Files
trufflehog/pkg/detectors/sqlserver/sqlserver.go
T
Alexandr Marchenko 60464da3ce proposal: SqlServer connection string detector (#867)
* sqlserver added to detectors.proto

* make protos

* boilerplate detector generated

* wireup

* initial
2022-10-26 07:46:13 -07:00

90 lines
2.3 KiB
Go

package sqlserver
import (
"context"
"database/sql"
"regexp"
"github.com/denisenkom/go-mssqldb/msdsn"
log "github.com/sirupsen/logrus"
"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
)
type Scanner struct{}
// Ensure the Scanner satisfies the interface at compile time.
var _ detectors.Detector = (*Scanner)(nil)
var (
// SQLServer connection string is a semicolon delimited set of case-insensitive parameters which may go in any order.
pattern = regexp.MustCompile("(?:\n|`|'|\"| )?((?:[A-Za-z0-9_ ]+=[^;$'`\"$]+;?){3,})(?:'|`|\"|\r\n|\n)?")
)
// Keywords are used for efficiently pre-filtering chunks.
// Use identifiers in the secret preferably, or the provider name.
func (s Scanner) Keywords() []string {
return []string{"sqlserver"}
}
// FromData will find and optionally verify SpotifyKey secrets in a given set of bytes.
func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (results []detectors.Result, err error) {
matches := pattern.FindAllStringSubmatch(string(data), -1)
for _, match := range matches {
params, _, err := msdsn.Parse(match[1])
if err != nil {
log.Debugf("sqlserver: unable to parse connection string '%s' because '%s'", match[1], err.Error())
continue
}
if params.Password == "" {
log.Debugf("sqlserver: skip connection string '%s' because it does not contain password", match[1])
continue
}
detected := detectors.Result{
DetectorType: detectorspb.DetectorType_SQLServer,
Raw: []byte(params.Password),
}
if verify {
verified, err := ping(params)
if err != nil {
log.Debugf("sqlserver: unable to verify '%s' because '%s'", params.URL(), err.Error())
} else {
detected.Verified = verified
}
}
results = append(results, detected)
}
return detectors.CleanResults(results), nil
}
var ping = func(config msdsn.Config) (bool, error) {
url := config.URL()
query := url.Query()
query.Set("dial timeout", "3")
query.Set("connection timeout", "3")
url.RawQuery = query.Encode()
conn, err := sql.Open("mssql", url.String())
if err != nil {
return false, err
}
err = conn.Ping()
if err != nil {
return false, err
}
err = conn.Close()
if err != nil {
log.Debugf("sqlserver: unable to close connection '%s' because '%s'", url.String(), err.Error())
}
return true, nil
}