CVE-2021-25956 Improper User Access Control in "Dolibarr" Leads to Account Takeover

Medium 4.7 Published Updated

Admins can overwrite victim passwords by renaming users to existing logins, enabling complete account takeover in Dolibarr.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2021-25956?

CVE-2021-25956 is a medium-severity missing authorization vulnerability in Dolibarr Dolibarr Erp\/Crm, published on 17 Aug 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

In “Dolibarr” application, v3.3.beta1_20121221 to v13.0.2 have “Modify” access for admin level users to change other user’s details but fails to validate already existing “Login” name, while renaming the user “Login”. This leads to complete account takeover of the victim user. This happens since the password gets overwritten for the victim user having a similar login name.

Weakness: CWE-284

Which versions are affected by CVE-2021-25956?

3 open source packages ship an affected version, including dolibarr/dolibarr and dolibarr. It affects 2 products.

PackageAffectedFixed in
dolibarr/dolibarr PackagistFrom 3.3.beta114.0.0
dolibarr/dolibarr PackagistFrom 3.3.beta114.0.0
dolibarr BitnamiFrom 3.3.0-beta1 to 3.3.0-beta1None

Products include Dolibarr Dolibarr, Dolibarr Dolibarr Erp\/Crm.

How do I fix CVE-2021-25956?

Upgrade dolibarr/dolibarr to 14.0.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-25956 being exploited?

There is no known exploitation of CVE-2021-25956 in the wild and no public exploit code.

All Dolibarr Dolibarr Erp\/Crm vulnerabilities

Sources

Also known as BIT-dolibarr-2021-25956, GHSA-fjqg-w8g6-hhq8, UBUNTU-CVE-2021-25956.

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