#VU73155 Use-after-free in Drachtio Server - CVE-2022-45474

Vulnerability identifier: #VU73155

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-45474

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drachtio Server
Server applications / Conferencing, Collaboration and VoIP solutions

Vendor: drachtio

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the event_cb() function in request-handler.cpp. A remote attacker can send a specially crafted request to the server, trigger a use-after-free error and execute arbitrary code.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Drachtio Server: 0.0.4 rc2 - 0.8.17

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External links
https://github.com/drachtio/drachtio-server/issues/240
https://github.com/drachtio/drachtio-server/commit/860f025468feb31c43227153d8fb3f34210a522e

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Q & A

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.