Apple iOS/iPadOS up to 14.3 WebKit Remote Code Execution

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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6.0$5k-$25k0.00

A vulnerability was found in Apple iOS and iPadOS up to 14.3 (Smartphone Operating System) and classified as critical. Affected by this issue is some unknown functionality of the component WebKit. Impacted is confidentiality, integrity, and availability.

The weakness was published 01/26/2021 as HT212146 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2021-1870. Successful exploitation requires user interaction by the victim. Technical details are unknown but a private exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/20/2024). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

It is declared as highly functional. This issue was added on 11/03/2021 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 11/17/2021:

Apply updates per vendor instructions.

Upgrading to version 14.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A logic issue was addressed with improved restrictions.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Remote Code Execution
CWE: Unknown
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍

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: 🔍

Upgrade: iOS/iPadOS 14.4

Timelineinfo

12/08/2020 🔍
01/26/2021 +49 days 🔍
01/26/2021 +0 days 🔍
01/28/2021 +2 days 🔍
04/20/2024 +1178 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT212146
Status: Confirmed

CVE: CVE-2021-1870 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 01/28/2021 06:22
Updated: 04/20/2024 13:03
Changes: 01/28/2021 06:22 (17), 01/28/2021 06:25 (30), 01/28/2021 06:28 (2), 02/20/2021 19:33 (1), 04/20/2024 13:03 (23)
Complete: 🔍

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