CVE-2020-9374

published 2020-02-24

CVE-2020-9374: On TP-Link TL-WR849N 0.9.1 4.16 devices, a remote command execution vulnerability in the diagnostics area can be exploited when an attacker sends specific…

Priority P1 88 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

ITW EXPLOIT VulnCheck KEV

On TP-Link TL-WR849N 0.9.1 4.16 devices, a remote command execution vulnerability in the diagnostics area can be exploited when an attacker sends specific shell metacharacters to the panel's traceroute feature.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
tp-link	tl-wr849n_firmware	—	—

Detection & IOCs extracted from sources · hover to see the quote

• · The exploit targets the default gateway IP 192.168.0.1; detection rules using this IP will only apply to LAN-side/local network traffic and will not fire on routed/internet traffic. Adjust rules to match the management interface IP of deployed TP-Link devices. ↗
• · The exploit requires valid credentials (Base64-encoded Authorization cookie). Unauthenticated exploitation is not demonstrated; ensure credential theft or default credential use is also monitored as a precursor. ↗
• · Affected version is specifically TL-WR849N 0.9.1 4.16; detection should be scoped or annotated accordingly, as other firmware versions may not be vulnerable. ↗

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

vulncheck 9.8 CRITICAL

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