Description

goshs is a SimpleHTTPServer written in Go. Prior to 2.0.0-beta.4, goshs enforces the documented per-folder .goshs ACL/basic-auth mechanism for directory listings and file reads, but it does not enforce the same authorization checks for state-changing routes. An unauthenticated attacker can upload files with PUT, upload files with multipart POST /upload, create directories with ?mkdir, and delete files with ?delete inside a .goshs-protected directory. By deleting the .goshs file itself, the attacker can remove the folder's auth policy and then access previously protected content without credentials. This results in a critical authorization bypass affecting confidentiality, integrity, and availability. This vulnerability is fixed in 2.0.0-beta.4.

Weaknesses 1

Affected Products 4

References 3

• github.com https://github.com/patrickhener/goshs/commit/f212c4f4a126556bab008f79758e21a839ef2c0f
  Patch
• github.com https://github.com/patrickhener/goshs/releases/tag/v2.0.0-beta.4
  ProductRelease Notes
• github.com https://github.com/patrickhener/goshs/security/advisories/GHSA-wvhv-qcqf-f3cx
  ExploitMitigationVendor Advisory

Remediation

• github.com https://github.com/patrickhener/goshs/commit/f212c4f4a126556bab008f79758e21a839ef2c0f
  Patch