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ESB-2014.1615 - [Apple iOS] iOS: Multiple vulnerabilities

Date: 18 September 2014
References: ESB-2013.1307  ESB-2013.1503  ESB-2013.1802  ASB-2014.0023  ESB-2014.0313  ESB-2014.1059  ESB-2014.1381  ESB-2014.1616  ESB-2014.1617  ESB-2014.1618  
ESB-2014.1877  ESB-2014.1880  ESB-2015.0200  ESB-2015.0917  

Click here for printable version
Click here for PGP verifiable version
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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.1615
                                   iOS 8
                             18 September 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:          iOS
Publisher:        Apple
Operating System: Apple iOS
Impact/Access:    Root Compromise                 -- Remote with User Interaction
                  Access Privileged Data          -- Remote/Unauthenticated      
                  Execute Arbitrary Code/Commands -- Remote with User Interaction
                  Increased Privileges            -- Remote with User Interaction
                  Modify Arbitrary Files          -- Existing Account            
                  Denial of Service               -- Remote/Unauthenticated      
                  Provide Misleading Information  -- Remote/Unauthenticated      
                  Reduced Security                -- Remote/Unauthenticated      
                  Access Confidential Data        -- Remote with User Interaction
                  Unauthorised Access             -- Console/Physical            
Resolution:       Patch/Upgrade
CVE Names:        CVE-2014-4423 CVE-2014-4422 CVE-2014-4421
                  CVE-2014-4420 CVE-2014-4419 CVE-2014-4418
                  CVE-2014-4415 CVE-2014-4414 CVE-2014-4413
                  CVE-2014-4412 CVE-2014-4411 CVE-2014-4410
                  CVE-2014-4409 CVE-2014-4408 CVE-2014-4407
                  CVE-2014-4405 CVE-2014-4404 CVE-2014-4389
                  CVE-2014-4388 CVE-2014-4386 CVE-2014-4384
                  CVE-2014-4383 CVE-2014-4381 CVE-2014-4380
                  CVE-2014-4379 CVE-2014-4378 CVE-2014-4377
                  CVE-2014-4375 CVE-2014-4374 CVE-2014-4373
                  CVE-2014-4372 CVE-2014-4371 CVE-2014-4369
                  CVE-2014-4368 CVE-2014-4367 CVE-2014-4366
                  CVE-2014-4364 CVE-2014-4363 CVE-2014-4362
                  CVE-2014-4361 CVE-2014-4357 CVE-2014-4356
                  CVE-2014-4354 CVE-2014-4353 CVE-2014-4352
                  CVE-2014-1389 CVE-2014-1388 CVE-2014-1387
                  CVE-2014-1385 CVE-2014-1384 CVE-2014-1360
                  CVE-2014-1348 CVE-2013-6835 CVE-2013-6663
                  CVE-2013-5227 CVE-2011-2391 

Reference:        ASB-2014.0023
                  ESB-2014.1381
                  ESB-2014.1059
                  ESB-2014.0313
                  ESB-2013.1802
                  ESB-2013.1503
                  ESB-2013.1307

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APPLE-SA-2014-09-17-1 iOS 8

iOS 8 is now available and addresses the following:

802.1X
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  An attacker can obtain WiFi credentials
Description:  An attacker could have impersonated a WiFi access
point, offered to authenticate with LEAP, broken the MS-CHAPv1 hash,
and used the derived credentials to authenticate to the intended
access point even if that access point supported stronger
authentication methods. This issue was addressed by disabling LEAP by
default.
CVE-ID
CVE-2014-4364 : Pieter Robyns, Bram Bonne, Peter Quax, and Wim
Lamotte of Universiteit Hasselt

Accounts
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to identify the Apple ID
of the user
Description:  An issue existed in the access control logic for
accounts. A sandboxed application could get information about the
currently-active iCloud account, including the name of the account.
This issue was addressed by restricting access to certain account
types from unauthorized applications.
CVE-ID
CVE-2014-4423 : Adam Weaver

Certificate Trust Policy
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Update to the certificate trust policy
Description:  The certificate trust policy was updated. The complete
list of certificates may be viewed at
http://support.apple.com/kb/HT5012.

