Hallo Leute,
wir haben momentan einen Schannel-Fehler im Ereignislog, der unser Log explodieren lässt, da er mehrfach in der Sekunde auftritt.
Server:
Windows Server 2008 R2 (Updates aktuell)
Exchange 2010 installiert (Updates aktuell)
Protokollname: System
Quelle: Schannel
Datum: 12.07.2019 09:26:20
Ereignis-ID: 36887
Aufgabenkategorie:Keine
Ebene: Fehler
Schlüsselwörter:
Benutzer: SYSTEM
Computer: ##########
Beschreibung:
Es wurde eine schwerwiegende Warnung empfangen: 46.
Ereignis-XML:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"><System><Provider Name="Schannel" Guid="{1F678132-5938-4686-9FDC-C8FF68F15C85}" /><EventID>36887</EventID><Version>0</Version><Level>2</Level><Task>0</Task><Opcode>0</Opcode><Keywords>0x8000000000000000</Keywords><TimeCreated SystemTime="2019-07-12T07:26:20.886265300Z" /><EventRecordID>20630590</EventRecordID><Correlation /><Execution ProcessID="704" ThreadID="4524" /><Channel>System</Channel><Computer>##########</Computer><Security UserID="S-1-5-18" /></System><EventData><Data Name="AlertDesc">46</Data></EventData></Event>
Der Prozess ist lsass.exe und hier habe ich gleich einen Auszug aus dem procmon:
08:20:14,2880004 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\8F43288AD272F3103B6FB1428485EA3014C0BCFE\Blob BUFFER OVERFLOW Length: 144
08:20:14,2880111 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\8F43288AD272F3103B6FB1428485EA3014C0BCFE\Blob BUFFER OVERFLOW Length: 144
08:20:14,2880209 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\8F43288AD272F3103B6FB1428485EA3014C0BCFE\Blob SUCCESS Type: REG_BINARY, Length: 1.833, Data: 59 00 00 00 01 00 00 00 16 00 00 00 52 00 53 00
08:20:14,2880345 lsass.exe 704 RegCloseKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\8F43288AD272F3103B6FB1428485EA3014C0BCFE SUCCESS
08:20:14,2880535 lsass.exe 704 RegEnumKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Index: 13, Name: 9617094A1CFB59AE7C1F7DFDB6739E4E7C40508F
08:20:14,2880656 lsass.exe 704 RegQueryKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Query: HandleTags, HandleTags: 0x0
08:20:14,2880914 lsass.exe 704 RegOpenKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\9617094A1CFB59AE7C1F7DFDB6739E4E7C40508F SUCCESS Desired Access: Read
08:20:14,2881144 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\9617094A1CFB59AE7C1F7DFDB6739E4E7C40508F\Blob BUFFER OVERFLOW Length: 144
08:20:14,2881373 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\9617094A1CFB59AE7C1F7DFDB6739E4E7C40508F\Blob BUFFER OVERFLOW Length: 144
08:20:14,2881486 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\9617094A1CFB59AE7C1F7DFDB6739E4E7C40508F\Blob SUCCESS Type: REG_BINARY, Length: 1.286, Data: 19 00 00 00 01 00 00 00 10 00 00 00 54 78 18 7B
08:20:14,2881741 lsass.exe 704 RegCloseKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\9617094A1CFB59AE7C1F7DFDB6739E4E7C40508F SUCCESS
08:20:14,2882050 lsass.exe 704 RegEnumKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Index: 14, Name: 98ED99A67886D020C564923B7DF25E9AC019DF26
08:20:14,2882189 lsass.exe 704 RegQueryKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Query: HandleTags, HandleTags: 0x0
08:20:14,2882309 lsass.exe 704 RegOpenKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\98ED99A67886D020C564923B7DF25E9AC019DF26 SUCCESS Desired Access: Read
08:20:14,2882451 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\98ED99A67886D020C564923B7DF25E9AC019DF26\Blob BUFFER OVERFLOW Length: 144
08:20:14,2882584 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\98ED99A67886D020C564923B7DF25E9AC019DF26\Blob BUFFER OVERFLOW Length: 144
