mirrors/forgejo
1
0
Fork 0
mirror of https://codeberg.org/forgejo/forgejo.git synced 2025-10-31 06:21:11 +00:00
Code Issues Projects Releases Packages Wiki Activity

[v1.21] [GITEA] rework long-term authentication

Browse source 
- The current architecture is inherently insecure, because you can
construct the 'secret' cookie value with values that are available in
the database. Thus provides zero protection when a database is
dumped/leaked.
- This patch implements a new architecture that's inspired from: [Paragonie Initiative](https://paragonie.com/blog/2015/04/secure-authentication-php-with-long-term-persistence#secure-remember-me-cookies).
- Integration testing is added to ensure the new mechanism works.
- Removes a setting, because it's not used anymore.

(cherry picked from commit eff097448b)

[GITEA] rework long-term authentication (squash) add migration

Reminder: the migration is run via integration tests as explained
in the commit "[DB] run all Forgejo migrations in integration tests"

(cherry picked from commit 4accf7443c)
(cherry picked from commit 99d06e344ebc3b50bafb2ac4473dd95f057d1ddc)
(cherry picked from commit d8bc98a8f0)
(cherry picked from commit 6404845df9)
This commit is contained in:
Gusted 2023-06-03 15:21:40 +02:00 • committed by Earl Warren
commit 72bdd4f3b9
No known key found for this signature in database
GPG key ID: 0579CB2928A78A00
17 changed files with 365 additions and 154 deletions
Download patch file Download diff file Expand all files Collapse all files

50
modules/context/context_cookie.go
View file

@ -4,16 +4,14 @@
package context
import (
"crypto/sha256"
"encoding/hex"
"net/http"
"strings"
auth_model "code.gitea.io/gitea/models/auth"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/web/middleware"
"golang.org/x/crypto/pbkdf2"
)
const CookieNameFlash = "gitea_flash"
@ -46,41 +44,13 @@ func (ctx *Context) GetSiteCookie(name string) string {
return middleware.GetSiteCookie(ctx.Req, name)
}
// GetSuperSecureCookie returns given cookie value from request header with secret string.
func (ctx *Context) GetSuperSecureCookie(secret, name string) (string, bool) {
val := ctx.GetSiteCookie(name)
return ctx.CookieDecrypt(secret, val)
}
// CookieDecrypt returns given value from with secret string.
func (ctx *Context) CookieDecrypt(secret, val string) (string, bool) {
if val == "" {
return "", false
}
text, err := hex.DecodeString(val)
// SetLTACookie will generate a LTA token and add it as an cookie.
func (ctx *Context) SetLTACookie(u *user_model.User) error {
days := 86400 * setting.LogInRememberDays
lookup, validator, err := auth_model.GenerateAuthToken(ctx, u.ID, timeutil.TimeStampNow().Add(int64(days)))
if err != nil {
return "", false
return err
}
key := pbkdf2.Key([]byte(secret), []byte(secret), 1000, 16, sha256.New)
text, err = util.AESGCMDecrypt(key, text)
return string(text), err == nil
}
// SetSuperSecureCookie sets given cookie value to response header with secret string.
func (ctx *Context) SetSuperSecureCookie(secret, name, value string, maxAge int) {
text := ctx.CookieEncrypt(secret, value)
ctx.SetSiteCookie(name, text, maxAge)
}
// CookieEncrypt encrypts a given value using the provided secret
func (ctx *Context) CookieEncrypt(secret, value string) string {
key := pbkdf2.Key([]byte(secret), []byte(secret), 1000, 16, sha256.New)
text, err := util.AESGCMEncrypt(key, []byte(value))
if err != nil {
panic("error encrypting cookie: " + err.Error())
}
return hex.EncodeToString(text)
ctx.SetSiteCookie(setting.CookieRememberName, lookup+":"+validator, days)
return nil
}