CVE-2020-15123CWE-78

Command injection in codecov (npm package)

Critical · published July 20, 2020

CVSS v3.1
9.3
EPSS
4%
Percentile
90.0
In the wild
Unconfirmed
What it is

🚨 A sneaky command injection vulnerability lurks in the Codecov npm package before version 3.7.1! This means attackers could potentially manipulate commands in your build pipeline without you even realizing it. 🔥 Think of it like a restaurant where the chef takes orders from a customer without checking the menu — if the customer slips in a secret ingredient request, it could lead to a disastrous dish! An attacker could exploit this vulnerability to execute arbitrary commands in the context of your build process, leading to unauthorized access, data manipulation, or even complete system compromise. The consequences can be absolutely devastating if they manage to sneak in harmful commands!

Put simply

Think of it like a restaurant where the chef takes orders from a customer without checking the menu — if the customer slips in a secret ingredient request, it could lead to a disastrous dish! This command injection vulnerability arises when the Codecov upload method improperly sanitizes inputs, allowing backticks to be used for injection despite blocking some characters with a previous fix. This can be particularly dangerous during automated build processes where the inputs may not be closely monitored.

What to do

An attacker could exploit this vulnerability to execute arbitrary commands in the context of your build process, leading to unauthorized access, data manipulation, or even complete system compromise. The consequences can be absolutely devastating if they manage to sneak in harmful commands! Upgrade to Codecov version 3.7.1 or later immediately to mitigate this vulnerability. Additionally, review your build configurations to ensure no untrusted input can be executed. Regularly audit your dependencies to keep them secure! You've got this! By following these steps, you’ll secure your build pipeline and keep those sneaky attackers at bay! 🛡️

The record
Technical detail
CVSS v3.1
9.3 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.03805 · 90.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2020-07-20T17:20Z
EPSS history
Timeline
  • 20 JUL 17:20Z
    Command injection in codecov (npm package)
    cvelistv5