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FIXME: directory traversal vulnerability in agent codepath #620

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May 24, 2024
Merged

FIXME: directory traversal vulnerability in agent codepath #620

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7 changes: 7 additions & 0 deletions agent/plugin/plugin_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,13 @@ func Load(ctx context.Context, config proto.Config) (plg *Plugin, err error) {
logger := zap.S().With("plugin", config.Name, "pver", config.Version, "psign", config.Signature)
logger.Info("plugin is loading...")
workingDirectory := path.Join(agent.WorkingDirectory, "plugin", config.Name)
patternDirectory := path.Join(agent.WorkingDirectory, "plugin", "*")
match, err := path.Match(patternDirectory, workingDirectory);
if match != true {
logger.Warn("invalid path & name for plugin: ", config.Name)
return
}

// for compatibility
os.Remove(path.Join(workingDirectory, config.Name+".stderr"))
os.Remove(path.Join(workingDirectory, config.Name+".stdout"))
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