CVE-2017-8330 Denial of service in n/a
A remote attacker can crash the miniupnpd process on Securifi Almond routers by sending a large payload to the NewInMessage SOAP parameter.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-8330?
CVE-2017-8330 is a medium-severity denial of service vulnerability in n/a, published on 18 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered on Securifi Almond, Almond+, and Almond 2015 devices with firmware AL-R096. The device provides a UPnP functionality for devices to interface with the router and interact with the device. It seems that the "NewInMessage" SOAP parameter passed with a huge payload results in crashing the process. If the firmware version AL-R096 is dissected using binwalk tool, we obtain a cpio-root archive which contains the filesystem set up on the device that contains all the binaries. The binary "miniupnpd" is the one that has the vulnerable function that receives the values sent by the SOAP request. If we open this binary in IDA-pro we will notice that this follows a MIPS little endian format. The function WscDevPutMessage at address 0x0041DBB8 in IDA pro is identified to be receiving the values sent in the SOAP request. The SOAP parameter "NewInMesage" received at address 0x0041DC30 causes the miniupnpd process to finally crash when a second request is sent to the same process.
Weakness: CWE-20
Which versions are affected by CVE-2017-8330?
It affects 3 products.
Products include Securifi Almond\+firmware, Securifi Almond 2015 Firmware, Securifi Almond Firmware.
How do I fix CVE-2017-8330?
No fix has been published for CVE-2017-8330 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-8330 being exploited?
There is no known exploitation of CVE-2017-8330 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-jfgg-vc2q-w48v.