CVE-2023-5391CWE-502

A CWE-502: Deserialization of untrusted data vulnerability exists that could allow an attacker to execute arbitrary code on the targeted system by sending a…

Critical · published October 4, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
60.0
In the wild
Unconfirmed
What it is

🔥 An attacker needs only to send a specially crafted packet to exploit this vulnerability, potentially executing arbitrary code on the target system! Think of this vulnerability like a restaurant that serves food without checking the ingredients. If a sneaky diner sends in a fake order, they could receive a dish laced with all sorts of surprises, wreaking havoc in the kitchen! The consequences could be absolutely devastating — an attacker could take full control of the system, manipulate data, or deploy malicious software. This is not just a breach; it could lead to data loss or a complete system takeover, putting sensitive information and services at serious risk.

Put simply

Think of this vulnerability like a restaurant that serves food without checking the ingredients. If a sneaky diner sends in a fake order, they could receive a dish laced with all sorts of surprises, wreaking havoc in the kitchen! CVE-2023-5391 is a deserialization vulnerability that allows an attacker to execute arbitrary code by sending untrusted data to the affected application. This flaw enables unauthorized actions that could compromise system integrity and security.

What to do

The consequences could be absolutely devastating — an attacker could take full control of the system, manipulate data, or deploy malicious software. This is not just a breach; it could lead to data loss or a complete system takeover, putting sensitive information and services at serious risk. To mitigate this, ensure your application is updated to the latest version that addresses this issue. Validate and sanitize all input data before processing it. Implement strict controls on deserialization processes to prevent untrusted data from being executed. You’ve got this! Follow these steps, and you’ll secure your application against this nasty vulnerability 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
0.00923 · 60.0th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2023-10-04T18:13Z
EPSS history
Timeline
  • 04 OCT 18:13Z
    A CWE-502: Deserialization of untrusted data vulnerability exists that could allow an attacker to execute arbitrary code on the targeted system by sending a…
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