Apple iOS up to 11.4.0 LinkPresentation input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.8$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 11.4.0 and classified as critical. This vulnerability affects unknown code of the component LinkPresentation. Such manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2018-4277. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 11.4.0 (Smartphone Operating System) and classified as critical. Affected by this issue is an unknown code of the component LinkPresentation. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, and integrity. CVE summarizes:

In iOS before 11.4.1, watchOS before 4.3.2, tvOS before 11.4.1, Safari before 11.1.1, macOS High Sierra before 10.13.6, a spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation.

The bug was discovered 07/09/2018. The weakness was disclosed 07/09/2018 by Colin Percival with Tencent as HT208938 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2018-4277 since 01/02/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/05/2023). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation.

The vulnerability scanner Nessus provides a plugin with the ID 111110 (Apple TV < 11.4.1 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 371061 (Apple macOS High Sierra 10.13.6, Security Update 2018-004 Sierra, Security Update 2018-004 El Capitan Not Installed (HT208937)).

Upgrading to version 11.4.1 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 (111110) and SecurityFocus (BID 104460†). The entries VDB-112694, VDB-118751, VDB-120959 and VDB-120973 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 111110
Nessus Name: Apple TV < 11.4.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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 11.4.1

Timelineinfo

01/02/2018 🔍
06/13/2018 +162 days 🔍
07/09/2018 +26 days 🔍
07/09/2018 +0 days 🔍
07/09/2018 +0 days 🔍
07/10/2018 +1 days 🔍
07/16/2018 +6 days 🔍
01/11/2019 +179 days 🔍
04/05/2023 +1545 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208938
Researcher: Colin Percival
Organization: Tencent
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4277 (🔍)
GCVE (CVE): GCVE-0-2018-4277
GCVE (VulDB): GCVE-100-120992
SecurityFocus: 104460 - Intel Core Microprocessors CVE-2018-3665 Information Disclosure Vulnerability
SecurityTracker: 1041232

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

Entryinfo

Created: 07/10/2018 14:22
Updated: 04/05/2023 12:51
Changes: 07/10/2018 14:22 (70), 03/03/2020 20:05 (15), 04/05/2023 12:51 (4)
Complete: 🔍
Cache ID: 216::103

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