CVE-2020-10888 Auth bypass in Archer A7

Medium 5.9 Published Updated

Remote attackers can bypass authentication during initial setup to establish SSH port forwarding and escalate privileges on TP-Link Archer A7 routers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-10888?

CVE-2020-10888 is a medium-severity authentication bypass vulnerability in TP-Link Archer A7, published on 25 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

This vulnerability allows remote attackers to bypass authentication on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SSH port forwarding requests during initial setup. The issue results from the lack of proper authentication prior to establishing SSH port forwarding rules. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the WAN interface. Was ZDI-CAN-9664.

Weakness: CWE-287

Which versions are affected by CVE-2020-10888?

It affects 1 product.

Products include Tp-Link Ac1750 Firmware.

How do I fix CVE-2020-10888?

No fix has been published for CVE-2020-10888 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-10888 being exploited?

There is no known exploitation of CVE-2020-10888 in the wild and no public exploit code.

Sources

Also known as GHSA-qvc8-7wwv-2g2h.

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