Apple tvOS up to 10.2.2 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Apple tvOS up to 10.2.2. The impacted element is an unknown function of the component WebKit. This manipulation causes memory corruption. This vulnerability is handled as CVE-2017-7120. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 10.2.2 (Digital Media Player). It has been declared as critical. Affected by this vulnerability is an unknown code of the component WebKit. 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 bug was discovered 09/12/2017. The weakness was released 09/25/2017 by ChenQin as HT208113 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2017-7120 since 03/17/2017. The attack can be launched remotely. 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 advisory points out:

Multiple memory corruption issues were addressed with improved memory handling.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 103419 (Apple TV < 11 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370585 (Apple iCloud for Windows Multiple Security Vulnerabilities (HT208142)).

Upgrading to version 11.0 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 (103419) and SecurityFocus (BID 101006†). Entries connected to this vulnerability are available at VDB-102678, VDB-107049, VDB-107050 and VDB-107051. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103419
Nessus Name: Apple TV < 11 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802225
OpenVAS Name: Apple iCloud Security Updates(HT208142)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: tvOS 11.0

Timelineinfo

03/17/2017 🔍
09/12/2017 +179 days 🔍
09/22/2017 +10 days 🔍
09/25/2017 +2 days 🔍
09/25/2017 +0 days 🔍
09/25/2017 +0 days 🔍
10/22/2017 +27 days 🔍
10/23/2017 +1 days 🔍
01/20/2021 +1185 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208113
Researcher: Wang Junjie, Wei Lei, Liu Yang (ChenQin)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7120 (🔍)
GCVE (CVE): GCVE-0-2017-7120
GCVE (VulDB): GCVE-100-108511
SecurityFocus: 101006
SecurityTracker: 1039384

See also: 🔍

Entryinfo

Created: 10/23/2017 11:53
Updated: 01/20/2021 12:26
Changes: 10/23/2017 11:53 (78), 11/29/2019 20:49 (3), 01/20/2021 12:22 (3), 01/20/2021 12:26 (3)
Complete: 🔍
Cache ID: 216::103

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