CVE-2020-12265

The decompress package before 4.2.1 for Node.js is vulnerable to Arbitrary File Write via ../ in an archive member, when a symlink is used, because of…

published April 26, 2020

CVSS
—
EPSS
2%
Percentile
81.7
In the wild
Unconfirmed
What it is

⚠️ A sneaky directory traversal flaw can lead to arbitrary file writes! This vulnerability in the decompress package before version 4.2.1 for Node.js could let attackers sneak files into your system with just a clever archive. 🚀 Think of it like a sneaky delivery person who finds a way to drop off a package inside your house by using a side entrance that you didn’t lock. Instead of going through the front door, they take advantage of a back route to get in and leave something unwanted behind! If exploited, an attacker could write arbitrary files to your server, potentially overwriting critical files or even planting malicious scripts. This could lead to unauthorized access or system instability, placing your entire application at risk!

Put simply

Think of it like a sneaky delivery person who finds a way to drop off a package inside your house by using a side entrance that you didn’t lock. Instead of going through the front door, they take advantage of a back route to get in and leave something unwanted behind! This vulnerability allows attackers to utilize a symlink in an archive to perform directory traversal, enabling them to write files outside of the intended directory. It’s like bypassing the front desk of a hotel and accessing restricted areas!

What to do

If exploited, an attacker could write arbitrary files to your server, potentially overwriting critical files or even planting malicious scripts. This could lead to unauthorized access or system instability, placing your entire application at risk! Upgrade the decompress package to version 4.2.1 or later to patch this vulnerability. Additionally, review your file handling procedures to ensure that symlinks are properly managed and that malicious input is sanitized. You've got this! 🚀 With a quick patch, you'll have your application secured in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02116 · 81.7th percentile
Published
2020-04-26T16:46Z
EPSS history
Timeline
  • 26 APR 16:46Z
    The decompress package before 4.2.1 for Node.js is vulnerable to Arbitrary File Write via ../ in an archive member, when a symlink is used, because of…
    cvelistv5