Salesloft Drift compromised en masse, impacting all third-party integrations

Salesloft Drift customers are compromised in a much more expansive downstream attack spree than previously thought, potentially ensnaring any user that integrated the AI chat agent platform to another service.

“We’re telling organizations to treat any Drift integration into any platform as potentially compromised, so that increases the scope of victims,” Mandiant Consulting CTO Charles Carmakal told CyberScoop. This expanded attack radius includes Google Workspace customers that integrated Salesloft Drift into their instances. Victims have been notified that Google has found evidence of compromise.

Freshly uncovered evidence proves the threat actors, which Google tracks as UNC6395, didn’t just hit Salesforce customers who used Salesloft Drift, as Salesloft claimed Tuesday. 

“This just really blows wide open the scope here,” said Austin Larsen, principal threat analyst at Google Threat Intelligence Group.

Salesloft Drift provides integrations with 58 third-party tools for customer relationship management, automation, analytics, sales, communications and support, according to a third-party integration guide the vendor updated last month.

Salesloft updated its security blog to confirm that impact is much more severe and widespread. The company said it’s working with Mandiant, Google Cloud’s incident response division, and cyber insurer Coalition to assist in an ongoing investigation.

The sales engagement platform, a variant of CRM, is now recommending all Drift customers who manage connections to third-party applications via API key to revoke the existing key and rotate to a new key. Salesloft, which acquired Drift in February 2024, did not respond to a request for comment. 

In response to the widening security incident, Salesforce said late Wednesday it disabled the connection between Drift and Salesforce, rendering those integrations defunct. Salesforce declined to answer questions and maintains the issue does not involve a vulnerability in the Salesforce platform.

While the number of victims has grown, Google is sticking to the estimates it shared Tuesday, reiterating that more than 700 organizations are potentially impacted. Yet, it’s clear researchers are still working to identify all potential paths of compromise. 

“We’ve seen evidence of other platforms that were impacted as well,” Carmakal said.

The exposure could also involve former Drift customers. Mandiant identified one victim that may have been a former Drift customer, but researchers are still working to confirm those details. 

GTIG said the financially motivated threat group UNC6395 has also retrieved OAuth tokens for multiple services, including some that allowed it to “access email from a very small number of Google Workspace accounts.” The attackers primarily sought to steal credentials to compromise other systems connected to initial victims, as it specifically searched for Amazon Web Services access keys, virtual private network credentials and Snowflake credentials.

The root cause of the attacks, specifically how UNC6395 gained initial access to Salesloft Drift, remains unconfirmed. Researchers are also working to determine the full extent of the compromise within Salesloft Drift’s infrastructure.

“We are working with Salesloft Drift to investigate the root cause of what occurred and then it’ll be up to them to publish that,” Carmakal said. “There will be a lot more tomorrow, and the next day, and the next day.”