CVE-2019-20062

MFScripts YetiShare v3.5.2 through v4.5.4 might allow an attacker to reset a password by using a leaked hash (the hash never expires until used)

published February 10, 2020

CVSS
—
EPSS
2%
Percentile
75.2
In the wild
Unconfirmed
What it is

⚠️ A stale password hash is just sitting there waiting for trouble! With MFScripts YetiShare versions 3.5.2 to 4.5.4, an attacker could reset a user's password at any moment using a leaked hash that never expires! 🔥 Think of this as a party invitation that never gets revoked. Once it's out in the wild, anyone with that invite can crash the party anytime they want, leaving your guests vulnerable to unwanted guests! If an attacker gets hold of a leaked hash, they can reset any password tied to it, potentially locking users out or gaining unauthorized access to sensitive accounts. This could lead to a complete takeover of user accounts, exposing personal data and causing serious issues for your users.

Put simply

Think of this as a party invitation that never gets revoked. Once it's out in the wild, anyone with that invite can crash the party anytime they want, leaving your guests vulnerable to unwanted guests! This vulnerability allows an attacker to exploit a password reset mechanism by using a leaked hash which does not expire, enabling unauthorized password resets without the need for the original password.

What to do

If an attacker gets hold of a leaked hash, they can reset any password tied to it, potentially locking users out or gaining unauthorized access to sensitive accounts. This could lead to a complete takeover of user accounts, exposing personal data and causing serious issues for your users. Immediately update YetiShare to version 4.5.5 or later to patch this vulnerability. Additionally, consider implementing stricter password management policies and educate users about the importance of protecting their hashes. You've got this! Follow these steps, and you'll make your app a safer place in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01569 · 75.2th percentile
Published
2020-02-10T12:17Z
EPSS history
Timeline
  • 10 FEB 12:17Z
    MFScripts YetiShare v3.5.2 through v4.5.4 might allow an attacker to reset a password by using a leaked hash (the hash never expires until used)
    cvelistv5