VDB-155746 · CVE-2020-9835 · HT211168

Apple iOS/iPadOS up to 13.4.1 FaceTime input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6	$5k-$25k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple iOS and iPadOS up to 13.4.1. This affects an unknown function of the component FaceTime. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2020-9835. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Apple iOS and iPadOS up to 13.4.1 (Smartphone Operating System). This vulnerability affects an unknown part of the component FaceTime. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue existed in the pausing of FaceTime video. The issue was resolved with improved logic. This issue is fixed in iOS 13.5 and iPadOS 13.5. A userâ€™s video may not be paused in a FaceTime call if they exit the FaceTime app while the call is ringing.

The weakness was released 05/20/2020 by Olivier Levesque as HT211168 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2020-9835. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 05/30/2020). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

An issue existed in the pausing of FaceTime video. The issue was resolved with improved logic.

Upgrading to version 13.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Entries connected to this vulnerability are available at VDB-155738, VDB-155739, VDB-155740 and VDB-155741. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Smartphone Operating System

Vendor

Apple

Name

Version

License

commercial

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

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

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS/iPadOS 13.5

Timelineinfo

03/02/2020 🔍
05/20/2020 +79 days 🔍
05/20/2020 +0 days 🔍
05/29/2020 +9 days 🔍
10/20/2020 +144 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211168
Researcher: Olivier Levesque
Status: Confirmed

CVE: CVE-2020-9835 (🔍)
GCVE (CVE): GCVE-0-2020-9835
GCVE (VulDB): GCVE-100-155746
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 05/30/2020 00:40
Updated: 10/20/2020 07:32
Changes: 05/30/2020 00:40 (47), 05/30/2020 00:45 (17), 10/20/2020 07:32 (1)
Complete: 🔍
Cache ID: 216::103

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