CVE-2021-26560CWE-319

Cleartext transmission of sensitive information vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows…

Critical · published February 26, 2021

CVSS v3.1
9.0
EPSS
1%
Percentile
55.0
In the wild
Unconfirmed
What it is

🔥 A sneaky flaw in Synology's DiskStation Manager allows attackers to intercept sensitive info through unencrypted HTTP sessions! Think of it like sending a postcard with your personal information on it—anyone along the delivery route can read it! This vulnerability lets man-in-the-middle attackers spoof servers and peek at your data, just like a nosy neighbor eavesdropping on your conversations. If exploited, an attacker could intercept and manipulate sensitive information exchanged during the session, leading to a potential data breach or unauthorized access to your system. This is absolutely devastating for anyone relying on Synology's services to keep their data private and secure!

Put simply

Think of it like sending a postcard with your personal information on it—anyone along the delivery route can read it! This vulnerability lets man-in-the-middle attackers spoof servers and peek at your data, just like a nosy neighbor eavesdropping on your conversations. CVE-2021-26560 is a cleartext transmission vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) versions before 6.2.3-25426-3. It allows attackers to spoof servers and read sensitive information exchanged over unencrypted HTTP sessions.

What to do

If exploited, an attacker could intercept and manipulate sensitive information exchanged during the session, leading to a potential data breach or unauthorized access to your system. This is absolutely devastating for anyone relying on Synology's services to keep their data private and secure! Update your Synology DiskStation Manager immediately to version 6.2.3-25426-3 or later to close this critical vulnerability. Additionally, consider using HTTPS for all communication to enhance your security posture. Don't forget to review your system settings for any default configurations that may still be in use! You’ve got this! Follow these steps, and you'll be well on your way to securing your system! 🛡️

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00766 · 55.0th percentile
Weakness
CWE-319 · Cleartext Transmission of Sensitive Information
Published
2021-02-26T21:45Z
EPSS history
Timeline
  • 26 FEB 21:45Z
    Cleartext transmission of sensitive information vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows…
    cvelistv5