Apple iOS up to 11.1.2 Kernel type conversion

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Apple iOS up to 11.1.2. Affected by this issue is some unknown functionality of the component Kernel. Executing a manipulation can lead to type conversion. This vulnerability is handled as CVE-2017-13855. It is possible to launch the attack on the local host. Additionally, an exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Apple iOS up to 11.1.2 (Smartphone Operating System). This vulnerability affects an unknown part of the component Kernel. The manipulation with an unknown input leads to a type conversion vulnerability. The CWE definition for the vulnerability is CWE-704. The product does not correctly convert an object, resource, or structure from one type to a different type. As an impact it is known to affect confidentiality.

The bug was discovered 12/02/2017. The weakness was released 12/02/2017 by Jann Horn with Google Project Zero as HT208334 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2017-13855 since 08/30/2017. Local access is required to approach this attack. A single authentication is necessary for exploitation. Technical details are unknown but a public exploit is available. The advisory points out:

A type confusion issue was addressed with improved memory handling.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 105612 (Apple TV < 11.2 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 370677 (Apple macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan Not Installed).

Upgrading to version 11.2 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 Exploit-DB (43318), Tenable (105612) and SecurityFocus (BID 102100†). Entries connected to this vulnerability are available at VDB-106777, VDB-107566, VDB-109077 and VDB-109291. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Type conversion
CWE: CWE-704
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105612
Nessus Name: Apple TV < 11.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 64745
OpenVAS Name: Apple MacOSX Security Updates(HT208331)-02
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 11.2

Timelineinfo

08/30/2017 🔍
12/02/2017 +94 days 🔍
12/02/2017 +0 days 🔍
12/02/2017 +0 days 🔍
12/06/2017 +4 days 🔍
12/10/2017 +4 days 🔍
12/25/2017 +15 days 🔍
01/05/2018 +11 days 🔍
01/13/2025 +2565 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208334
Researcher: Jann Horn
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-13855 (🔍)
GCVE (CVE): GCVE-0-2017-13855
GCVE (VulDB): GCVE-100-110386
SecurityFocus: 102100 - Apple iOS/WatchOS/tvOS/macOS Multiple Security Vulnerabilities
SecurityTracker: 1039952

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

Entryinfo

Created: 12/10/2017 09:00
Updated: 01/13/2025 11:04
Changes: 12/10/2017 09:00 (82), 12/13/2019 08:46 (8), 01/26/2021 10:27 (4), 01/13/2025 11:04 (15)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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