Accessibility
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  The device may not lock the screen when using AssistiveTouch
Description:  A logic issue existed in AssistiveTouch's handling of
events, which resulted in the screen not locking. This issue was
addressed through improved handling of the lock timer.
CVE-ID
CVE-2014-4368 : Hendrik Bettermann

Accounts Framework
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  An attacker with access to an iOS device may access
sensitive user information from logs
Description:  Sensitive user information was logged. This issue was
addressed by logging less information.
CVE-ID
CVE-2014-4357 : Heli Myllykoski of OP-Pohjola Group

Address Book
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A person with physical access to an iOS device may read the
address book
Description:  The address book was encrypted with a key protected
only by the hardware UID. This issue was addressed by encrypting the
address book with a key protected by the hardware UID and the user's
passcode.
CVE-ID
CVE-2014-4352 : Jonathan Zdziarski

App Installation
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A local attacker may be able to escalate privileges and
install unverified applications
Description:  A race condition existed in App Installation. An
attacker with the capability of writing to /tmp may have been able to
install an unverified app. This issue was addressed by staging files
for installation in another directory.
CVE-ID
CVE-2014-4386 : evad3rs

App Installation
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A local attacker may be able to escalate privileges and
install unverified applications
Description:  A path traversal issue existed in App Installation. A
local attacker could have retargeted code signature validation to a
bundle different from the one being installed and cause installation
of an unverified app. This issue was addressed by detecting and
preventing path traversal when determining which code signature to
verify.
CVE-ID
CVE-2014-4384 : evad3rs

Assets
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  An attacker with a privileged network position may be able
to cause an iOS device to think that it is up to date even when it is
not
Description:  A validation issue existed in the handling of update
check responses. Spoofed dates from Last-Modified response headers
set to future dates were used for If-Modified-Since checks in
subsequent update requests. This issue was addressed by validation of
the Last-Modified header.
CVE-ID
CVE-2014-4383 : Raul Siles of DinoSec

Bluetooth
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Bluetooth is unexpectedly enabled by default after upgrading
iOS
Description:  Bluetooth was enabled automatically after upgrading
iOS. This was addressed by only turning on Bluetooth for major or
minor version updates.
CVE-ID
CVE-2014-4354 : Maneet Singh, Sean Bluestein

CoreGraphics
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Opening a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution
Description:  An integer overflow existed in the handling of PDF
files. This issue was addressed through improved bounds checking.
CVE-ID
CVE-2014-4377 : Felipe Andres Manzano of Binamuse VRT working with
the iSIGHT Partners GVP Program

CoreGraphics
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Opening a maliciously crafted PDF file may lead to an
unexpected application termination or an information disclosure
Description:  An out of bounds memory read existed in the handling of
PDF files. This issue was addressed through improved bounds checking.
CVE-ID
CVE-2014-4378 : Felipe Andres Manzano of Binamuse VRT working with
the iSIGHT Partners GVP Program

Data Detectors
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Tapping on a FaceTime link in Mail would trigger a FaceTime
audio call without prompting
Description:  Mail did not consult the user before launching
facetime-audio:// URLs. This issue was addressed with the addition of
a confirmation prompt.
CVE-ID
CVE-2013-6835 : Guillaume Ross

Foundation
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  An application using NSXMLParser may be misused to disclose
information
Description:  An XML External Entity issue existed in NSXMLParser's
handling of XML. This issue was addressed by not loading external
entities across origins.
CVE-ID
CVE-2014-4374 : George Gal of VSR (http://www.vsecurity.com/)

Home & Lock Screen
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A background app can determine which app is frontmost
Description:  The private API for determining the frontmost app did
not have sufficient access control. This issue was addressed through
additional access control.
CVE-ID
CVE-2014-4361 : Andreas Kurtz of NESO Security Labs and Markus
TroBbach of Heilbronn University

iMessage
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Attachments may persist after the parent iMessage or MMS is
deleted
Description:  A race condition existed in how attachments were
deleted. This issue was addressed by conducting additional checks on
whether an attachment has been deleted.
CVE-ID
CVE-2014-4353 : Silviu Schiau

IOAcceleratorFamily
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  An application may cause an unexpected system termination
Description:  A null pointer dereference existed in the handling of
IOAcceleratorFamily API arguments. This issue was addressed through
improved validation of IOAcceleratorFamily API arguments.
CVE-ID
CVE-2014-4369 : Catherine aka winocm

IOAcceleratorFamily
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  The device may unexpectedly restart
Description:  A NULL pointer dereference was present in the
IntelAccelerator driver. The issue was addressed by improved error
handling.
CVE-ID
CVE-2014-4373 : cunzhang from Adlab of Venustech

IOHIDFamily
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to read kernel pointers,
which can be used to bypass kernel address space layout randomization
Description:  An out-of-bounds read issue existed in the handling of
an IOHIDFamily function. This issue was addressed through improved
bounds checking.
CVE-ID
CVE-2014-4379 : Ian Beer of Google Project Zero

IOHIDFamily
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to execute arbitrary
code with system privileges
Description:  A heap buffer overflow existed in IOHIDFamily's
handling of key-mapping properties. This issue was addressed through
improved bounds checking.
CVE-ID
CVE-2014-4404 : Ian Beer of Google Project Zero

