CVE-2020-13166

The management tool in MyLittleAdmin 3.8 allows remote attackers to execute arbitrary code because machineKey is hardcoded (the same for all customers'…

published May 19, 2020

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.6th percentile for exploit probability.

CVSS
—
EPSS
78%
Percentile
99.6
In the wild
Unconfirmed
What it is

⚠️ A hardcoded machineKey in MyLittleAdmin 3.8 is like having a universal key that fits every lock — and that’s a security risk waiting to happen! 🔑 Imagine a hotel where every guest uses the same key card to access their rooms. If anyone gets a hold of that key, they can waltz right in and rummage through your belongings! That’s essentially what’s happening here with the hardcoded machineKey in MyLittleAdmin's web.config. An attacker could exploit this vulnerability to run arbitrary code on the server, leading to a complete compromise of the site. That means they could alter sensitive data, install malware, or even take over the entire system — sounds terrifying, right?

Put simply

Imagine a hotel where every guest uses the same key card to access their rooms. If anyone gets a hold of that key, they can waltz right in and rummage through your belongings! That’s essentially what’s happening here with the hardcoded machineKey in MyLittleAdmin's web.config. This vulnerability arises because the machineKey, used for encrypting and validating cookies, is hardcoded in the web.config file. As a result, attackers can send serialized ASP code and execute it remotely, bypassing any security mechanisms in place.

What to do

An attacker could exploit this vulnerability to run arbitrary code on the server, leading to a complete compromise of the site. That means they could alter sensitive data, install malware, or even take over the entire system — sounds terrifying, right? To mitigate this risk, change the hardcoded machineKey to a unique value for each installation. Additionally, review your web.config settings and ensure that only necessary settings are exposed. Prioritize this in your next security audit! You've got this! By making these changes, you're stepping up as a security hero and locking down your server. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.77635 · 99.6th percentile
Published
2020-05-19T19:29Z
EPSS history
Timeline
  • 19 MAY 19:29Z
    The management tool in MyLittleAdmin 3.8 allows remote attackers to execute arbitrary code because machineKey is hardcoded (the same for all customers'…
    cvelistv5