Vulnerability identifier: #VU25493

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-6062

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
coTURN
Server applications / Other server solutions

Vendor: coTURN

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when web server parses POST requests. A remote attacker can send a specially crafted HTTP request and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

coTURN: 4.5.1.1

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External links
http://talosintelligence.com/vulnerability_reports/TALOS-2020-0985
http://github.com/coturn/coturn/blob/master/ChangeLog

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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.