CVE-2019-9677

The specific fields of CGI interface of some Dahua products are not strictly verified, an attacker can cause a buffer overflow by constructing malicious…

published September 18, 2019

CVSS
—
EPSS
1%
Percentile
66.4
In the wild
Unconfirmed
What it is

🚨 A crafty buffer overflow is hiding in the CGI interface of select Dahua products! An attacker can exploit this with just a few malicious packets — like slipping a too-large package into a mailbox that's not ready for it! 🔥 Think of a post office where the mailboxes are overflowing with oversized packages. If someone sends a package that's too big, it doesn't just jam the inbox; it can cause the whole system to crash! That's what happens when these vulnerable Dahua products receive crafted malicious packets. This vulnerability could allow an attacker to crash the system or potentially execute arbitrary code, leading to absolute chaos for anyone relying on these devices. Imagine the security cameras or other features suddenly going dark — a nightmare for surveillance!

Put simply

Think of a post office where the mailboxes are overflowing with oversized packages. If someone sends a package that's too big, it doesn't just jam the inbox; it can cause the whole system to crash! That's what happens when these vulnerable Dahua products receive crafted malicious packets. CVE-2019-9677 arises from insufficient validation of specific fields in the CGI interface of various Dahua products, enabling a buffer overflow through crafted packets sent to the device.

What to do

This vulnerability could allow an attacker to crash the system or potentially execute arbitrary code, leading to absolute chaos for anyone relying on these devices. Imagine the security cameras or other features suddenly going dark — a nightmare for surveillance! To shore up your defenses, ensure you upgrade to the latest firmware released after August 18, 2019, for all affected models: IPC-HDW1X2X, IPC-HFW1X2X, IPC-HDW2X2X, IPC-HFW2X2X, IPC-HDW4X2X, IPC-HFW4X2X, IPC-HDBW4X2X, IPC-HDW5X2X, IPC-HFW5X2X. Regularly check for updates and monitor your devices closely! You've got this! With a little diligence, you can secure your Dahua products and keep everything running smoothly! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01144 · 66.4th percentile
Published
2019-09-18T18:46Z
EPSS history
Timeline
  • 18 SEP 18:46Z
    The specific fields of CGI interface of some Dahua products are not strictly verified, an attacker can cause a buffer overflow by constructing malicious…
    cvelistv5