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RealVNC4/WinVNC4 vulnerabilities

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RealVNC4/WinVNC4 vulnerabilities

This is a discussion on "RealVNC4/WinVNC4 vulnerabilities" within the Security discussions part of the Computer Security: Discussions section; no comments :> Code: .7.41:5900 realvnc4 ssl encryption .16.83:5900 realvnc4 passworded (free ed. win32) .16.91:5900 realvnc4 passworded (free ed. win32) .16.113:5900 realvnc4 passworded (free ed. win32) ***.16.163:5900 realvnc4 passworded (free ...

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#1 (permalink)

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19-06-05

class101 is offline

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RealVNC4/WinVNC4 vulnerabilities

no comments :>

Code:

***.7.41:5900   realvnc4 ssl encryption
***.16.83:5900   realvnc4 passworded (free ed. win32)
***.16.91:5900   realvnc4 passworded (free ed. win32)
***.16.113:5900   realvnc4 passworded (free ed. win32)
***.16.163:5900   realvnc4 passworded (free ed. x86/SPARC/HPUX)
***.16.180:5900   realvnc4 passworded (free ed. x86/SPARC/HPUX)
***.16.202:5900   RealVNC4 NULL Session (free ed. x86/SPARC/HPUX)
***.16.237:5900   realvnc4 passworded (free ed. x86/SPARC/HPUX)
***.22.217:5900   realvnc4 passworded (free ed. x86/SPARC/HPUX)
***.29.91:5900   realvnc4 passworded (free ed. x86/SPARC/HPUX)
***.29.92:5900   RealVNC4 NULL Session (perso/enterp ed. win32 encryption:OFF)
***.29.93:5900   realvnc4 passworded (free ed. x86/SPARC/HPUX)
***.29.157:5900   realvnc4 passworded (perso/enterp ed. win32 encryption:OFF)
***.29.201:5900   realvnc4 passworded (free ed. x86/SPARC/HPUX)
***.29.234:5900   realvnc4 passworded (free ed. win32)
***.35.45:5900   realvnc4 passworded (perso/enterp ed. win32 encryption:ON)
***.40.192:5900   RealVNC4 NULL Session (perso/enterp ed. win32 encryption:ON)

thx you d00pje for notifying this issue, winvnc in the old time was disallowing null sessions, and it looks like gone now ...

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#2 (permalink)

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19-06-05

szon

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will you add it to new dfind ?

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haha, np class

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Hard-Impact Hard-Impact is offline

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Nice find Class, I hope you are going to put that in your next release of DFind

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20-06-05

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Quote:

Originally Posted by Hard-Impact

Nice find Class, I hope you are going to put that in your next release of DFind

of course

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RealVNC wont remove this no auth option because its useful for some users maybe but how safe o_0 ?

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I have tried some others VNC derived from the realvnc sources:

TightVNC => you can set null so but this is a way better, if you want to use a null password, you should untick another checkbox, much secured+ a warning msg

Ultr@VNC => you can't setup a null password else all incoming connectin are rejected + a warning msg.

TridiaVNC => you can set null so but this is a way better, if you want to use a null password, you should untick another checkbox, much secured, no warning msg.

RealVNC => you can set a null password cliking one checkbox, no warning msg.

where is the intruder :>

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Quote:

Originally Posted by class101

Quote:

Originally Posted by "Hard-Impact":401a4

Nice find Class, I hope you are going to put that in your next release of DFind

of course

w00t, how nice of you

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22-06-05

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w0w really nice find there

nice coding also, wonder when you'll have the time to plant it into dfind

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24-06-05

hx

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:D GOLDEN

haha ... .thats GOLD !!

God addon, and great trackwork/research on this ;> , was quite a VERY nice dFind.

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