CVE-2019-12736

JetBrains Ktor framework before 1.2.0-rc does not sanitize the username provided by the user for the LDAP protocol, leading to command injection

published October 2, 2019

CVSS
—
EPSS
2%
Percentile
82.5
In the wild
Unconfirmed
What it is

⚠️ A sneaky oversight in the JetBrains Ktor framework lets users pass unsanitized usernames through the LDAP protocol, opening the door to command injection! Think of it like a restaurant chef who accepts orders without checking for allergies — a surprise ingredient could lead to a disastrous meal! In this case, the Ktor framework is accepting risky commands wrapped in user input without any safety checks. An attacker could exploit this vulnerability to execute arbitrary commands on the server, potentially leading to unauthorized access and control. This means they could manipulate the system and intercept sensitive information, making it a serious concern for any application using Ktor.

Put simply

Think of it like a restaurant chef who accepts orders without checking for allergies — a surprise ingredient could lead to a disastrous meal! In this case, the Ktor framework is accepting risky commands wrapped in user input without any safety checks. This vulnerability arises from the lack of input sanitization for usernames provided via the LDAP protocol in versions of Ktor prior to 1.2.0-rc, allowing attackers to inject malicious commands.

What to do

An attacker could exploit this vulnerability to execute arbitrary commands on the server, potentially leading to unauthorized access and control. This means they could manipulate the system and intercept sensitive information, making it a serious concern for any application using Ktor. To protect your application, upgrade Ktor to version 1.2.0-rc or later immediately. Additionally, review your input validation practices to ensure all user inputs are properly sanitized. Regularly audit your dependencies for similar issues to stay ahead! You've got this! By following these steps, you'll secure your environment and fortify your application. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02220 · 82.5th percentile
Published
2019-10-02T18:48Z
EPSS history
Timeline
  • 02 OCT 18:48Z
    JetBrains Ktor framework before 1.2.0-rc does not sanitize the username provided by the user for the LDAP protocol, leading to command injection
    cvelistv5