CVE-2021-33420

A deserialization issue discovered in inikulin replicator before 1.0.4 allows remote attackers to run arbitrary code via the fromSerializable function in…

Critical · published December 15, 2022

CVSS v3.1
9.8
EPSS
2%
Percentile
77.2
In the wild
Unconfirmed
What it is

🔥 A critical deserialization flaw in inikulin replicator could let attackers run arbitrary code with just a crafted input — yikes! Think of deserialization like a chef taking a delivery of ingredients without checking the quality — if the package contains something rotten, it spoils the whole dish! Here, an unscrupulous delivery could let attackers concoct their own recipes and serve up chaos. An attacker could exploit this vulnerability to execute any code on the server, potentially leading to complete system compromise. It's like allowing a stranger into your kitchen, where they could not only ruin meals but also take over the entire restaurant!

Put simply

Think of deserialization like a chef taking a delivery of ingredients without checking the quality — if the package contains something rotten, it spoils the whole dish! Here, an unscrupulous delivery could let attackers concoct their own recipes and serve up chaos. This deserialization issue occurs in the fromSerializable function of TypedArray objects, allowing remote attackers to manipulate data in a way that bypasses security controls and executes arbitrary code.

What to do

An attacker could exploit this vulnerability to execute any code on the server, potentially leading to complete system compromise. It's like allowing a stranger into your kitchen, where they could not only ruin meals but also take over the entire restaurant! Immediately upgrade inikulin replicator to version 1.0.4 or later to mitigate this vulnerability. Additionally, monitor your systems for any signs of unauthorized access and consider implementing additional input validation to prevent future exploits. You’ve got this! By taking these steps, you’ll be securing your environment like a pro! 🛡️

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
0.01715 · 77.2th percentile
Published
2022-12-15T00:00Z
EPSS history
Timeline
  • 15 DEC 00:00Z
    A deserialization issue discovered in inikulin replicator before 1.0.4 allows remote attackers to run arbitrary code via the fromSerializable function in…
    cvelistv5