{"id":"GHSA-6xp5-7rcx-xfgx","revision":"8dd345c2c62340209d413d00f99b1963","records":[{"revision":"8dd345c2c62340209d413d00f99b1963","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-6xp5-7rcx-xfgx","aliases":["CVE-2026-62252","GO-2026-6671"],"title":"Homer: Hardcoded Default Admin Password 'sipcapture' With No Forced Change on First Login","description":"### Summary\nOn every fresh Homer deployment using internal authentication, the bootstrap process automatically creates an `admin` account with the password `sipcapture` (stored as a legacy SHA-256 hex hash). There is no first-login forced-change mechanism. Any attacker who reaches the login endpoint immediately gains full administrative access.\n\n### Details\n**`config/config.go` lines 858-861:**\n```go\n// DefaultInternalAuthPasswordHash is the SHA-256 hex digest of the default\n// bootstrap password (cleartext: sipcapture).\nconst DefaultInternalAuthPasswordHash = \"883ffc1f37fd0fe542b0fb9740035c4383e7d976c411161d24e62edace280f90\"\n```\n\n**`coordinator/services/auth_bootstrap.go` lines 20-71:** `EnsureBootstrapAdminUser()` runs at startup. If no admin user exists, it inserts a row with `username=admin`, `password_hash=DefaultInternalAuthPasswordHash`. No `force_change`, no `first_login` flag, no expiry is set.\n\n**`coordinator/services/auth_bootstrap_test.go` line 114** confirms the plaintext:\n```go\nu, err := svc.Authenticate(ctx, \"admin\", \"sipcapture\")\n```\n\n**`passwordhash/password.go` lines 36-45:** Legacy SHA-256 hex hashes are accepted via `legacySHA256HexEqual`, so the default credential is functional on any deployment.\n\n### PoC\n```bash\n# Authenticate with default credentials — works on any fresh Homer deployment\ncurl -s -X POST http://<homer-host>/api/v3/auth \\\n  -H 'Content-Type: application/json' \\\n  -d '{\"username\":\"admin\",\"password\":\"sipcapture\"}'\n# Response: {\"token\":\"<admin-jwt>\",\"data\":{\"userGroup\":\"admin\"}}\n\n# Use the token to access all admin functionality\ncurl -H \"Authorization: Bearer <admin-jwt>\" http://<homer-host>/api/v3/users\n```\n\n### Impact\nUse of Hard-coded Credentials (CWE-798). Any attacker who can reach a freshly deployed Homer instance gains immediate full administrative access using the publicly documented default password, with no lockout, rate limiting, or forced password change required.\n\n### Fix\nRemove the hardcoded `DefaultInternalAuthPasswordHash` constant. Require operators to provide a hashed admin password in the configuration file. Alternatively, generate a random password on first startup, print it to stdout once, and immediately force a change on first login.\n\nIf possible, please apply for a CVE number when posting.","state":0,"publishedAt":"2026-10-07T16:12:02+00:00","modifiedAt":"2026-10-20T00:55:38.9095319+00:00","affected":[{"ecosystem":"Go","name":"github.com/sipcapture/homer-app","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.0.0-20260625091610-b2e942031ff8"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"CRITICAL"}],"references":["https://github.com/sipcapture/homer/security/advisories/GHSA-6xp5-7rcx-xfgx","https://github.com/sipcapture/homer/pull/838","https://github.com/sipcapture/homer/commit/b2e942031ff8cd7435a244ebef306ee97d16b809","https://github.com/sipcapture/homer","https://github.com/sipcapture/homer/releases/tag/11.0.283"],"sourceUrl":"https://github.com/advisories/GHSA-6xp5-7rcx-xfgx","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-6xp5-7rcx-xfgx","identifiers":["GHSA-6xp5-7rcx-xfgx","CVE-2026-62252","GO-2026-6671"]},"retained":false,"historicalAffected":[]}],"coverage":[]}