Apple iOS up to 10.2.0 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 10.2.0. It has been rated as critical. This issue affects some unknown processing of the component WebKit. This manipulation causes memory corruption. This vulnerability is registered as CVE-2017-2356. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Apple iOS up to 10.2.0 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is an unknown function 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 01/19/2017. The weakness was published 01/23/2017 with Team Pangu as HT207482 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2017-2356 since 12/01/2016. 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 pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/03/2022). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Multiple memory corruption issues were addressed through improved input validation.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 96798 (macOS : Apple Safari < 10.0.3 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 l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370283 (Apple Safari 10.0.3 Not Installed (APPLE-SA-2017-01-23-5)).

Upgrading to version 10.2.1 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 (96798) and SecurityFocus (BID 95736†). Similar entries are available at VDB-95912, VDB-95921, VDB-95922 and VDB-95919. 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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NVD Base Score: 🔍

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: 96798
Nessus Name: macOS : Apple Safari < 10.0.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802225
OpenVAS Name: Apple iCloud Multiple Code Execution Vulnerabilities Feb17 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 10.2.1

Timelineinfo

12/01/2016 🔍
01/19/2017 +49 days 🔍
01/23/2017 +4 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/25/2017 +2 days 🔍
01/26/2017 +1 days 🔍
02/20/2017 +25 days 🔍
11/03/2022 +2082 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207482
Organization: Team Pangu
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-2356 (🔍)
GCVE (CVE): GCVE-0-2017-2356
GCVE (VulDB): GCVE-100-95935
SecurityFocus: 95736 - WebKit Multiple Memory Corruption Vulnerabilities
OSVDB: - CVE-2017-2356 - Apple - Multiple Products - Memory Corruption Issue
SecurityTracker: 1037668

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

Entryinfo

Created: 01/25/2017 11:35
Updated: 11/03/2022 15:20
Changes: 01/25/2017 11:35 (71), 07/31/2020 11:31 (15), 11/03/2022 15:20 (4)
Complete: 🔍
Cache ID: 216::103

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