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tracee: skip golang plugin for static binaries #3244

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merged 1 commit into from Jun 22, 2023
Merged

tracee: skip golang plugin for static binaries #3244

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30 changes: 30 additions & 0 deletions pkg/signatures/signature/signature.go
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Expand Up @@ -2,6 +2,7 @@ package signature

import (
"bytes"
"debug/elf"
"fmt"
"io/fs"
"os"
Expand Down Expand Up @@ -58,6 +59,11 @@ func Find(target string, partialEval bool, signaturesDir string, signatures []st
func findGoSigs(dir string) ([]detect.Signature, error) {
var res []detect.Signature

if isBinaryStatic() {
logger.Warnw("The tracee static can't load golang signatures. Skipping ...")
return res, nil
}

errWD := filepath.WalkDir(dir,
func(path string, d fs.DirEntry, err error) error {
if err != nil {
Expand Down Expand Up @@ -188,3 +194,27 @@ func isRegoFile(name string) bool {
func isHelper(name string) bool {
return strings.HasSuffix(name, "helpers.rego")
}

func isBinaryStatic() bool {
exePath, err := os.Executable()
if err != nil {
logger.Errorw("Error getting tracee executable path", "error", err)
return false
}

loadedObject, err := elf.Open(exePath)
if err != nil {
logger.Errorw("Error opening tracee executable", "error", err)
return false
}

defer func() {
if err = loadedObject.Close(); err != nil {
logger.Errorw("Error closing file", "error", err)
}
}()

_, err = loadedObject.DynamicSymbols()

return err != nil
}