Apple Safari up to 14.0.2 WebRTC redirect

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple Safari up to 14.0.2 and classified as problematic. This affects an unknown part of the component WebRTC. Executing a manipulation can lead to redirect. This vulnerability is tracked as CVE-2021-1799. The attack is only possible within the local network. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple Safari up to 14.0.2 (Web Browser) and classified as problematic. This vulnerability affects an unknown code of the component WebRTC. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 02/01/2021 by Gregory Vishnepolsky and Ben Seri as confirmed advisory (Website). This vulnerability was named CVE-2021-1799 since 12/08/2020. The exploitation appears to be easy. The attack needs to be initiated within the local network. A single authentication is needed for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1204.001.

The vulnerability scanner Nessus provides a plugin with the ID 241427 (RHEL 7 : webkitgtk4 (RHSA-2025:10364)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 14.0.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (241427). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Redirect
CWE: CWE-601
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 241427
Nessus Name: RHEL 7 : webkitgtk4 (RHSA-2025:10364)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Safari 14.0.3

Timelineinfo

12/08/2020 🔍
02/01/2021 +55 days 🔍
02/01/2021 +0 days 🔍
04/03/2021 +61 days 🔍
07/09/2025 +1558 days 🔍

Sourcesinfo

Vendor: apple.com

Researcher: Gregory Vishnepolsky, Ben Seri
Status: Confirmed

CVE: CVE-2021-1799 (🔍)
GCVE (CVE): GCVE-0-2021-1799
GCVE (VulDB): GCVE-100-172372

Entryinfo

Created: 04/03/2021 12:42
Updated: 07/09/2025 11:53
Changes: 04/03/2021 12:42 (35), 04/09/2021 16:10 (9), 07/09/2025 11:53 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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