PlayStation: Use-after-free in setsockopt IPV6_2292PKTOPTIONS (CVE-2020-7457)

2022-01-0422:00:37

theflow0

hackerone.com

$10000

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.204 Low

EPSS

Percentile

95.6%

JSON

The PS5 is vulnerable to https://hackerone.com/reports/826026 which easily grants kernel access to an attacker. This vulnerability had been reported by me for the PS4 2 years ago when the PS5 did not yet exist, thus this should be considered as a new report and not a duplicate.

I was able to use this vulnerability in conjunction with the bd-j exploit chain to gain kernel access.

See https://www.freebsd.org/security/advisories/FreeBSD-SA-20:20.ipv6.asc for more details.