Mac OS X Finder Disk Image Buffer Overflow Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1017662
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SecurityTracker URL: http://securitytracker.com/id?1017662
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CVE Reference: CVE-2007-0197
(Links to External Site)
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Date: Feb 16 2007
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Impact: Execution of arbitrary code via network, User access via network
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Fix Available: Yes
Exploit Included: Yes
Vendor Confirmed: Yes
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Advisory: Apple Security Advisory
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Version(s): 10.4.8
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Description: A vulnerability was reported in Mac OS X Finder. A remote user can cause arbitrary code to be executed on the target user's system.
A buffer overflow exists in Finder's processing of volume names. A remote user can create a specially crafted disk image that, when
mounted by the target user, will trigger the buffer overflow and execute arbitrary code on the target system.
Versions prior
to Mac OS X v10.4 are not affected.
Kevin Finisterre of DigitalMunition discovered this vulnerability.
The original advisory
and demonstration exploit is available at:
http://projects.info-pull.com/moab/MOAB-09-01-2007.html
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Impact: A remote user can create a disk image that, when mounted by the target user, will execute arbitrary code on the target user's system.
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Solution: Apple has released a fix as part of Security Update 2007-002, available from the Software Update pane in System Preferences, or Apple's
Software Downloads web site at:
http://www.apple.com/support/downloads/
For Mac OS X v10.4.8 (PowerPC)
The download file
is named: "SecUpd2007-002Ti.dmg"
Its SHA-1 digest is: 79da4e0f61288277f9896e761903abf748d2dc21
For Mac OS X v10.4.8 (Intel)
The
download file is named: "SecUpd2007-002Univ.dmg"
Its SHA-1 digest is: 9a4b97853ac05ff407a8b8fe0906d916e219648b
For Mac OS X
v10.3.9
The download file is named: "SecUpd2007-002Pan.dmg"
Its SHA-1 digest is: 81199248bf7218d8788663153131ab51d31320a1
The
Apple advisory is available at:
http://docs.info.apple.com/article.html?artnum=305102
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Vendor URL: docs.info.apple.com/article.html?artnum=305102 (Links to External Site)
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Cause: Boundary error
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Underlying OS: UNIX (Mac OS X)
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Reported By: Apple Product Security <product-security-noreply@lists.apple.com>
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Message History:
None.
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Source Message Contents
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Date: Thu, 15 Feb 2007 09:15:22 -0800
From: Apple Product Security <product-security-noreply@lists.apple.com>
Subject: APPLE-SA-2007-02-15 Security Update 2007-002
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
APPLE-SA-2007-02-15 Security Update 2007-002
Security Update 2007-002 is now available and addresses the following
issues:
Finder
CVE-ID: CVE-2007-0197
Available for: Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact: Mounting a maliciously-crafted disk image may lead to an
application crash or arbitrary code execution
Description: A buffer overflow exists in Finder's handling of
volume names. By enticing a user to mount a malicious disk
image, an attacker could trigger this issue, which may lead to
an application crash or arbitrary code execution. A proof of
concept for this issue has been published on the Month of Apple
Bugs web site (MOAB-09-01-2007). This update addresses the issue
by performing additional validation of disk images. This issue
does not affect systems prior to Mac OS X v10.4. Credit to Kevin
Finisterre of DigitalMunition for reporting this issue.
iChat
CVE-ID: CVE-2007-0614, CVE-2007-0710
Available for: Mac OS X v10.3.9, Mac OS X Server v10.3.9, Mac OS
X v10.4.8, Mac OS X Server v10.4.8
Impact: Attackers on the local network may be able to cause
iChat to crash
Description: A null pointer dereference in iChat's Bonjour
message handling could allow a local network attacker to cause
an application crash. A proof of concept for this issue in Mac
OS X v10.4 has been published on the Month of Apple Bugs web
site (MOAB-29-01-2007). This update addresses the issues by
performing additional validation of Bonjour messages.
iChat
CVE-ID: CVE-2007-0021
Available for: Mac OS X v10.3.9, Mac OS X Server v10.3.9, Mac OS
X v10.4.8, Mac OS X Server v10.4.8
Impact: Visiting malicious websites may lead to an application
crash or arbitrary code execution
Description: A format string vulnerability exists in the iChat
AIM URL handler. By enticing a user to access a maliciously-crafted
AIM URL, an attacker can trigger the overflow, which may lead to an
application crash or arbitrary code execution. A proof of concept for
this issue has been published on the Month of Apple Bugs web site
(MOAB-20-01-2007). This update addresses the issue by performing
additional validation of AIM URLs.
UserNotification
CVE-ID: CVE-2007-0023
Available for: Mac OS X v10.3.9, Mac OS X Server v10.3.9, Mac OS
X v10.4.8, Mac OS X Server v10.4.8
Impact: Malicious local users may be able to obtain system
privileges
Description: The UserNotificationCenter process runs with
elevated privileges in the context of a local user. This may
allow a malicious local user to overwrite or modify system
files. A program that triggers this issue has been published on
the Month of Apple Bugs web site (MOAB-22-01-2007). This update
addresses the issue by having UserNotificationCenter drop its
group privileges immediately after launching.
Security Update 2007-002 may be obtained from the Software Update
pane in System Preferences, or Apple's Software Downloads web site:
http://www.apple.com/support/downloads/
For Mac OS X v10.4.8 (PowerPC)
The download file is named: "SecUpd2007-002Ti.dmg"
Its SHA-1 digest is: 79da4e0f61288277f9896e761903abf748d2dc21
For Mac OS X v10.4.8 (Intel)
The download file is named: "SecUpd2007-002Univ.dmg"
Its SHA-1 digest is: 9a4b97853ac05ff407a8b8fe0906d916e219648b
For Mac OS X v10.3.9
The download file is named: "SecUpd2007-002Pan.dmg"
Its SHA-1 digest is: 81199248bf7218d8788663153131ab51d31320a1
Information will also be posted to the Apple Product Security
web site:
http://docs.info.apple.com/article.html?artnum=61798
This message is signed with Apple's Product Security PGP key,
and details are available at:
http://www.apple.com/support/security/pgp/
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