PT-2020-20809 · Apple · Apple Macos

Insu_Yun_En + 2 · Published 2020-05-28 · Updated 2022-03-31 · CVE-2020-9856

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions macOS versions prior to 10.15.5

Description The issue allows an application to potentially gain elevated privileges due to a heap-based buffer overflow vulnerability in the Core Virtual Machine Service. This vulnerability was demonstrated in a real-world scenario at Pwn2Own.

Recommendations For versions prior to 10.15.5, update to macOS Catalina 10.15.5 to resolve the issue.

Exploit

Fix

Related Identifiers

CVE-2020-9856

ZDI-20-680

Affected Products

Apple Macos

References · 5

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/osx/browser/safari_in_operator_side_effect.rb · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-9856 · Security Note
• https://support.apple.com/HT211170 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-20-680 · Security Note
• https://osv.dev/vulnerability/CVE-2020-9856 · Vendor Advisory