Dropbox for Windows has an unfixed Zero-day vulnerability
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Researchers from security company Decoder have revealed a zero-day vulnerability in the Dropbox for Windows app.
The vulnerability is in the DropboxUpdater service for the software and is a local privilege escalation vulnerability which would allow attackers to overwrite files in the System directory. Once compromised the researchers were able to get a command-line shell with SYSTEM privileges.
The team had informed Dropbox of the vulnerability in September but after 90 days the company has yet to fix the issue.
In a statement Dropbox confirmed:
“We learned of this issue through our bug bounty program and will be rolling out a fix in the coming weeks,” a Dropbox spokesperson says, “this bug can only be leveraged in limited circumstances, and we haven’t received any reports of this vulnerability impacting our users.”
The attack also requires a local user, but could easily be used as part of a chain attack. Read more about the attack at BleepingComputer here.
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