},"it is not our goal to provide micropatches for all vulnerabilities fixed by Microsoft",{"type":842,"value":886}," - instead, our goal is to ",{"url":888,"meta":889,"type":12,"children":891},"https://0patch.zendesk.com/hc/en-us/articles/360018110474",[890],{"id":850,"value":851},[892],{"type":842,"value":893},"provide micropatches for high-risk vulnerabilities",{"type":842,"value":895},": those that are likely to get exploited (e.g., because details are published), that allow for a remote attack (e.g., through visiting a malicious web page, or opening a malicious email or document). This doesn't mean we won't micropatch publicly detailed local privilege escalation issues, but they will have a lower priority.\n\n\n",{"type":862,"level":522,"children":897},[898],{"type":842,"value":899},"Improved Micropatch for CVE-2020-0674",{"type":839,"children":901},[902,904,911,913,920,922,925,927,929,931,938,940,944,946,948,950,952,954,959,961,968],{"type":842,"value":903},"\nYou will remember that after January Patch Tuesday, Microsoft issued an ",{"url":905,"meta":906,"type":12,"children":908},"https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV200001",[907],{"id":850,"value":851},[909],{"type":842,"value":910},"advisory",{"type":842,"value":912}," about a remotely exploitable vulnerability in Scripting Engine CVE-2020-0674 that was detected as being used in the wild. There was no official patch from Microsoft and their workaround had some unpleasant side effects, so ",{"url":914,"meta":915,"type":12,"children":917},"https://blog.0patch.com/2020/01/micropatching-workaround-for-cve-2020.html",[916],{"id":850,"value":851},[918],{"type":842,"value":919},"we stepped in",{"type":842,"value":921}," and created a micropatch without such side effects. Both the workaround and our micropatch did prevent functioning of legacy ",{"type":842,"marks":923,"value":924},[844],"JScript",{"type":842,"value":926}," code, so any web page still using it (and we hear from our enterprise users that ",{"type":842,"marks":928,"value":924},[844],{"type":842,"value":930}," is still very much alive in internal corporate web applications) would not work properly.\n\nAs expected, Microsoft fixed this issue with February Patch Tuesday, but not for Windows 7 and Windows Server 2008 R2 users without Extended Security Updates. In addition, the original reporters of this issue, a Chinese security company Qihoo 360, ",{"url":932,"meta":933,"type":12,"children":935},"http://blogs.360.cn/post/apt-c-06_0day.html",[934],{"id":850,"value":851},[936],{"type":842,"value":937},"published a technical article",{"type":842,"value":939}," which provided sufficient information about the vulnerability that anyone skilled in this game could easily reproduce it. The latter changed our risk assessment - before the exploitation was limited, but now anyone motivated can build an exploit and start targeting vulnerable Windows computers.\n\n",{"type":842,"marks":941,"value":943},[942],"strong","And there are at least as many vulnerable Windows computers out there as there are Windows 7 computers without Extended Security Updates.",{"type":842,"value":945},"\n\nSo we reproduced the issue and traced the root cause to ",{"type":842,"marks":947,"value":924},[844],{"type":842,"value":949}," function sort(), specifically when called using a sorting function, and its binary code implementation in function JsArrayFunctionHeapSort.  This function has changed significantly with February updates, but so have many, many others, and we know from previous analyses of jscript.dll that many of these changes are not security related. (One is impressed with how much development effort Microsoft continues to invest in this legacy scripting engine.)\n\nWhile we understood what the root cause of the issue was and knew what had to be done to fix it, we did not find a sufficiently risk-free method of doing it, at least not yet, and thus decided on a compromise: we would remove the exploitable part of sort()'s functionality, effectively causing\n\narray.sort(sortfunction)\n\nto become\n\narray.sort()\n\n\nIt was our assessment that this change should not have a significant impact on majority of web applications using ",{"type":842,"marks":951,"value":924},[844],{"type":842,"value":953},". (If any 0patch users do experience a significant impact, please contact ",{"url":955,"type":12,"children":956},"mailto:support@0patch.com",[957],{"type":842,"value":958},"support@0patch.com",{"type":842,"value":960},"!)