CVE-2017-12313 Path traversal in Cisco Network Academy Packet Tracer
Local attackers can execute arbitrary code with SYSTEM privileges via DLL hijacking in Cisco Packet Tracer if a user runs the installer from a directory containing a malicious DLL.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-12313?
CVE-2017-12313 is a medium-severity path traversal vulnerability in Cisco Network Academy Packet Tracer, published on 16 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An untrusted search path (aka DLL Preload) vulnerability in the Cisco Network Academy Packet Tracer software could allow an authenticated, local attacker to execute arbitrary code via DLL hijacking if a local user with administrative privileges executes the installer in the current working directory where a crafted DLL has been placed by an attacker. The vulnerability is due to incomplete input validation of path and file names of a DLL file before it is loaded. An attacker could exploit this vulnerability by creating a malicious DLL file and installing it in a specific system directory. A successful exploit could allow the attacker to execute commands on the underlying Microsoft Windows host with privileges equivalent to the SYSTEM account. An attacker would need valid user credentials to exploit this vulnerability.
Which versions are affected by CVE-2017-12313?
It affects 1 product.
Products include Cisco Packet Tracer.
How do I fix CVE-2017-12313?
No fix has been published for CVE-2017-12313 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-2017-12313 being exploited?
There is no known exploitation of CVE-2017-12313 in the wild and no public exploit code.
Other vulnerabilities in Cisco Network Academy Packet Tracer
Sources
Also known as GHSA-7j6x-crqm-f55c.