A downgrade attack or version rollback attack is a form of cryptographic attack on a computer system or communications protocol that makes it abandon a high-quality mode of operation (e.g. an encrypted connection) in favor of an older, lower-quality mode of operation (e.g. cleartext) that is typically provided for backward compatibility with older systems. An example of such a flaw was found in OpenSSL that allowed the attacker to negotiate the use of a lower version of TLS between the client and server. This is one of the most common types of downgrade attacks. Another example is intercepting web traffic and redirecting the user from the secure, HTTPS version of a website to an unencrypted HTTP version.

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  1. W

    How to Downgrade iOS 7 Beta to iOS 6

    Before Apple officially releases its iOS 7, some iPhone users have downloaded iOS 7 beta and update their device to the beta version to have a try. But problems occur later, like system instability, app auto-restart, stuck in recovery mode, etc. Well. In this situation, you want to downgrade...
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    How to Downgrade iOS 7 Beta to iOS 6

    Before Apple officially releases its iOS 7, some iPhone users have downloaded iOS 7 beta and update their device to the beta version to have a try. But problems occur later, like system instability, app auto-restart, stuck in recovery mode, etc. Well. In this situation, you want to downgrade...
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    How to downgrade GT-i9500 4.4.2 to 4.2.2 ??

    Samsung i9500 ver- 4.4.2 ---- 4.2.2 downgrade possible ?
  4. P

    possible to downgrade ios7 to ios6 iphone4 ?

    Its possible to downgrade ios7 to ios6 iphone4 ?
  5. F

    iphone 4 how to downgrade with 6.1.3 ??

    iphone 4 downgrade 6.1.3 help me
  6. M

    How To Downgrade iOS 6 to iOS 5.1.1 With SHSH

    How To Downgrade iOS 6 to iOS 5.1.1 On A4 devices Step 1: Put Your device into ]DFU mode (or use the Steps below) Hold down power button and home button both at the same time for 10 seconds After the 10 seconds release the power button and still pressing on the home button for another 10...
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    how to downgrade iphone 4s 6.0 to 5.1.1 ?

    how to downgrade iphone 4s 6.0 to 5.1.1 ?
  8. K

    How To Downgrade iOS 6 to iOS 5.1.1 With SHSH

    How To Downgrade iOS 6 to iOS 5.1.1 On A4 devices Step 1: Put Your device into ]DFU mode (or use the Steps below) Hold down power button and home button both at the same time for 10 seconds After the 10 seconds release the power button and still pressing on the home button for another 10...
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    Infinity-Box Nokia [BEST] v1.57 released: Added downgrade check in DEAD mode and More

    BEST v1.57 - USB flashing improved - Added downgrade check in DEAD mode flashing for : - RAPIDO ADL - RAPIDO COLD - XG223 - RAPUv11 , RAPUv21 - RAP3gV4 , BRCM This option check FW version inside phone and inside flash files - After Flash...
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    How TO Downgrade Htc Phones (Guides)

    downgrade HTC Hero ROM using GoldCard method This guide will show you how to downgrade HTC Hero ROM using "GoldCard" method. 1. Set Up ADB and USB Drivers Follow this tutorial to set up ADB/USB Drivers. If you already have this done, skip this step. 2. Create "GoldCard" from MicroSD Card(You...
  11. D

    How to downgrade nokia 2700c?

    How to downgrade nokia 2700c via hwk/mxky? If i downgrade the phone then i have lose anything - like rpl/sl data etc?
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    iPhone 3g and 3gs downgrade on 4.1 another way tested by @zimbahar

    iPhone 3g and 3gs downgrade on 4.1 another way tested by @zimbahar if any one done other way you can post here with Gide. another way you can downgrade. here one way downgrade . here step by step . open sn0wbreeze-v2.1 click OK click close credits click next click browse then select...
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    Infinity-Box Nokia [BEST] v1.40 Added RAPIDO Safe Erase, downgrade now with USB

    Infinity-Box Nokia [BEST] v1.40 released ! - USB flashing improved Maemo5/Maemo6 Flash engine revised Downgrade check for Maemo improved - Added RAPIDO Safe Erase Allow Downgrade , Security rebuild and other via USB cable Only FBUS no need more, if you want downgrade phone -...
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    Downgrade iOS 5.0.1 To 4.3.3, 4.3.5 [Easy Guide]

    Phone Discussion Downgrade iOS 5.0.1 To 4.3.3, 4.3.5 [Easy Guide] iOS 5.0.1 has been released - and, chances are, you may be looking to downgrade to an earlier version of iOS because of one reason or another.Today, we’re going to guide you on how to do exactly that so you can go back to...
  15. Farigu

    What is downgrade in samsung

    EXAMPLE ----------------------- S8530JPKC1 This file released in 2011 march K is 2011 C is MARCH Version is 1 ----------------------- if flash phone with S8530JPIC5 Phone is downgrade
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    Jailbreak news: Unsafe Siri iPhone 4 port debuts on Cydia, iOS 5 downgrade via iFaith

    We know Apple previously tested Siri on iPhone 4 and older devices but hasn’t enabled the voice recognition software to work on customers’ iOS devices released before the iPhone 4S. Meanwhile however, the hacking community cracked Apple’s digital secretary to work on jailbroken devices...
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    Iphone 3gs 5.0.1 downgrade to 4.1 done inside plus update baseband!

    share ko sa inyo,.3gs 5.0.1 downgrade to 4.1 done,. this MC model but safe po sya i downgrade kasi year 2009 at week 32 po..kaya no need to worry mga unlockers, d kasi factory unlock kaya need talaga i update ang baseband nya pra magkasignal. ito po ang version nya.. check the image...
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    Iphone 3gs 5.0 Downgrade to 4.1 And Unlock done

    Iphone 3gs 5.0 Downgrade to 4.1 And Unlock done ( Old Bootrom) Procedure: 1: Open iREB 4.0.x-4.1-RC2 2: Click 3gs (Sundan lang ang instruction para mg DFU Mode ) 3: Open Itunes 4: Hold shift 5: Add 4.1 Firmware 6: Click Restore done but error 1015...
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    Iphone 3gs 5.0 Downgrade to 4.1 And Unlock done

    Iphone 3gs 5.0 Downgrade to 4.1 And Unlock done ( Old Bootrom) Procedure: 1: Open iREB 4.0.x-4.1-RC2 2: Click 3gs (Sundan lang ang instruction para mg DFU Mode ) 3: Open Itunes 4: Hold shift 5: Add 4.1 Firmware 6: Click Restore done but error 1015...
  20. Lawra

    Nokia 5130c downgrade successfully done(see video)

    5130c downgrade successfully done.rar - 4shared.com - online file sharing and storage - download before downgrade V 07.97 after downgrade V 07.95 Reading Phone Info.... Connected phone - Nokia 5130c-2 Software ver : V 07.97 13-09-10 RM-495 (c) Nokia IMEI : 356919035606707 Ape Ver : APE Var ...
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