CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.6 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Apple Mac OS X up to 10.11.5. Affected by this issue is some unknown functionality of the component Login Window. The manipulation leads to access control. This vulnerability is handled as CVE-2016-4638. Attacking locally is a requirement. There is no exploit available. It is recommended to upgrade the affected component. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Details
A vulnerability classified as critical was found in Apple Mac OS X up to 10.11.5 (Operating System). Affected by this vulnerability is some unknown processing of the component Login Window. 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:
Login Window in Apple OS X before 10.11.6 allows attackers to gain privileges via a crafted app that leverages a "type confusion."
The weakness was disclosed 07/18/2016 by Stefan Esser with Zero Day Initiative as HT206903 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2016-4638 since 05/11/2016. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:
A type confusion issue was addressed through improved memory handling.
The vulnerability scanner Nessus provides a plugin with the ID 92496 (Mac OS X 10.11.x < 10.11.6 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 and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370095 (Apple Mac OS X v10.11.6 and Security Update 2016-004 Not Installed (APPLE-SA-2016-07-18-1)).
Upgrading to version 10.11.6 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 Tenable (92496) and SecurityFocus (BID 91824†). The entries VDB-88079, VDB-89692, VDB-89709 and VDB-89685 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
License
Support
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 7.6
VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: 🔍
Exploiting
Class: Access controlCWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 92496
Nessus Name: Mac OS X 10.11.x < 10.11.6 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 63631
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities December-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Mac OS X 10.11.6
Timeline
05/11/2016 🔍07/18/2016 🔍
07/18/2016 🔍
07/18/2016 🔍
07/19/2016 🔍
07/21/2016 🔍
07/21/2016 🔍
10/01/2024 🔍
Sources
Vendor: apple.comAdvisory: HT206903
Researcher: Stefan Esser
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-4638 (🔍)
GCVE (CVE): GCVE-0-2016-4638
GCVE (VulDB): GCVE-100-89767
SecurityFocus: 91824 - Apple Mac OS X APPLE-SA-2016-07-18-1 Multiple Security Vulnerabilities
SecurityTracker: 1036348
scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍
Entry
Created: 07/19/2016 07:36 PMUpdated: 10/01/2024 12:44 AM
Changes: 07/19/2016 07:36 PM (70), 03/03/2019 01:08 PM (13), 09/06/2022 09:40 AM (3), 10/01/2024 12:44 AM (16)
Complete: 🔍
Cache ID: 18:396:40
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