5762 : Apple Mac OS X AppleFileServer Pre-Authentication Remote Overflow
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Info

Last Modified
18 days ago

Percent Complete
100%

Disclosure
May 03, 2004

Discovery
Mar 26, 2004

Dates

Exploit
Aug 15, 2004

Solution
Unknown

Description

 MacOS X contains a flaw that may allow a remote attacker to gain administrative privileges. The issue is due to a stack buffer overflow in the pre-authentication routine. The overflow occurs when the PathName argument from the LoginExt packet requests authentication using the Cleartext Password User Authentication Method (UAM). With a specially crafted request, an attacker can gain full administrative privilege over the machine remotely.

Classification

 Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Public
Disclosure: OSVDB Verified

Solution

 Apple has released a patch to address this vulnerability. It is also possible to correct the flaw by implementing the following workaround: Disable AFS if not essential.

For Mac OS X 10.3.3 "Panther"
=============================
http://download.info.apple.com/Mac_OS_X/061-1213.20040503.vngr3/2Z/SecUpd2004-05-03Pan.dmg

For Mac OS X Server 10.3.3
==========================
http://download.info.apple.com/Mac_OS_X/061-1215.20040503.mPp9k/2Z/SecUpdSrvr2004-05-03Pan.dmg

For Mac OS X 10.2.8 "Jaguar"
=============================
http://download.info.apple.com/Mac_OS_X/061-1217.20040503.BmkY5/2Z/SecUpd2004-05-03Jag.dmg

For Mac OS X Server 10.2.8
==========================
http://download.info.apple.com/Mac_OS_X/061-1219.20040503.Zsw3S/2Z/SecUpdSrvr2004-05-03Jag.dmg

Products
Apple Computer, Inc.
Watch-list
Mac OS X
Watch-list
 10.2.8
10.3.2
10.3.3

References

Tools & Filters
12257

Snort

 2545

Credit
  • Dave G. - davegatstake.com - @stake, Inc.
  • Dino Dai Zovi - Matasano Security

CVSSv2 Score

CVSSv2 Base Score = 5.1
Source: nvd.nist.gov | Generated: 2003-12-31 | Disagree?

Access_vector_2 Access_complexity_0 Authentication_2 Confidentiality_impact_1 Integrity_impact_1 Availability_impact_1

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

None found at this time

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