Apple Safari up to 13.0.4 Javascript input validation

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$5k-$25k0.00

A vulnerability has been found in Apple Safari up to 13.0.4 (Web Browser) and classified as critical. This vulnerability affects some unknown processing of the component Javascript Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-20. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A custom URL scheme handling issue was addressed with improved input validation. This issue is fixed in Safari 13.0.5. Processing a maliciously crafted URL may lead to arbitrary javascript code execution.

The weakness was disclosed 10/28/2020 as HT210922. The advisory is available at support.apple.com. This vulnerability was named CVE-2020-9860 since 03/02/2020. The exploitation appears to be easy. 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 11/29/2020).

Upgrading to version 13.0.5 eliminates this vulnerability.

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VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

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

NVD Base Score: 5.4
NVD Vector: 🔒

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Safari 13.0.5

Timelineinfoedit

03/02/2020 CVE assigned
10/28/2020 +240 days Advisory disclosed
10/28/2020 +0 days VulDB entry created
11/29/2020 +32 days VulDB last update

Sourcesinfoedit

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

Advisory: HT210922
Status: Confirmed

CVE: CVE-2020-9860 (🔒)

Entryinfoedit

Created: 10/28/2020 02:02 PM
Updated: 11/29/2020 08:59 PM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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