Apple Mac OS X up to 10.10.4 NTFS memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple Mac OS X up to 10.10.4 and classified as problematic. The impacted element is an unknown function of the component NTFS. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2015-5763. Moreover, an exploit is present. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.10.4 (Operating System). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component NTFS. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

ntfs in Apple OS X before 10.10.5 allows local users to gain privileges or cause a denial of service (memory corruption) via unspecified vectors.

The weakness was disclosed 08/11/2015 by Maxime Villard with Google Security Team as HT205031 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2015-5763 since 08/06/2015. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in Ruby. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123806 (Apple Mac OS X v10.10.5 and Security Update 2015-006 Not Installed (APPLE-SA-2015-08-13-2)).

Upgrading to version 10.10.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 76340†), SecurityTracker (ID 1033276†) and Vulnerability Center (SBV-52105†). The entries VDB-77174, VDB-77175, VDB-77176 and VDB-77177 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

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OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-03 October-15
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.10.5

Timelineinfo

08/06/2015 🔍
08/11/2015 +5 days 🔍
08/11/2015 +0 days 🔍
08/13/2015 +2 days 🔍
08/13/2015 +0 days 🔍
08/14/2015 +1 days 🔍
08/14/2015 +0 days 🔍
08/16/2015 +2 days 🔍
08/17/2015 +1 days 🔍
02/03/2025 +3458 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205031
Researcher: Maxime Villard
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-5763 (🔍)
GCVE (CVE): GCVE-0-2015-5763
GCVE (VulDB): GCVE-100-77227
SecurityFocus: 76340 - Apple Mac OS X Prior to 10.10.5 Multiple Security Vulnerabilities
SecurityTracker: 1033276 - Apple OS X Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Deny Service and Let Local Users Gain Elevated Privileges
Vulnerability Center: 52105 - Apple MacOS X 10.10 through 10.10.4 Local Privilege Escalation or DoS in Ntfs, High

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

Entryinfo

Created: 08/14/2015 14:33
Updated: 02/03/2025 04:28
Changes: 08/14/2015 14:33 (62), 10/15/2017 11:39 (18), 02/03/2025 04:28 (18)
Complete: 🔍
Cache ID: 216::103

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