CVE-2018-13043

scripts/grep-excuses.pl in Debian devscripts through 2.18.3 allows code execution through unsafe YAML loading because YAML::Syck is used without a…

published July 1, 2018

CVSS
—
EPSS
2%
Percentile
84.4
In the wild
Unconfirmed
What it is

⚠️ A little YAML can lead to big trouble! In Debian devscripts up to version 2.18.3, unsafe YAML loading opens the door to code execution — like leaving the back door unlocked for anyone to stroll in! 🔓 Think of it like a restaurant that skips verifying the ingredients for their dishes. If a recipe calls for safe items but someone sneaks in something hazardous, the whole meal could be poisoned! This vulnerability allows attackers to tamper with the data and execute harmful code, all because the YAML parser wasn't configured correctly. An attacker could exploit this oversight to run arbitrary code on your system, potentially compromising your entire environment. This could lead to unauthorized access, data leaks, or even system tampering — a scenario that could be absolutely devastating! ⚠️

Put simply

Think of it like a restaurant that skips verifying the ingredients for their dishes. If a recipe calls for safe items but someone sneaks in something hazardous, the whole meal could be poisoned! This vulnerability allows attackers to tamper with the data and execute harmful code, all because the YAML parser wasn't configured correctly. This vulnerability arises from using YAML::Syck without proper configuration to prevent unintended object blessing, allowing malicious YAML code to execute when processed.

What to do

An attacker could exploit this oversight to run arbitrary code on your system, potentially compromising your entire environment. This could lead to unauthorized access, data leaks, or even system tampering — a scenario that could be absolutely devastating! ⚠️ To secure your systems, make sure to upgrade Debian devscripts to a version higher than 2.18.3. Additionally, implement secure YAML loading practices to prevent such exploits in the future. You can tackle this! By following these steps, you'll fortify your defenses against this sneaky vulnerability! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02476 · 84.4th percentile
Published
2018-07-01T22:00Z
EPSS history
Timeline
  • 01 JUL 22:00Z
    scripts/grep-excuses.pl in Debian devscripts through 2.18.3 allows code execution through unsafe YAML loading because YAML::Syck is used without a…
    cvelistv5