IOHIDFamily
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to execute arbitrary
code with system privileges
Description:  A null pointer dereference existed in IOHIDFamily's
handling of key-mapping properties. This issue was addressed through
improved validation of IOHIDFamily key-mapping properties.
CVE-ID
CVE-2014-4405 : Ian Beer of Google Project Zero

IOHIDFamily
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to execute arbitrary
code with kernel privileges
Description:  An out-of-bounds write issue existed in the IOHIDFamily
kernel extension. This issue was addressed through improved bounds
checking.
CVE-ID
CVE-2014-4380 : cunzhang from Adlab of Venustech

IOKit
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to read uninitialized
data from kernel memory
Description:  An uninitialized memory access issue existed in the
handling of IOKit functions. This issue was addressed through
improved memory initialization
CVE-ID
CVE-2014-4407 : @PanguTeam

IOKit
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to execute arbitrary
code with system privileges
Description:  A validation issue existed in the handling of certain
metadata fields of IODataQueue objects. This issue was addressed
through improved validation of metadata.
CVE-ID
CVE-2014-4418 : Ian Beer of Google Project Zero

IOKit
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to execute arbitrary
code with system privileges
Description:  A validation issue existed in the handling of certain
metadata fields of IODataQueue objects. This issue was addressed
through improved validation of metadata.
CVE-ID
CVE-2014-4388 : @PanguTeam

IOKit
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to execute arbitrary
code with system privileges
Description:  An integer overflow existed in the handling of IOKit
functions. This issue was addressed through improved validation of
IOKit API arguments.
CVE-ID
CVE-2014-4389 : Ian Beer of Google Project Zero

Kernel
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A local user may be able to determine kernel memory layout
Description:  Multiple uninitialized memory issues existed in the
network statistics interface, which led to the disclosure of kernel
memory content. This issue was addressed through additional memory
initialization.
CVE-ID
CVE-2014-4371 : Fermin J. Serna of the Google Security Team
CVE-2014-4419 : Fermin J. Serna of the Google Security Team
CVE-2014-4420 : Fermin J. Serna of the Google Security Team
CVE-2014-4421 : Fermin J. Serna of the Google Security Team

Kernel
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A person with a privileged network position may cause a
denial of service
Description:  A race condition issue existed in the handling of IPv6
packets. This issue was addressed through improved lock state
checking.
CVE-ID
CVE-2011-2391 : Marc Heuse

Kernel
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A local user may be able to cause an unexpected system
termination or arbitrary code execution in the kernel
Description:  A double free issue existed in the handling of Mach
ports. This issue was addressed through improved validation of Mach
ports.
CVE-ID
CVE-2014-4375 : an anonymous researcher

Kernel
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A local user may be able to cause an unexpected system
termination or arbitrary code execution in the kernel
Description:  An out-of-bounds read issue existed in rt_setgate. This
may lead to memory disclosure or memory corruption. This issue was
addressed through improved bounds checking.
CVE-ID
CVE-2014-4408

Kernel
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Some kernel hardening measures may be bypassed
Description:  The random number generator used for kernel hardening
measures early in the boot process was not cryptographically secure.
Some of its output was inferable from user space, allowing bypass of
the hardening measures. This issue was addressed by using a
cryptographically secure algorithm.
CVE-ID
CVE-2014-4422 : Tarjei Mandt of Azimuth Security

Libnotify
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious application may be able to execute arbitrary
code with root privileges
Description:  An out-of-bounds write issue existed in Libnotify. This
issue was addressed through improved bounds checking.
CVE-ID
CVE-2014-4381 : Ian Beer of Google Project Zero

Lockdown
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A device can be manipulated into incorrectly presenting the
home screen when the device is activation locked
Description:  An issue existed with unlocking behavior that caused a
device to proceed to the home screen even if it should still be in an
activation locked state. This was addressed by changing the
information a device verifies during an unlock request.
CVE-ID
CVE-2014-1360

Mail
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Login credentials can be sent in plaintext even if the
server has advertised the LOGINDISABLED IMAP capability
Description:  Mail sent the LOGIN command to servers even if they had
advertised the LOGINDISABLED IMAP capability. This issue is mostly a
concern when connecting to servers that are configured to accept non-
encrypted connections and that advertise LOGINDISABLED. This issue
was addressed by respecting the LOGINDISABLED IMAP capability.
CVE-ID
CVE-2014-4366 : Mark Crispin

Mail
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A person with physical access to an iOS device may
potentially read email attachments
Description:  A logic issue existed in Mail's use of Data Protection
on email attachments. This issue was addressed by properly setting
the Data Protection class for email attachments.
CVE-ID
CVE-2014-1348 : Andreas Kurtz of NESO Security Labs

Profiles
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Voice Dial is unexpectedly enabled after upgrading iOS
Description:  Voice Dial was enabled automatically after upgrading
iOS. This issue was addressed through improved state management.
CVE-ID
CVE-2014-4367 : Sven Heinemann

