CVE-2018-5455CWE-565

A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior

published March 5, 2018

CVSS
—
EPSS
2%
Percentile
75.0
In the wild
Unconfirmed
What it is

⚠️ A cookie misstep could let an attacker bypass authentication entirely! In Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior, cookie parameters can be just digits, making brute-force attacks surprisingly simple. 🔥 Think of it like a restaurant where you order dessert just by telling the waiter a number—if they don't verify what that number means, anyone could walk in and claim any dessert off the menu! 🍰 If an attacker pulls this off, they could gain unauthorized access to critical device functions without breaking a sweat. This could lead to a cascade of mischief, including modifying settings or accessing sensitive information.

Put simply

Think of it like a restaurant where you order dessert just by telling the waiter a number—if they don't verify what that number means, anyone could walk in and claim any dessert off the menu! 🍰 This vulnerability stems from the reliance on unsanitized cookie parameters, allowing attackers to exploit predictable behavior through brute force methods, bypassing authentication and gaining control over the device functions.

What to do

If an attacker pulls this off, they could gain unauthorized access to critical device functions without breaking a sweat. This could lead to a cascade of mischief, including modifying settings or accessing sensitive information. To protect your systems, update to the latest version of the Moxa OnCell firmware. Additionally, implement rigorous validation and integrity checks for cookies to ensure only authorized access is granted. You can handle this! Patch up and reinforce those cookie checks, and you'll be a security superhero in no time! 🦸‍♂️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01561 · 75.0th percentile
Weakness
CWE-565 · Reliance on Cookies without Validation and Integrity Checking
Published
2018-03-05T17:00Z
EPSS history
Timeline
  • 05 MAR 17:00Z
    A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior
    cvelistv5