CVE-2020-15591

fexsrv in F*EX (aka Frams' Fast File EXchange) before fex-20160919_2 allows eval injection (for unauthenticated remote code execution)

published March 17, 2022

CVSS
—
EPSS
4%
Percentile
90.6
In the wild
Unconfirmed
What it is

🚨 Unauthenticated remote code execution is lurking in F*EX! A crafty eval injection could let attackers run their own scripts—like a delivery service taking orders from anyone without checking IDs! 🔥 Think of it like a restaurant that lets customers place any order without verifying their identity. If someone claims to be the chef, they could serve up anything—from a delicious dish to something downright dangerous! An attacker could potentially execute arbitrary code on the server, gaining full control over the system. This means they could steal sensitive data, manipulate files, or even disrupt services entirely—absolutely devastating for any organization relying on this software!

Put simply

Think of it like a restaurant that lets customers place any order without verifying their identity. If someone claims to be the chef, they could serve up anything—from a delicious dish to something downright dangerous! This vulnerability allows eval injection in fexsrv, enabling attackers to execute arbitrary code remotely without any authentication. It's like giving a stranger access to your kitchen without a background check—never a good idea!

What to do

An attacker could potentially execute arbitrary code on the server, gaining full control over the system. This means they could steal sensitive data, manipulate files, or even disrupt services entirely—absolutely devastating for any organization relying on this software! Update to the latest version of F*EX (fex-20160919_2 or later) as soon as possible to mitigate this vulnerability. Additionally, regularly review and limit access to your systems to prevent unauthorized users from executing arbitrary commands. You've got this! With a quick patch and some vigilance, you can keep your systems safe and sound! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04058 · 90.6th percentile
Published
2022-03-17T15:39Z
EPSS history
Timeline
  • 17 MAR 15:39Z
    fexsrv in F*EX (aka Frams' Fast File EXchange) before fex-20160919_2 allows eval injection (for unauthenticated remote code execution)
    cvelistv5