Safari
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  User credentials may be disclosed to an unintended site via
autofill
Description:  Safari may have autofilled user names and passwords
into a subframe from a different domain than the main frame. This
issue was addressed through improved origin tracking.
CVE-ID
CVE-2013-5227 : Niklas Malmgren of Klarna AB

Safari
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  An attacker with a privileged network position may intercept
user credentials
Description:  Saved passwords were autofilled on http sites, on https
sites with broken trust, and in iframes. This issue was addressed by
restricting password autofill to the main frame of https sites with
valid certificate chains.
CVE-ID
CVE-2014-4363 : David Silver, Suman Jana, and Dan Boneh of Stanford
University working with Eric Chen and Collin Jackson of Carnegie
Mellon University

Sandbox Profiles
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Apple ID information is accessible by third-party apps
Description:  An information disclosure issue existed in the third-
party app sandbox. This issue was addressed by improving the third-
party sandbox profile.
CVE-ID
CVE-2014-4362 : Andreas Kurtz of NESO Security Labs and Markus
TroBbach of Heilbronn University

Settings
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Text message previews may appear at the lock screen even
when this feature is disabled
Description:  An issue existed in the previewing of text message
notifications at the lock screen. As a result, the contents of
received messages would be shown at the lock screen even when
previews were disabled in Settings. The issue was addressed through
improved observance of this setting.
CVE-ID
CVE-2014-4356 : Mattia Schirinzi from San Pietro Vernotico (BR),
Italy

syslog
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A local user may be able to change permissions on arbitrary
files
Description:  syslogd followed symbolic links while changing
permissions on files. This issue was addressed through improved
handling of symbolic links.
CVE-ID
CVE-2014-4372 : Tielei Wang and YeongJin Jang of Georgia Tech
Information Security Center (GTISC)

Weather
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Location information was sent unencrypted
Description:  An information disclosure issue existed in an API used
to determine local weather. This issue was addressed by changing
APIs.

WebKit
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A malicious website may be able to track users even when
private browsing is enabled
Description:  A web application could store HTML 5 application cache
data during normal browsing and then read the data during private
browsing. This was addressed by disabling access to the application
cache when in private browsing mode.
CVE-ID
CVE-2014-4409 : Yosuke Hasegawa (NetAgent Co., Led.)

WebKit
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  Visiting a maliciously crafted website may lead to an
unexpected application termination or arbitrary code execution
Description:  Multiple memory corruption issues existed in WebKit.
These issues were addressed through improved memory handling.
CVE-ID
CVE-2013-6663 : Atte Kettunen of OUSPG
CVE-2014-1384 : Apple
CVE-2014-1385 : Apple
CVE-2014-1387 : Google Chrome Security Team
CVE-2014-1388 : Apple
CVE-2014-1389 : Apple
CVE-2014-4410 : Eric Seidel of Google
CVE-2014-4411 : Google Chrome Security Team
CVE-2014-4412 : Apple
CVE-2014-4413 : Apple
CVE-2014-4414 : Apple
CVE-2014-4415 : Apple

WiFi
Available for:  iPhone 4s and later,
iPod touch (5th generation) and later, iPad 2 and later
Impact:  A device may be passively tracked by its WiFi MAC address
Description:  An information disclosure existed because a stable MAC
address was being used to scan for WiFi networks. This issue was
addressed by randomizing the MAC address for passive WiFi scans.

Note:
iOS 8 contains changes to some diagnostic capabilities.
For details, please consult http://support.apple.com/kb/HT6331
iOS 8 now permits devices to untrust all previously trusted
computers. Instructions can be found at
http://support.apple.com/kb/HT5868


Installation note:

This update is available through iTunes and Software Update on your
iOS device, and will not appear in your computer's Software Update
application, or in the Apple Downloads site. Make sure you have an
Internet connection and have installed the latest version of iTunes
from www.apple.com/itunes/

iTunes and Software Update on the device will automatically check
Apple's update server on its weekly schedule. When an update is
detected, it is downloaded and the option to be installed is
presented to the user when the iOS device is docked. We recommend
applying the update immediately if possible. Selecting Don't Install
will present the option the next time you connect your iOS device.

The automatic update process may take up to a week depending on the
day that iTunes or the device checks for updates. You may manually
obtain the update via the Check for Updates button within iTunes, or
the Software Update on your device.

To check that the iPhone, iPod touch, or iPad has been updated:

* Navigate to Settings
* Select General
* Select About. The version after applying this update
will be "8".

Information will also be posted to the Apple Security Updates
web site: http://support.apple.com/kb/HT1222

This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/

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Contact information for the authors of the original document is included
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Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
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===========================================================================
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