\n\nOur primary target for this micropatch were Windows 7 and Windows Server 2008 R2 computers, for which we also revoked our initial \"workaround\" micropatch. However, we subsequently learned that February Windows Updates were causing ",{"url":962,"meta":963,"type":12,"children":965},"https://www.computerworld.com/article/3528771/with-a-fix-for-the-temporary-profile-bug-still-elusive-win10-1903-and-1909-customers-should-check-p.html",[964],{"id":850,"value":851},[966],{"type":842,"value":967},"severe problems for Windows 10 v1903/v1909 users",{"type":842,"value":969},", prompting many of them to likely delay or forgo applying of these updates. Since that would leave them vulnerable to CVE-2020-0674, we ported our micropatch to Windows 10 v1903/v1909 as well (and revoked the associated \"workaround\" micropatch).\n\n\n",{"type":862,"level":522,"children":971},[972],{"type":842,"value":973},"Online Test For 0patch Users",{"type":839,"children":975},[976,978,985],{"type":842,"value":977},"\nOnce we had micropatched this web-deliverable vulnerability, we were able to construct an online test for all our 0patch users to check whether the micropatch is getting properly applied. This is particularly important for Windows 7 and Windows Server 2008 R2 users, who ",{"url":979,"meta":980,"type":12,"children":982},"https://0patch.zendesk.com/hc/en-us/articles/360009446600",[981],{"id":850,"value":851},[983],{"type":842,"value":984},"need to have their computers fully updated",{"type":842,"value":986}," in order for our post-end-of-service micropatches to apply.\n\n\n\n\n\n",{"item":794,"type":988},"block",{"type":839,"children":990},[991],{"type":842,"value":992},"The online test page is located here:\n\n",{"type":839,"children":994},[995],{"type":842,"value":996},"https://0patch.com/poc/CVE-2020-0674/0patch_test.html\n\nTo use it, you have to visit it with Internet Explorer 11; Internet Explorer is the only browser using jscript.dll, and we only provided a micropatch for version 11 as this is the only still-supported version on Windows 7 and Server 2008.\n\nOnce you open the test page, you will see one of the following:\n\n",{"item":806,"type":988},{"type":839,"children":999},[1000],{"type":842,"value":1001},"\n\n\nThis means everything is okay; your computer is properly updated for 0patch, and 0patch has applied the micropatch for CVE-2020-0674 to your Internet Explorer, making you not-vulnerable.\n\n\n",{"item":821,"type":988},{"type":839,"children":1004},[1005,1007,1010],{"type":842,"value":1006},"\n\n\nThis message indicates that our micropatch did not get applied. You may have not applied the January 2020 rollup update on your computer, or are using Internet Explorer version other than 11. Or, you may be on Extended Security Updates, in which case this test doesn't apply to you.\n\nGo ahead, use this test and let us know (",{"url":955,"type":12,"children":1008},[1009],{"type":842,"value":958},{"type":842,"value":1011},") if our micropatch isn't getting applied.\n\n\n\n",{"type":862,"level":522,"children":1013},[1014],{"type":842,"value":1015},"What's Next?",{"type":839,"children":1017},[1018,1020,1026,1028,1035,1037,1043],{"type":842,"value":1019},"\n\nBeing that CVE-2020-0674 was the only remote code execution vulnerability with a published proof of concept, micropatching it was our priority. There are a couple of other issues in ",{"url":871,"meta":1021,"type":12,"children":1023},[1022],{"id":850,"value":851},[1024],{"type":842,"value":1025},"our status table",{"type":842,"value":1027}," that are already making us busy with either recreating a proof-of-concept or already analyzing the vulnerability, but there is one issue that stands out: the LNK vulnerability (CVE-2020-0729), which has \"massive exploitation\" written all over it. It also reportedly has a proof-of-concept successfully reproduced in the security research community, so once those details are available, we'll have to respond quickly to protect our users.\n\nCheers!\n\n",{"url":1029,"meta":1030,"type":12,"children":1032},"https://twitter.com/mkolsek",[1031],{"id":850,"value":851},[1033],{"type":842,"value":1034},"@mkolsek",{"type":842,"value":1036},"\n",{"url":699,"meta":1038,"type":12,"children":1040},[1039],{"id":850,"value":851},[1041],{"type":842,"value":1042},"@0patch",{"type":842,"value":1044},"\n\n\n\n\n\n\n",{"alt":720,"url":810,"width":811,"height":812,"responsiveImage":1046},{"srcSet":1047,"webpSrcSet":1048,"sizes":1049,"src":1050,"width":1051,"height":1052,"aspectRatio":1053,"alt":720,"title":720,"bgColor":818,"base64":819},"https://www.datocms-assets.com/166020/1755778648-0patch_test_not_vulnerable.png?auto=compress&crop=focalpoint&fit=crop&w=1440 1440w","https://www.datocms-assets.com/166020/1755778648-0patch_test_not_vulnerable.png?auto=compress&crop=focalpoint&fit=crop&fm=webp&w=1440 1440w","(max-width: 1440px) 100vw, 1440px","https://www.datocms-assets.com/166020/1755778648-0patch_test_not_vulnerable.png?auto=compress&crop=focalpoint&fit=crop&w=1440",1440,167,8.622754491017965,1780067936591]