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from the all-your-storage-are-belong-to-us dept.
Source: https://www.securityweek.com/flaw-gives-hackers-remote-access-files-stored-d-link-dns-320-devices
Researchers at Vietnam-based CyStack Security discovered the vulnerability and reported it to D-Link in mid-August. An advisory was released by the vendor roughly one month later, but it turned out that the security hole was actually fixed by mistake in April, when D-Link released version 2.06b01 of the firmware to address a weakness exploited by the Cr1ptT0r ransomware to infect D-Link NAS devices.
The flaw is tracked as CVE-2019-16057 and CyStack assigned it a CVSS score of 10. It affects D-Link DNS-320 devices with firmware version 2.05b10 and earlier.
CyStack's Nguyen Dang told SecurityWeek that the vulnerability can be exploited directly from the internet and he says there are currently at least 800 vulnerable devices that can be attacked from the web. Nguyen pointed out that all D-Link DNS-320 devices were vulnerable to attacks before the issue was patched in April.
The vulnerability has been described as a command injection issue present in the login module for the administration interface of the DNS-320.
CyStack Report: https://blog.cystack.net/d-link-dns-320-rce/
CyStack Security discovered a remote code execution vulnerability in the D-Link DNS-320 ShareCenter device which its version is lower or equal 2.05.B10 . By exploiting the vulnerability, a remote, unauthenticated attacker can access to all application commands with root permission. This device is a popular network storage device and interestingly, in the past, it was also reported that it contains a backdoor itself.
[...] D-Link team released a patch for this issue on 11/04/2019 [(April 11, 2019. --Ed.)]. According to their release notes, the patch is for login_mgr.cgi allows attackers pipe commands to the user.log. I don't know exactly what issue they found related to the flaw I'm addressing in this article, but the patch worked. They fixed it by type casting parameter port to Integer.
(Score: 3, Interesting) by DannyB on Wednesday September 25 2019, @03:00PM (4 children)
Two wonderful features
and
It sounds like the backdoor was in the past. So it was fixed. But now a new remote code execution vulnerability?
Hmmmm. Aren't backdoors on purpose? Whoever created the backdoor needed a new one, but now it should be disguised as a remote code execution vulnerability.
And remember what we're talking about here. An NAS device where everyone in a small group or office keeps files.
Who wants to be able to snoop through files on NAS devices?
If only there were some way of having an NSA without buying an off the shelf closed-source unit.
To transfer files: right-click on file, pick Copy. Unplug mouse, plug mouse into other computer. Right-click, paste.
(Score: 2) by HiThere on Wednesday September 25 2019, @06:05PM (1 child)
Was that typo at the end on purpose? I considered modding that post funny.
Javascript is what you use to allow unknown third parties to run software you have no idea about on your computer.
(Score: 2) by DannyB on Wednesday September 25 2019, @06:40PM
Genuine Typo. Not on purpose.
To transfer files: right-click on file, pick Copy. Unplug mouse, plug mouse into other computer. Right-click, paste.
(Score: 2) by driverless on Wednesday September 25 2019, @09:16PM (1 child)
It's not a remote code exec, it's an undocumented remote admin interface for the ISP's tech support staff.
(Score: 2) by DannyB on Wednesday September 25 2019, @09:28PM
Yes, I think that is exactly what it was intended as. Undocumented remote admin. But implemented or disguised as a vulnerability rather than a back door. They had been caught at having a back door previously. The discovery of a 2nd back door might set off alarm bells spooking potential
sheepcustomers.To transfer files: right-click on file, pick Copy. Unplug mouse, plug mouse into other computer. Right-click, paste.