Apple iOS/iPadOS Crash Reporter behavioral workflow

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 (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS. It has been classified as problematic. This affects an unknown function of the component Crash Reporter. This manipulation causes behavioral workflow. This vulnerability is registered as CVE-2021-1787. The attack needs to be launched locally. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Apple iOS and iPadOS (Smartphone Operating System) (unknown version) and classified as problematic. Affected by this vulnerability is an unknown code block of the component Crash Reporter. The manipulation with an unknown input leads to a behavioral workflow vulnerability. The CWE definition for the vulnerability is CWE-841. The product supports a session in which more than one behavior must be performed by an actor, but it does not properly ensure that the actor performs the behaviors in the required sequence. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 02/01/2021 by James Hutchins as confirmed advisory (Website). This vulnerability is known as CVE-2021-1787 since 12/08/2020. The exploitation appears to be easy. An attack has to be approached locally. The requirement for exploitation is a single authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/09/2021). It is expected to see the exploit prices for this product increasing in the near future.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Behavioral workflow
CWE: CWE-841 / CWE-840
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

12/08/2020 🔍
02/01/2021 +55 days 🔍
02/01/2021 +0 days 🔍
04/03/2021 +61 days 🔍
04/09/2021 +6 days 🔍

Sourcesinfo

Vendor: apple.com

Researcher: James Hutchins
Status: Confirmed

CVE: CVE-2021-1787 (🔍)
GCVE (CVE): GCVE-0-2021-1787
GCVE (VulDB): GCVE-100-172345
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 04/03/2021 12:25
Updated: 04/09/2021 13:38
Changes: 04/03/2021 12:25 (33), 04/09/2021 13:38 (10)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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