Denial of service in TP-Link Archer C50 V3 devices



Published: 2020-04-02
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-9375
CWE-ID CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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Archer C50 V3
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor TP-Link

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU26525

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-9375

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can use a specially crafted HTTP Header containing an unexpected Referer field and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Archer C50 V3: 171227


CPE2.3 External links

http://packetstormsecurity.com/files/156928/TP-Link-Archer-C50-V3-Denial-of-Service.html
http://thewhiteh4t.github.io/2020/02/27/CVE-2020-9375-TP-Link-Archer-C50-v3-Denial-of-Service.html
http://www.tp-link.com/in/support/download/archer-c50/v3/#Firmware

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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