Browse Definitions :
Definition

POODLE attack

A POODLE attack is an exploit that takes advantage of the way some browsers deal with encryption. POODLE (Padding Oracle On Downgraded Legacy Encryption) is the name of the vulnerability that enables the exploit.

POODLE can be used to target browser-based communication that relies on the Secure Sockets Layer (SSL) 3.0 protocol for encryption and authentication. The Transport Layer Security (TLS) protocol has largely replaced SSL for secure communication on the Internet, but many browsers will revert to SSL 3.0 when a TLS connection is unavailable. An attacker who wants to exploit POODLE takes advantage of this by inserting himself into the communication session and forcing the browser to use SSL 3.0.

The attacker is then free to a exploit design flaw in SSL 3.0 that allows the padding data at the end of a block cipher to be changed so that the encryption cipher become less secure each time it is passed. To prevent a POODLE attack that forces a browser to degrade to SSL 3.0, administrators should check to see that their server software supports the latest version of TLS and is configured properly.

Google researchers Bodo Moller, Thai Duong and Krzysztof Kotowicz discovered (and named) the POODLE vulnerability and warned the IT community that the only way to prevent POODLE attacks is to stop using SSL 3.0. Mozilla and Microsoft have responded by creating ways for end users to disable SSL 3.0 manually in Firefox and Internet Explorer (IE).

Apple, Google, Mozilla and Microsoft have all announced plans to stop supporting SSL 3.0 in the near future.

This was last updated in October 2014

Continue Reading About POODLE attack

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

SearchSecurity

  • Malwarebytes software

    Malwarebytes is a cross-platform anti-malware program that detects and removes malware and other rogue software.

  • Transport Layer Security (TLS)

    Transport Layer Security (TLS) is a protocol that provides authentication, privacy, and data integrity between two communicating ...

  • van Eck phreaking

    Van Eck phreaking is a form of electronic eavesdropping that reverse engineers the electromagnetic fields (EM fields) produced by...

SearchHealthIT

SearchDisasterRecovery

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

  • business continuity software

    Business continuity software is an application or suite designed to make business continuity planning/business continuity ...

  • business continuity policy

    Business continuity policy is the set of standards and guidelines an organization enforces to ensure resilience and proper risk ...

SearchStorage

  • solid-state storage

    Solid-state storage (SSS) is a type of computer storage media made from silicon microchips. SSS stores data electronically ...

  • persistent storage

    Persistent storage is any data storage device that retains data after power to that device is shut off. It is also sometimes ...

  • computational storage

    Computational storage is an information technology (IT) architecture in which data is processed at the storage device level to ...

Close