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Flaws in Apple Productivity Apps Expose Users to Attacks

21/10/2015 by

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Updates released last week by Apple for its productivity apps address a series of vulnerabilities that can be exploited for denial-of-service (DoS) attacks, arbitrary code execution, and user information leakage.

With the release of Keynote 6.6, Pages 5.6, Numbers 3.6, and iWork for iOS 2.6, Apple resolved multiple input validation issues related to how maliciously crafted documents are parsed. The vulnerabilities were reported to the tech giant by Bruno Morisson of INTEGRITY S.A (CVE-2015-3784), and researchers Behrouz Sadeghipour and Patrik Fehrenbach (CVE-2015-7032).

Sadeghipour and Fehrenbach, who earlier this year reported finding a serious email spoofing flaw in the Google Apps Admin console, identified a vulnerability that can be exploited using a specially crafted document that contains malicious XML data.

Exploitation of the vulnerability, reported to Apple on July 23, can result in user information getting compromised via what is known as an XML External Entity (XXE) attack, Sadeghipour told SecurityWeek on Wednesday.

The researcher pointed to OWASP’s definition of such attacks, which says: “An XML External Entity attack is a type of attack against an application that parses XML input. This attack occurs when XML input containing a reference to an external entity is processed by a weakly configured XML parser. This attack may lead to the disclosure of confidential data, denial of service, port scanning from the perspective of the machine where the parser is located, and other system impacts.”

According to the expert, an attacker can exploit the vulnerability by sending a specially crafted Pages, Keynote, or Numbers file to the targeted user. Once the document is opened, the malicious XML data it contains is executed and it reaches an external XML file located on a host controlled by the attacker.

This article has been extracted from http://www.securityweek.com, please click on this link to read the article in full http://www.securityweek.com/flaws-apple-productivity-apps-expose-users-attacks

Montash is a multi-award winning global technology recruitment business. Specialising in permanent and contract positions across mid-senior appointments across a wide range of industry sectors and IT functions, including:

ERP Recruitment, BI & Data Recruitment, Information Security Recruitment, Enterprise Architecture & Strategy Recruitment, Energy Technology Recruitment, Demand IT and Business Engagement Recruitment, Digital and E-commerce Recruitment, Leadership Talent, Infrastructure and Service Delivery Recruitment, Project and Programme Delivery Recruitment.

Montash is headquartered in Old Street, London, in the heart of the technology hub. Montash has completed assignments in over 30 countries and has appointed technical professionals from board level to senior and mid-management in permanent and contract roles.

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