08:20:14,2882685 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\98ED99A67886D020C564923B7DF25E9AC019DF26\Blob SUCCESS Type: REG_BINARY, Length: 1.401, Data: 19 00 00 00 01 00 00 00 10 00 00 00 21 23 A9 CE
08:20:14,2882804 lsass.exe 704 RegCloseKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\98ED99A67886D020C564923B7DF25E9AC019DF26 SUCCESS
08:20:14,2883009 lsass.exe 704 RegEnumKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Index: 15, Name: A1DC024FC8B2A76745D4661F663B8741C3D35313
08:20:14,2883120 lsass.exe 704 RegQueryKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Query: HandleTags, HandleTags: 0x0
08:20:14,2883264 lsass.exe 704 RegOpenKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A1DC024FC8B2A76745D4661F663B8741C3D35313 SUCCESS Desired Access: Read
08:20:14,2883390 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A1DC024FC8B2A76745D4661F663B8741C3D35313\Blob BUFFER OVERFLOW Length: 144
08:20:14,2883520 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A1DC024FC8B2A76745D4661F663B8741C3D35313\Blob BUFFER OVERFLOW Length: 144
08:20:14,2883622 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A1DC024FC8B2A76745D4661F663B8741C3D35313\Blob SUCCESS Type: REG_BINARY, Length: 1.321, Data: 19 00 00 00 01 00 00 00 10 00 00 00 FC E8 9E 67
08:20:14,2883762 lsass.exe 704 RegCloseKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A1DC024FC8B2A76745D4661F663B8741C3D35313 SUCCESS
08:20:14,2883942 lsass.exe 704 RegEnumKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Index: 16, Name: A43489159A520F0D93D032CCAF37E7FE20A8B419
08:20:14,2884054 lsass.exe 704 RegQueryKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Query: HandleTags, HandleTags: 0x0
08:20:14,2884173 lsass.exe 704 RegOpenKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A43489159A520F0D93D032CCAF37E7FE20A8B419 SUCCESS Desired Access: Read
08:20:14,2884325 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A43489159A520F0D93D032CCAF37E7FE20A8B419\Blob BUFFER OVERFLOW Length: 144
08:20:14,2884453 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A43489159A520F0D93D032CCAF37E7FE20A8B419\Blob BUFFER OVERFLOW Length: 144
08:20:14,2884578 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A43489159A520F0D93D032CCAF37E7FE20A8B419\Blob SUCCESS Type: REG_BINARY, Length: 1.312, Data: 59 00 00 00 01 00 00 00 10 00 00 00 52 00 53 00
08:20:14,2884806 lsass.exe 704 RegCloseKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\A43489159A520F0D93D032CCAF37E7FE20A8B419 SUCCESS
08:20:14,2885102 lsass.exe 704 RegEnumKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Index: 17, Name: BE36A4562FB2EE05DBB3D32323ADF445084ED656
08:20:14,2885229 lsass.exe 704 RegQueryKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates SUCCESS Query: HandleTags, HandleTags: 0x0
08:20:14,2885361 lsass.exe 704 RegOpenKey HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\BE36A4562FB2EE05DBB3D32323ADF445084ED656 SUCCESS Desired Access: Read
08:20:14,2885481 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\BE36A4562FB2EE05DBB3D32323ADF445084ED656\Blob BUFFER OVERFLOW Length: 144
08:20:14,2885605 lsass.exe 704 RegQueryValue HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\BE36A4562FB2EE05DBB3D32323ADF445084ED656\Blob BUFFER OVERFLOW Length: 144
Ich vermute, dass dieser Buffer Overflow den Fehler verursacht, bin mir aber auch nicht sicher.
Die Hardwareauslastung ist nicht höher als sonst.
Ich freue mich auf eure Tipps.
Grüße Turbomaik