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طريقة جديدة
(ومعروفة أيضاً) لسرقة كلمة السر
الهدف ليس هو نشر الطريقة، وإنما توعية
المستخدم وإرشاده إلى العلاج أو الوقاية .
عندما تكون
على الإنترنت قد تطالعك رسالة تحوى سكريبت جافا وبمجرد فتحها تظهر لك شاشة
تطلب منك إعادة الدخول من جديد
Re login
بإدخال إسم المستخدم وكلمة السر من جديد فتقوم سكريبت الجافا بارسال هذه
البيانات الى العنوان المذكور بداخلها . اذا تمت عملية سرقة كلمة السر الخاصة
بك .
طرطوس.كوم
<left>
This
document describes a serious security problem we
discovered
with Microsoft's Hotmail Service which allows malicious users to
easily
steal the passwords of Hotmail users.
The exploit
involves sending
e-mail
messages that contains javascript code as part of the message.
When a
Hotmail
user views the message, the embedded javascript code forces the user to
re-login to
Hotmail.
In doing
so, the victim's username, password, and ip
address is
sent to the malicious user by e-mail.
Once a
malicious user knows
the
password to the victim's Hotmail account, he can assume full control of
the
account,
including the ability to: delete, send, and read the victim's e-mail
check mail
on other mail servers that the victim has configured for
mail-checking access the victim's address book discover other passwords
sent as
confirmation of registration in old e-mails
change the password of the Hotmail
account The
security problem is easy to take advantage of.
A would-be
hacker
needs only
to
................................... .
In a
working
demonstration of this exploit, we show that even users without their own
internet
service provider (ISP) can steal an arbitrary number of Hotmail
passwords
by using a free
..... .... ... .
We believe
the "Hot"mail exploit
to be a
serious security concern for the following reasons:
1.The
malicious
code runs
as soon as e-mail message is viewed
2.The
resources required to
launch the
attack are minnimal and freely available.
3.The
malicious e-mail
can be sent
from virtually anywhere, including libraries, internet cafes, or
classroom
terminals
4.The
exploit will work with any javascript-enabled
browser,
including the Microsoft Internet Explorer and Netscape Communicator.
Because-we-can.com
has notified both Microsoft and Hotmail that a security
problem
exists.
We are
making the following detailed information about the
"Hot"Mail
exploit publicly available to speed the process of fixing the security
hole.
In general,
we believe that when the public is aware of serious
security
problems, expedient measures are taken to solve those problems.
Learn how
..
However,
when the user types in their username and
password,
the information is sent back to the malicious user.
In the
exploits
we
describe, the part of the program that does the actual "dirty-work" of
mailing the
password and username is provided by ..... as a (free) service to
all their
members.
This should
not be viewed as an oversight or problem with
them ,
since there are
...
The "Hot"Mail
exploit is just one of many
potentially
damaging javascript programs that could be embedded into mail
messages.
Since
javascript code in email messages can run as soon as the
message is
viewed, and can alter virtually any aspect of the user interface, we
urge
Hotmail to implement a javascript filter.
HOW TO
PROTECT YOURSELF FROM
"HOT"MAIL
Until
Hotmail fixes the security problem, we suggest that Hotmail
users turn
off javascript in their browsers.
Even users
familiar with our
version of
the exploit may be vulnerable to other javascript programs embedded
in Hotmail
messages.
Netscape users can turn javascript off in their
preferences
(edit / preferences / advanced / disable javascript).
Microsoft
Internet
Explorer users can turn jscript off in their preferences (view
/
internet
options / security / custom settings / scripting / disable active
scripting).
This
demonstrates how we used the "Hot"Mail exploit with minimal
resources
to steal passwords from Hotmail users.
Our goal
was to show that
using only
the items listed below, we could steal a victim's Hotmail password
and remain
anonymous.
INGREDIENTS: 1 Computer with Internet Access 1
Netscape
Mail (or equivalent e-mail program) 1 Notepad (or equivalent text
editor)
STEP 1: We
visited hotmail.com and registered for a free e-mail
account. We
did not have to enter valid contact information during the
registration process.
STEP 2:
.......
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والوقاية هى :
1- الانتباه الى هذه الحيلة أي تجاهل الرسالة
التي تطلب منك إعادة إدخال البيانات , والطريقة الصحيحة هى إعادة الدخول
للموقع إذا ما حدث إنقطاع .
2- عدم فتح الرسائل المشبوهة .
3- تعطيل
تشغيل جافا سكريبت عن طريق :
Tools
Internet options
Security
Custom settings
Scripting
Disable active scripting
طرطوس.كوم
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