CVE-2017-8411 Command injection in n/a
Attackers can execute arbitrary commands on D-Link DCS-1130 cameras via the email configuration interface, potentially compromising the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-8411?
CVE-2017-8411 is a high-severity command injection vulnerability in n/a, published on 2 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An issue was discovered on D-Link DCS-1130 devices. The device provides a user with the capability of setting a SMB folder for the video clippings recorded by the device. It seems that the POST parameters passed in this request (to test if email credentials and hostname sent to the device work properly) result in being passed as commands to a "system" API in the function and thus result in command injection on the device. If the firmware version is dissected using binwalk tool, we obtain a cramfs-root archive which contains the filesystem set up on the device that contains all the binaries. The library "libmailutils.so" is the one that has the vulnerable function "sub_1FC4" that receives the values sent by the POST request. If we open this binary in IDA-pro we will notice that this follows an ARM little endian format. The function sub_1FC4 in IDA pro is identified to be receiving the values sent in the POST request and the value set in POST parameter "receiver1" is extracted in function "sub_15AC" which is then passed to the vulnerable system API call. The vulnerable library function is accessed in "cgibox" binary at address 0x00023BCC which calls the "Send_mail" function in "libmailutils.so" binary as shown below which results in the vulnerable POST parameter being passed to the library which results in the command injection issue.
Weakness: CWE-77
Which versions are affected by CVE-2017-8411?
It affects 1 product.
Products include Dlink Dcs-1130 Firmware.
How do I fix CVE-2017-8411?
No fix has been published for CVE-2017-8411 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2017-8411 being exploited?
There is no known exploitation of CVE-2017-8411 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-36w9-jg9q-m4qx.