CVE-2022-4498

A vulnerable HTTP Basic Authentication process in TP-Link routers, Archer C5 and WR710N-V1, is susceptible to either a DoS or an arbitrary code execution via any interface.

Critical · published January 11, 2023

CVSS v3.1
9.8
EPSS
2%
Percentile
79.4
In the wild
Unconfirmed
What it is

🚨 A crafted packet is all it takes to topple the httpd service in TP-Link routers like Archer C5 and WR710N-V1! 🔥 Think of it like a delivery driver slipping a fake package through the wrong door, causing a cascade of confusion and chaos in your network. The crafted packet tricks the system, leading to a heap overflow that can crash the service or let the attacker execute their own code. An attacker could crash the router’s httpd process, effectively knocking your network offline, or worse, run their own arbitrary code. This could lead to unauthorized access and control over your network, resulting in potentially devastating consequences for your data and privacy.

Put simply

Think of it like a delivery driver slipping a fake package through the wrong door, causing a cascade of confusion and chaos in your network. The crafted packet tricks the system, leading to a heap overflow that can crash the service or let the attacker execute their own code. This vulnerability arises from a heap overflow in the httpd service of TP-Link routers when they improperly handle HTTP Basic Authentication requests, allowing attackers to exploit memory management flaws to execute arbitrary code or cause denial of service.

What to do

An attacker could crash the router’s httpd process, effectively knocking your network offline, or worse, run their own arbitrary code. This could lead to unauthorized access and control over your network, resulting in potentially devastating consequences for your data and privacy. Immediately patch your TP-Link routers running the affected versions to the latest firmware. Regularly check for updates and consider disabling unnecessary features to minimize exposure. Don’t forget to implement strong authentication practices! You’ve got this! Follow these steps, and you’ll reinforce your network security in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01887 · 79.4th percentile
Published
2023-01-11T20:38Z
EPSS history
Timeline
  • 11 JAN 20:38Z
    A vulnerable HTTP Basic Authentication process in TP-Link routers, Archer C5 and WR710N-V1, is susceptible to either a DoS or an arbitrary code execution via any interface.
    cvelistv5