CVE-2021-42887

In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm

published June 3, 2022

CVSS
—
EPSS
44%
Percentile
98.8
In the wild
Unconfirmed
What it is

⚠️ An unexpected login bypass is lurking in the TOTOLINK EX1200T! By sending a crafty request through formLoginAuth.htm, an attacker could waltz right in! Think of it like a bouncer at a club who has a secret backdoor access — if someone knows exactly where to push, they could stroll right past security without a ticket! If exploited, this vulnerability could allow an attacker to access sensitive configurations and admin controls without authentication — basically giving them the keys to manage your network settings. This could lead to unauthorized access, data leaks, or even total control over your device!

Put simply

Think of it like a bouncer at a club who has a secret backdoor access — if someone knows exactly where to push, they could stroll right past security without a ticket! This vulnerability allows attackers to bypass the authentication mechanism in TOTOLINK EX1200T by sending a specific, crafted request to the formLoginAuth.htm endpoint, effectively allowing unauthorized access to the device.

What to do

If exploited, this vulnerability could allow an attacker to access sensitive configurations and admin controls without authentication — basically giving them the keys to manage your network settings. This could lead to unauthorized access, data leaks, or even total control over your device! To remediate this issue, update your TOTOLINK EX1200T to the latest firmware version available. Regularly audit your network devices for access controls and ensure that strong passwords are used. Also, consider disabling remote management if not needed. 🛡️ You've got this! With these updates, you can keep your network secure and your data safe! 🔐💪

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.44291 · 98.8th percentile
Published
2022-06-03T11:40Z
EPSS history
Timeline
  • 03 JUN 11:40Z
    In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm
    cvelistv5