Passwordstate, the enterprise password manager offered by Australian software developer Click Studios, was hacked earlier this week, exposing the passwords of an undisclosed number of its clients for approximately 28 hours. The hack was carried out through an upgrade feature for the password manager and potentially harvested the passwords of those who carried out upgrades.
On Friday, Click Studios issued an incident management advisory about the hack. It explained that the initial vulnerability was related to its upgrade director—which points the in-place update to the appropriate version of the software on the company’s content distribution network—on its website. When customers performed in-place upgrades on Tuesday and Wednesday, they potentially downloaded a malicious file, titled “moserware.secretsplitter.dll,” from a download network not controlled by Click Studios.
Once the malicious file was loaded, it set off a process that extracted information about the computer system as well as data stored in Passwordstate, including URLs, usernames and passwords. The information was then posted to the hackers’ content distribution network.According to the company, the vulnerability has been addressed and eliminated. Click Studios said that only customers who performed in-place updates between Tuesday, April 20 at 4:33 p.m. ET and Thursday, April 22 at 8:30 p.m. ET are believed to be affected. Customers who carried out manual upgrades of Passwordstate are not compromised.