While the new EternalBlue exploit, officially named Microsoft MS17-010, only affects Windows operating systems, anything that uses the Server Message Block Version 1 (SMBv1) file sharing protocol is technically vulnerable to ransomware and other cyberattacks.
What vulnerabilities are on Windows 7?
When Windows 7 was released, it was hailed as “the most user-friendly Windows ever”—which was true at the time, but its predecessor, Windows Vista, didn’t set the bar high when it came to security. However, the updated operating system comes with literally hundreds of security enhancements and additions that cater to the needs of the more consciousI’m talking about keeping home and business users safe with features like AppLocker, BitLocker Drive Encryption technology, and more. Despite these improvements, there are many serious security vulnerabilities in Windows – here is a list of the top 10 and how to fix them.
MS17-010 Windows EternalBlue SMB Remote Kernel Pool Corruption
This module is just a port of the ETERNALBLUE exploit from the Equation group, part of it. FuzzBunch toolkit published by Shadow Brokers. Srv!SrvOs2FeaToNt has a buffer overflow operation. The size calculated probably in Srv!SrvOs2FeaListSizeToNt, mathematically with an error the best place has DWORD is directly subtracted from WORD. The kernel pool is surely prepared in such a way that it overflows as you know, designed to rewrite the SMBv1 buffer. The real RIP diversion comes later removed in srvnet!SrvNetWskReceiveComplete. This exploit, like the original one, should not work 100% over time and should be run continuously until triggered. It looks like the pool is ribbed and need a periodecool before the shell starts to flow again. By default, the module tries to establish an anonymous connection to ensure this. Use. If the user provides credentials in the SMBUser, SMBPass, and SMBDomain parameters, those credentials are used. these instead. On any of these systems, the module can cause system instability and crashes such as BSOD or reboot.
Exploit Links
Secondly, MS11-011 is now hardcoded and will be ignored in future versions of Windows. This is mainly due to the fact that the database was not new at the time the web newsletter was updated. V1.2 (March 18, 2011): Windows 7 for 32-bit systems SP1, Window 8 for x64 systems SP1, Windows Server 2008 R2 for systems SP1 x64, and Windows Server 2008 with R2 added for Itanium. Service Pack 1 systems running unaffected software. This is just information and improvement. There were no changes to some security update files or reasonable detection.” https://technet.microsoft.com/en-us/library/security/ms11-011.aspx
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