Schneider Electric U.motion Builder: sql injection flaw under attack

What is affected

Schneider Electric U.motion Builder is mostly run by companies, schools and public bodies, not on home computers. You are unlikely to have it yourself, but organisations that hold your data may. Breaches that start with flaws like this one are how personal data ends up leaked.

A SQL Injection vulnerability exists in U.motion Builder software which could cause unwanted code execution when an improper set of characters is entered.

What an attacker can do

This is a sql injection flaw. It lets an attacker read, change or delete records in the product's database. That often includes user accounts and stored passwords.

How it is reached

Over the internet or network

Access the attacker needs

No account needed

Does the victim have to do something?

No, works without the victim doing anything

What to do

1. At home: nothing to install. Keep your own devices updated and use a different password for every service, so that a breach at one organisation does not open your other accounts.
2. If you administer Schneider Electric U.motion Builder at work: apply the vendor's fix or mitigation now and review logs for signs of compromise, because the flaw was being exploited before it was listed.
3. If the product is past its support date and no fix exists, take it off the internet or retire it.

The impacted product is end-of-life and should be disconnected if still in use.

How urgent is it

CISA added this vulnerability to its Known Exploited Vulnerabilities catalogue on April 15, 2022, which means there is reliable evidence of attacks in the wild. US federal agencies must fix it by May 6, 2022, a deadline that has already passed. That deadline does not bind anyone else, but it shows how seriously the agency rates it.

The EPSS model estimates a 73% probability that this flaw will be exploited somewhere in the next 30 days. That is higher than 99.4% of all scored vulnerabilities.

Its CVSS severity score is 9.8 out of 10 (critical), as recorded in the US National Vulnerability Database.

Technical description

A SQL Injection (CWE-89) vulnerability exists in U.motion Builder software version 1.3.4 which could cause unwanted code execution when an improper set of characters is entered.