CVE-2023-38889

An issue in Alluxio v.2.9.3 and before allows an attacker to execute arbitrary code via a crafted script to the username parameter of…

published August 15, 2023

CVSS
—
EPSS
1%
Percentile
64.7
In the wild
Unconfirmed
What it is

⚠️ An unsuspecting username can be your biggest enemy! An attacker could exploit this vulnerability in Alluxio versions 2.9.3 and earlier to execute arbitrary code just by sending a crafted script! Think of it as a chef who mistakenly follows an order for a dish that includes a hidden ingredient — the kitchen accepts whatever is on the slip without checking! If the chef isn’t careful, they could serve up a dish that brings diners to their knees instead of delighting them. If an attacker successfully exploits this vulnerability, they could run any code on the server, leading to a full compromise of sensitive data and potentially devastating consequences for the system's integrity. This could mean unauthorized access to data and even full server control!

Put simply

Think of it as a chef who mistakenly follows an order for a dish that includes a hidden ingredient — the kitchen accepts whatever is on the slip without checking! If the chef isn’t careful, they could serve up a dish that brings diners to their knees instead of delighting them. This vulnerability arises in the way Alluxio processes the username parameter through the lluxio.util.CommonUtils.getUnixGroups method. By injecting a malicious script, an attacker can execute arbitrary code on the server, bypassing any intended security measures.

What to do

If an attacker successfully exploits this vulnerability, they could run any code on the server, leading to a full compromise of sensitive data and potentially devastating consequences for the system's integrity. This could mean unauthorized access to data and even full server control! To mitigate this vulnerability, upgrade to Alluxio version 2.9.4 or later immediately. Additionally, ensure that all user inputs are validated and sanitized to prevent any harmful scripts from being executed. Regularly audit your code for similar issues to bolster security! You’ve got this! By taking these steps, you’ll be reinforcing your security and keeping your systems safe from sneaky attacks! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01077 · 64.7th percentile
Published
2023-08-15T00:00Z
EPSS history
Timeline
  • 15 AUG 00:00Z
    An issue in Alluxio v.2.9.3 and before allows an attacker to execute arbitrary code via a crafted script to the username parameter of…
    cvelistv5