Vulnerability identifier: #VU46006
Vulnerability risk: Medium
CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Apple Safari
Client/Desktop applications /
Web browsers
Vendor: Apple Inc.
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to insufficient validation of user-supplied input in the Web Share API. A remote attacker can trick a victim to share a message and gain unauthorized access to sensitive information on the system, such as local files.
Note: This vulnerability affects iOS (13.4.1, 13.6), macOS Mojave 10.14.16 with Safari 13.1 (14609.1.20.111.8) and on macOS Catalina 10.15.5 with Safari 13.1.1 (15609.2.9.1.2).
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
Apple Safari: 13.1 - 13.1.1
External links
http://blog.redteam.pl/2020/08/stealing-local-files-using-safari-web.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.