MOVEit Transfer Under Attack: Zero-Day Vulnerability Actively Being Exploited

A critical flaw in Progress Software’s in MOVEit Transfer managed file transfer application has come under widespread exploitation in the wild to take over vulnerable systems.

“An SQL injection vulnerability has been found in the MOVEit Transfer web application that could allow an unauthenticated attacker to gain unauthorized access to MOVEit Transfer’s database,” the company said.

“Depending on the database engine being used, an attacker may be able to infer information about the structure and contents of the database in addition to executing SQL statements that alter or delete database elements.”

According to Huntress and Rapid7, roughly 2,500 instances of MOVEit Transfer were exposed to the public internet as of May 31, 2023, a majority of them located in the U.S. Successful exploitation attempts culminate in the deployment of a web shell, a file named “Human2.aspx” in the “Wwwroot” directory that’s created via script with a randomized filename, to “Exfiltrate various data stored by the local MOVEit service.”

Threat intelligence firm GreyNoise said it “Observed scanning activity for the login page of MOVEit Transfer located at /human.aspx as early as March 3, 2023,” adding five different IP addresses have been detected “Attempting to discover the location of MOVEit installations.”

“While we don’t know the specifics around the group behind the zero day attacks involving MOVEit, it underscores a worrisome trend of threat actors targeting file transfer solutions,” Satnam Narang, senior staff research engineer at Tenable, said.

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