CVE-2021-31886CWE-170

A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All…

published November 9, 2021

CVSS
—
EPSS
3%
Percentile
87.5
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow is lurking in various APOGEE and Desigo systems! This issue arises from the FTP server's inability to validate the length of the “USER” command, creating a potential pathway for malicious code. 🔥 Think of it as a postal service that doesn’t check package sizes before accepting them. If they let through an oversized box, it could block the entire sorting facility, leading to chaos! An attacker could exploit this vulnerability to trigger a Denial-of-Service condition, effectively knocking your system offline. Even more alarming, they might gain the ability to run arbitrary code on affected devices, creating an absolute nightmare!

Put simply

Think of it as a postal service that doesn’t check package sizes before accepting them. If they let through an oversized box, it could block the entire sorting facility, leading to chaos! This vulnerability involves stack-based buffer overflows caused by improper length validation of the FTP server's 'USER' command, affecting various versions of APOGEE and Desigo products.

What to do

An attacker could exploit this vulnerability to trigger a Denial-of-Service condition, effectively knocking your system offline. Even more alarming, they might gain the ability to run arbitrary code on affected devices, creating an absolute nightmare! To protect your systems, ensure you're running updated versions of all affected components. Consider implementing strict input validation measures and regularly auditing your server configurations. Patching to the latest releases is key! You've got this! With the right updates and precautions, you’ll keep your systems safe and sound. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03049 · 87.5th percentile
Weakness
CWE-170 · Improper Null Termination
Published
2021-11-09T11:31Z
EPSS history
Timeline
  • 09 NOV 11:31Z
    A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All…
    cvelistv5