NetExec is a network execution tool. Prior to version 1.5.1, the module spider_plus improperly creates the output file and folder path when saving files from SMB shares. It does not take into account that it is possible for Linux SMB shares to have path traversal characters such as `../` in them.
An attacker can craft a filename in an SMB share that includes these characters, which when spider_plus crawls and downloads, can write or overwrite arbitrary files. The issue is patched in v1.5.1. As a workaround, do not run spider_plus with DOWNLOAD=true against targets.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://github.com/Pennyw0rth/NetExec/commit/7d027f2774d0520b322d60f9c99b9ab3ed…
security-advisories@github.com
https://github.com/Pennyw0rth/NetExec/issues/1120
security-advisories@github.com
https://github.com/Pennyw0rth/NetExec/pull/1121
security-advisories@github.com
https://github.com/Pennyw0rth/NetExec/security/advisories/GHSA-fccr-6qm2-7h27
security-advisories@github.com