2021-30797 | Apple Safari WebKit Remote Code Execution (HT212606)


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-$25k 0.19

A vulnerability was found in Apple Safari up to 14.1.1 (Web Browser). It has been rated as critical. Affected by this issue is an unknown functionality of the component WebKit. Impacted is confidentiality, integrity, and availability.

The weakness was presented 07/19/2021 by Ivan Fratric as HT212606 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2021-30797 since 04/13/2021. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for 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 07/28/2021). The advisory points out:

Processing maliciously crafted web content may lead to code execution

Upgrading to version 14.1.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

This issue was addressed with improved checks.

Type

Vendor

Name

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: 🔍

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Vector Complexity Authentication Confidentiality Integrity Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Unknown
CWE: Unknown
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒


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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Upgrade: Safari 14.1.2

04/13/2021 CVE assigned
07/19/2021 +97 days Advisory disclosed
07/19/2021 +0 days Countermeasure disclosed
07/23/2021 +4 days VulDB entry created
07/28/2021 +5 days VulDB last updateVendor: https://www.apple.com/

Advisory: HT212606
Researcher: Ivan Fratric
Status: Confirmed

CVE: CVE-2021-30797 (🔒)

Created: 07/23/2021 10:07
Updated: 07/28/2021 09:18
Changes: (1) source_cve_assigned
Complete: 🔍

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