goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/updown.go multipart upload handler split part.FileName() on / but did not reject .., allowing an unauthenticated upload with filename .. to create a file outside the served tree. This issue is fixed in version 2.1.5.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
goshs-labs:goshs
References 2
https://github.com/goshs-labs/goshs/security/advisories/GHSA-wg2q-39h6-66x9
https://github.com/goshs-labs/goshs/security/advisories/GHSA-wg2q-39h6-66x9
https://github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb…
https://github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb54fa