Home » News » Researchers discovered vulnerability in Windows-client of Slack messenger

Researchers discovered vulnerability in Windows-client of Slack messenger

Specialists from Tenable company disovered vulnerability in Windows-version of corporate Slack messenger (version 3.3.7) that enables changing file upload destination and steal files, change them or add malware programs.

The problem is in implementation of the protocol handler “slack://” in the application. With the use of specially formed link, published in Slack-channel, attacker can modify client’s setting, for example, change folder for download and point to folder that he controls. If victim follows the link, all downloads will get on the attacker’s SMB-server.

After changing of the established by default folder for downloads attacker can only steal the document, but also implement in it malware code. If user opens such document, his device will be infected, explained specialist David Wells.

At the same time, for successful implementation of URL attacker will even not have to subscribe on Slack-channel – link can get in channel through RSS-feed.

“I can publish a post in popular society Reddit; Slack users from all over the world are subscribed on it. This publication will include web-link, that will redirect user on the malware slack:// and will change settings if clicking on it”, – says Wells.

As it is noted, in similar situation will be shown notification that link initiates Slack start, so attack will be impossible, if user will not provide his agreement.

Slack team have already released fixed Slack 3.4.0 version for Windows. All users are recommended to install updates ASAP.

Source: https://www.techrepublic.com

[Total: 0    Average: 0/5]
READ  Gmail was a first mail service that launched safety standards MTA-STS and TLS Reporting support

About Trojan Killer

Carry Trojan Killer Portable on your memory stick. Be sure that you’re able to help your PC resist any cyber threats wherever you go.

Check Also

Adwind attacks energy sector

RAT Trojan Adwind attacks US energy sector

Unknown attackers targeted infrastructure of the US electricity industry. With the help of malicious emails, …

Trojan Bolik masks under NordVPN

Bank Bolik Trojan masks itself under NordVPN

Doctor Web experts warned that attackers use copies of popular services sites to distribute Bolik …

Leave a Reply