CVE-2023-33934CWE-444

Apache Traffic Server: Differential fuzzing for HTTP request parsing discrepancies

Critical · published August 9, 2023

CVSS v3.1
9.1
EPSS
2%
Percentile
75.1
In the wild
Unconfirmed
What it is

🔥 A critical input validation flaw in Apache Traffic Server could let attackers manipulate your data flow with alarming ease! ⚡ Think of Apache Traffic Server as a busy restaurant kitchen. If the chef doesn’t check the orders carefully, they might serve a dish that’s missing key ingredients or, worse, has something harmful — just like this flaw allows unwanted input to slip through unchecked. An attacker could exploit this vulnerability to send malicious data, potentially disrupting services or corrupting traffic management. In a worst-case scenario, it could lead to a complete system compromise, putting sensitive information at serious risk. This is absolutely devastating for any organization relying on Apache Traffic Server!

Put simply

Think of Apache Traffic Server as a busy restaurant kitchen. If the chef doesn’t check the orders carefully, they might serve a dish that’s missing key ingredients or, worse, has something harmful — just like this flaw allows unwanted input to slip through unchecked. This improper input validation vulnerability allows attackers to manipulate requests processed by Apache Traffic Server, potentially leading to arbitrary code execution or service disruption.

What to do

An attacker could exploit this vulnerability to send malicious data, potentially disrupting services or corrupting traffic management. In a worst-case scenario, it could lead to a complete system compromise, putting sensitive information at serious risk. This is absolutely devastating for any organization relying on Apache Traffic Server! Update Apache Traffic Server immediately to version 9.2.1 or later to mitigate this vulnerability. Implement rigorous input validation practices in your application to prevent similar issues in the future, and consider conducting regular security audits. 🛡️ You've got this! With a quick patch and some best practices, you'll keep your server safe and sound! 🚀

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.01563 · 75.1th percentile
Weakness
CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Published
2023-08-09T06:58Z
EPSS history
Timeline
  • 09 AUG 06:58Z
    Apache Traffic Server: Differential fuzzing for HTTP request parsing discrepancies
    cvelistv5