CVE-2021-32563

An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2

published May 11, 2021

CVSS
—
EPSS
3%
Percentile
87.6
In the wild
Unconfirmed
What it is

⚠️ A simple command-line argument could lead to unexpected program execution! This issue in Thunar could have attackers riding your script coattails without a second thought! Think of it like a chef who hands a kitchen tool to an unknown guest based solely on the ingredient they brought — no questions asked. If that guest had a sinister recipe, it could lead to a culinary disaster! If exploited, this vulnerability could allow an attacker to execute arbitrary code on your system just by tricking the Thunar file manager into handling a regular file. The consequences could range from minor annoyances to complete system compromise, depending on the attacker's intentions.

Put simply

Think of it like a chef who hands a kitchen tool to an unknown guest based solely on the ingredient they brought — no questions asked. If that guest had a sinister recipe, it could lead to a culinary disaster! Thunar, prior to versions 4.16.7 and 4.17.2, fails to confirm actions when a regular file is passed as a command-line argument, leading to untrusted program execution based on the file type. This behavior opens the door to potential code execution exploits.

What to do

If exploited, this vulnerability could allow an attacker to execute arbitrary code on your system just by tricking the Thunar file manager into handling a regular file. The consequences could range from minor annoyances to complete system compromise, depending on the attacker's intentions. To mitigate this, update Thunar to at least version 4.16.7 or 4.17.2 immediately. Regularly review your installed packages to ensure you’re not running vulnerable versions. Consider implementing user confirmation prompts where possible to enhance security practices. You've got this! Stay vigilant and keep your systems updated to maintain your security hero status! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03076 · 87.6th percentile
Published
2021-05-11T00:00Z
EPSS history
Timeline
  • 11 MAY 00:00Z
    An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2
    cvelistv5