Advisory Details

September 8th, 2022

(Pwn2Own) ConnMan wispr_portal_web_result wp_object Double Free Remote Code Execution Vulnerability

CVE ID	CVE-2022-32293
CVSS SCORE	6.3, AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AFFECTED VENDORS	ConnMan
AFFECTED PRODUCTS	ConnMan
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of ConnMan. Authentication is not required to exploit this vulnerability. The specific flaw exists within the wispr_portal_web_result method. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to execute code in the context of the ConnMan process. This vulnerability was demonstrated on a Tesla Model 3 during Pwn2Own 2022 Vancouver competition.
ADDITIONAL DETAILS	https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=72343929836de80727a27d6744c869dff045757c https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=416bfaff988882c553c672e5bfc2d4f648d29e8a
DISCLOSURE TIMELINE	2022-05-25 - Vulnerability reported to vendor 2022-09-08 - Coordinated public release of advisory 2023-09-20 - Advisory Updated
CREDIT	David BERARD and Vincent DEHORS from @Synacktiv

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