Apple iOS up to 10.3.1 Userspace Entitlement race condition

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

A vulnerability, which was classified as critical, was found in Apple iOS up to 10.3.1 (Smartphone Operating System). Affected is some unknown processing of the component Userspace Entitlement. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 03/23/2017. The weakness was released 06/09/2017 as confirmed exploit (Exploit-DB). The advisory is available at exploit-db.com. This vulnerability is traded as CVE-2017-7004 since 03/17/2017. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Google Security Research in ANSI C and been published immediately after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 53 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 100270 (macOS 10.12.x < 10.12.5 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.

Upgrading to version 10.3.2 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100270) and Exploit-DB (42145). Entries connected to this vulnerability are available at 101255, 101256, 101257 and 101258.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.0
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Google Security Research
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100270
Nessus Name: macOS 10.12.x < 10.12.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: iOS 10.3.2

Timelineinfo

03/17/2017 🔍
03/23/2017 +6 days 🔍
05/15/2017 +52 days 🔍
05/15/2017 +0 days 🔍
05/18/2017 +3 days 🔍
06/09/2017 +22 days 🔍
06/09/2017 +0 days 🔍
06/09/2017 +0 days 🔍
06/14/2017 +5 days 🔍
04/03/2018 +293 days 🔍
12/28/2020 +1000 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: exploit-db.com
Researcher: Ian Beer
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7004 (🔍)
SecurityFocus: 98468

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 06/14/2017 13:18
Updated: 12/28/2020 14:31
Changes: 06/14/2017 13:18 (75), 10/17/2019 17:13 (5), 12/28/2020 14:28 (2), 12/28/2020 14:31 (3)
Complete: 🔍

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