CVE-2017-9947 Path traversal in APOGEE PXC and TALON TC BACnet Automation Controllers All versions <V3.5
Remote attackers can exploit directory traversal to read file system structures on Siemens BACnet controllers via the web server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-9947?
CVE-2017-9947 is a medium-severity path traversal vulnerability in APOGEE PXC and TALON TC BACnet Automation Controllers All versions <V3.5, published on 23 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been identified in Siemens APOGEE PXC and TALON TC BACnet Automation Controllers in all versions <V3.5. A directory traversal vulnerability could allow a remote attacker with network access to the integrated web server (80/tcp and 443/tcp) to obtain information on the structure of the file system of the affected devices.
Which versions are affected by CVE-2017-9947?
It affects 4 products.
Products include Siemens Apogee Pxc Firmware, Siemens Apogee Pxc Modular Firmware, Siemens Talon Tc Compact Firmware, Siemens Talon Tc Modular Firmware.
How do I fix CVE-2017-9947?
No fix has been published for CVE-2017-9947 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2017-9947 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-9947 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in APOGEE PXC and TALON TC BACnet Automation Controllers All versions <V3.5
Sources
Also known as GHSA-m28r-jg2j-26cv.