openhole exposes localhost to the internet in one command. In 0.1.1 and earlier, openhole-server in internal/server/public_proxy.go forwarded r.URL.Path instead of preserving the original request target with r.URL.EscapedPath(), allowing percent encoded dot segments %2e and separators %2f to reach tunneled local services as ../ and / for path traversal. This issue is fixed in version 0.1.2.
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
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
bablilayoub:openhole
References 3
https://github.com/bablilayoub/openhole/commit/a28c27adde2a7ed0c347b730c8707208…
security-advisories@github.com
https://github.com/bablilayoub/openhole/releases/tag/v0.1.2
security-advisories@github.com
https://github.com/bablilayoub/openhole/security/advisories/GHSA-fh2f-xfxc-q9cc
security-advisories@github.com