Advisory Details

June 21st, 2024

(Pwn2Own) Samsung Galaxy S23 instantgame Improper Input Validation Remote Code Execution Vulnerability

ZDI-24-828
ZDI-CAN-22441

CVE ID CVE-2023-42580
CVSS SCORE 8.8, AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Samsung
AFFECTED PRODUCTS Galaxy S23
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Samsung Galaxy S23 smartphones. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the InstantPlaysUrlUtil class. The issue results from a logical error when checking the safety of URIs. An attacker can leverage this vulnerability to execute code in the context of the current user.

ADDITIONAL DETAILS Samsung has issued an update to correct this vulnerability. More details can be found at:
https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=12
DISCLOSURE TIMELINE
  • 2023-11-09 - Vulnerability reported to vendor
  • 2024-06-21 - Coordinated public release of advisory
  • 2024-08-15 - Advisory Updated
CREDIT @_s_n_t of @pentestltd
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