Apple Mac OS X 10.9.5/10.10/10.10.1/10.10.2/10.10.3 HFS Parameter Kernel Memory information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.6$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Apple Mac OS X 10.9.5/10.10/10.10.1/10.10.2/10.10.3 (Operating System). Affected is an unknown functionality of the component HFS Parameter Handler. The manipulation with an unknown input leads to a information disclosure vulnerability (Kernel Memory). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

The kernel in Apple iOS before 8.4 and OS X before 10.10.4 does not properly handle HFS parameters, which allows attackers to obtain sensitive memory-layout information via a crafted app.

The weakness was shared 06/30/2015 by Peter Rutenbar with Zero Day Initiative as HT204942 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2015-3721 since 05/07/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 84488 (Mac OS X 10.10.x < 10.10.4 Multiple Vulnerabilities (GHOST) (Logjam)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks.

Upgrading to version 10.10.4 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 X-Force (104211) and Tenable (84488). The entries 75568, 76185, 76186 and 76187 are related to this item.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Kernel Memory
Class: Information disclosure / Kernel Memory
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 84488
Nessus Name: Mac OS X 10.10.x < 10.10.4 Multiple Vulnerabilities (GHOST) (Logjam)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 July15
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Mac OS X 10.10.4

Timelineinfo

05/07/2015 🔍
06/30/2015 +54 days 🔍
06/30/2015 +0 days 🔍
06/30/2015 +0 days 🔍
06/30/2015 +0 days 🔍
07/01/2015 +1 days 🔍
07/01/2015 +0 days 🔍
07/02/2015 +1 days 🔍
07/02/2015 +0 days 🔍
05/22/2022 +2516 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT204942
Researcher: Peter Rutenbar
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2015-3721 (🔍)
X-Force: 104211 - Apple Mac OS X HFS information disclosure
SecurityTracker: 1032760 - Apple OS X Multiple Flaws Let Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges
Vulnerability Center: 50902 - Apple iOS <8.4 Remote Kernel Memory Layout Information Disclosure Vulnerability, Medium
SecurityFocus: 75491 - Apple Mac OS X and iOS Multiple Security Vulnerabilities

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

Entryinfo

Created: 07/02/2015 10:59
Updated: 05/22/2022 20:59
Changes: 07/02/2015 10:59 (75), 07/03/2017 08:34 (9), 05/22/2022 20:59 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you know our Splunk app?

Download it now for free!