VDB-78313 · CVE-2015-5849 · BID 76910

Apple Mac OS X up to 10.10 AppleEvents access control

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.
7.0	$0-$5k	0.04

A vulnerability has been found in Apple Mac OS X up to 10.10 (Operating System) and classified as critical. Affected by this vulnerability is an unknown code of the component AppleEvents. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The filtering implementation in AppleEvents in Apple OS X before 10.11 mishandles attempts to send events to a different user, which allows attackers to bypass intended access restrictions by leveraging a screen-sharing connection.

The weakness was presented 10/09/2015 (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2015-5849 since 08/06/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 86270 (Mac OS X < 10.11 Multiple Vulnerabilities (GHOST)), 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 10.11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (86270). See 9015, 67455, 68413 and 74127 for similar entries.

Productinfo

Type

Operating System

Vendor

Apple

Name

Mac OS X

Version

License

commercial

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: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 86270
Nessus Name: Mac OS X < 10.11 Multiple Vulnerabilities (GHOST)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-02 October-15
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mac OS X 10.11

Timelineinfo

08/06/2015 🔍
09/30/2015 +55 days 🔍
10/01/2015 +1 days 🔍
10/09/2015 +8 days 🔍
10/09/2015 +0 days 🔍
10/12/2015 +3 days 🔍
06/20/2022 +2443 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-5849 (🔍)
SecurityTracker: 1033703
Vulnerability Center: 53086 - Apple MacOS X before 10.11 Remote Security Bypass due to an Issue in AppleEvents - CVE-2015-5849, Medium
SecurityFocus: 76910

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

Entryinfo

Created: 10/12/2015 10:29
Updated: 06/20/2022 12:08
Changes: 10/12/2015 10:29 (54), 02/01/2018 07:26 (12), 06/20/2022 12:01 (3), 06/20/2022 12:08 (1)
Complete: 🔍