CVE-2015-7939

Heap-based buffer overflow in Unitronics VisiLogic OPLC IDE before 9.8.09 allows remote attackers to execute arbitrary code via a long vlp filename

published January 9, 2016

CVSS
—
EPSS
5%
Percentile
92.1
In the wild
Unconfirmed
What it is

⚠️ A heap-based buffer overflow lurks in the Unitronics VisiLogic OPLC IDE, which means a remote attacker could craft a filename that spells trouble! 🔥 Think of this as a delivery truck that loads more packages than it can handle; if the load exceeds the truck's capacity, it spills out everywhere, causing chaos! In this case, the overflow allows unauthorized code execution. With the right long filename, an attacker could take control of the system, leading to anything from data manipulation to deploying malware. This can be especially concerning in automated environments where safety and security are paramount.

Put simply

Think of this as a delivery truck that loads more packages than it can handle; if the load exceeds the truck's capacity, it spills out everywhere, causing chaos! In this case, the overflow allows unauthorized code execution. This vulnerability arises from the way the VisiLogic OPLC IDE handles buffer allocation for filenames, allowing an attacker to overflow the allocated memory and execute arbitrary code remotely.

What to do

With the right long filename, an attacker could take control of the system, leading to anything from data manipulation to deploying malware. This can be especially concerning in automated environments where safety and security are paramount. To mitigate this risk, upgrade the VisiLogic OPLC IDE to version 9.8.09 or later immediately. Additionally, consider implementing network segmentation and strict access controls to limit exposure. You've got this! By taking these steps, you'll shore up your defenses and keep your systems safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04962 · 92.1th percentile
Published
2016-01-09T02:00Z
EPSS history
Timeline
  • 09 JAN 02:00Z
    Heap-based buffer overflow in Unitronics VisiLogic OPLC IDE before 9.8.09 allows remote attackers to execute arbitrary code via a long vlp filename
    cvelistv5