Apple Mac OS X up to 10.6.4 input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

A vulnerability was found in Apple Mac OS X up to 10.6.4 (Operating System). It has been classified as critical. Affected is an unknown code block. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The i386_set_ldt system call in the kernel in Apple Mac OS X before 10.6.7 does not properly handle call gates, which allows local users to gain privileges via vectors involving the creation of a call gate entry.

The weakness was disclosed 03/22/2011 by hkpco as HT4581 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2011-0182. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed by hkpco in ANSI C and been published 7 months after the advisory. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 52754 (Mac OS X 10.6.x < 10.6.7 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119064 (Apple Mac OS X v10.6.7 and Security Update 2011-001 Not Installed (APPLE-SA-2011-03-21-1)).

Upgrading to version 10.6.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (66230), Exploit-DB (17901), Tenable (52754), SecurityFocus (BID 46997†) and Vulnerability Center (SBV-30685†). The entries VDB-4322, VDB-4428, VDB-55692 and VDB-55689 are pretty similar.

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CPE 2.3info

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CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: hkpco
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 52754
Nessus Name: Mac OS X 10.6.x < 10.6.7 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802259
OpenVAS Name: Apple Mac OS X i386_set_ldt() Privilege Escalation Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Mac OS X 10.6.5

Timelineinfo

12/23/2010 🔍
03/21/2011 +88 days 🔍
03/21/2011 +0 days 🔍
03/22/2011 +1 days 🔍
03/22/2011 +0 days 🔍
03/28/2011 +6 days 🔍
09/28/2011 +184 days 🔍
09/28/2011 +0 days 🔍
03/20/2015 +1269 days 🔍
01/19/2025 +3593 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT4581
Researcher: hkpco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-0182 (🔍)
X-Force: 66230
SecurityFocus: 46997 - Apple Mac OS X 'i386_set_ldt()' Privilege Escalation Vulnerability
Vulnerability Center: 30685 - Apple Mac OS X 10.6-10.6.6 i386_set_ldt system call Remote Arbitrary Code Execution Vulnerability, High

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 03/20/2015 04:16 PM
Updated: 01/19/2025 11:20 PM
Changes: 03/20/2015 04:16 PM (64), 03/20/2017 09:18 AM (15), 10/21/2021 08:48 AM (4), 10/21/2021 08:52 AM (1), 11/21/2024 10:35 PM (14), 01/19/2025 11:20 PM (2)
Complete: 🔍
Cache ID: 18:54C:40

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