Closed dwertent closed 8 months ago
PR Description updated to latest commit (https://github.com/kubescape/node-agent/commit/5192b5a423ec2265bf023058fecce19e92270f3e)
⏱️ Estimated effort to review [1-5] | 2, because the changes are straightforward and localized to specific functionalities, but require a good understanding of the context and the impact of these changes on the system's behavior. |
🧪 Relevant tests | Yes |
🔍 Possible issues | Possible Bug: Changing the log level from Debug to Info in `cache.go` might unintentionally flood the logs with information that was previously deemed too verbose for normal operation. Consider the impact on log file sizes and readability. |
Logic Change: In `r1000_exec_from_malicious_source.go`, changing the check from an exact path to a directory path could potentially broaden the scope of what is considered a malicious source, possibly leading to false positives. Ensure this change aligns with the intended behavior of rule R1000. | |
🔒 Security concerns | No |
Category | Suggestions |
Enhancement |
Adjust the logging level to match the significance of the event.___ **Consider using a more appropriate logging level for operational events that are expectedunder normal conditions. Using Info level for adding global rule bindings might be too verbose for production environments. If this event is significant and should always be logged, Info is appropriate; otherwise, consider using Debug .**
[pkg/rulebindingmanager/cache/cache.go [185]](https://github.com/kubescape/node-agent/pull/233/files#diff-0674d450411ce55370a6341da8d3a34cadffe21ba15112d3f29955de58e51156R185-R185)
```diff
-logger.L().Info("AddRuleBinding", helpers.String("ruleBinding", rbName), helpers.String("global", "true"))
+logger.L().Debug("AddRuleBinding", helpers.String("ruleBinding", rbName), helpers.String("global", "true"))
```
|
Uncomment the test function to ensure critical functionality is tested.___ **Uncomment theTestProcessEvent function to ensure the ProcessEvent method is properly tested. It's important to have tests covering the logic for detecting executions from malicious sources, as this is a critical security feature.** [pkg/ruleengine/v1/r1000_exec_from_malicious_source_test.go [46-103]](https://github.com/kubescape/node-agent/pull/233/files#diff-0335c2abb82667ee7c0f955f8a4f1ab795958d30e89dc3965de2d67c6b610b00R46-R103) ```diff -// func TestProcessEvent(t *testing.T) { -// ... -// } +func TestProcessEvent(t *testing.T) { + ... +} ``` | |
Possible issue |
Ensure the execution path is absolute to match the logic's assumptions.___ **Ensure thatgetExecPathFromEvent(execEvent) always returns an absolute path as assumed by the comment. If there's any chance it might not, consider adding a check or normalization step to ensure the path is absolute. This will prevent logic errors when checking prefixes against maliciousExecPathPrefixes .**
[pkg/ruleengine/v1/r1000_exec_from_malicious_source.go [74]](https://github.com/kubescape/node-agent/pull/233/files#diff-00351ce4b75a85e267a68663f357265bbcc7721c2e461fa6112363fdfb2150c5R74-R74)
```diff
-p := filepath.Dir(getExecPathFromEvent(execEvent))
+execPath := getExecPathFromEvent(execEvent)
+if !filepath.IsAbs(execPath) {
+ execPath = filepath.Join("/absolute/path/base", execPath)
+}
+p := filepath.Dir(execPath)
```
|
Add back logging for errors when listing resources fails.___ **It seems the logging for failed attempts to list resources has been removed. Consideradding back logging for these errors with appropriate context. Logging such errors is crucial for diagnosing issues in dynamic environments.** [pkg/watcher/dynamicwatcher/watch.go [88]](https://github.com/kubescape/node-agent/pull/233/files#diff-f29578a7352bf2f04d5b87fd277128222fa7ce282adc7d71a9d628c9880a5722R88-R88) ```diff -// filed to list resources, will retry +logger.L().Ctx(ctx).Warning("get existing storage objects", helpers.Error(err), + helpers.String("resource", res.Resource), + helpers.String("retry in", d.String())) ``` | |
Maintainability |
Remove unnecessary import if not used.___ **Importing"path/filepath" without using it in the new code changes could indicate an unnecessary import. If "path/filepath" is not used elsewhere in the file outside the diff provided, consider removing this import to keep the code clean and maintainable.** [pkg/ruleengine/v1/r1000_exec_from_malicious_source.go [8]](https://github.com/kubescape/node-agent/pull/233/files#diff-00351ce4b75a85e267a68663f357265bbcc7721c2e461fa6112363fdfb2150c5R8-R8) ```diff -"path/filepath" +"" ``` |
Summary:
User description
Overview
Type
bug_fix, enhancement
Description
Changes walkthrough
cache.go
Enhance Logging for Global Rule Binding Addition
pkg/rulebindingmanager/cache/cache.go
binding.
r1000_exec_from_malicious_source.go
Improve Malicious Source Detection Logic in Rule R1000
pkg/ruleengine/v1/r1000_exec_from_malicious_source.go
filepath
package for path manipulation.malicious source detection.
r1000_exec_from_malicious_source_test.go
Extend Test Coverage for Rule R1000 Malicious Source Detection
pkg/ruleengine/v1/r1000_exec_from_malicious_source_test.go
ProcessEvent
function in rule R1000 to covervarious scenarios including non-ExecveEventType, non-malicious source,
and malicious source.
watch.go
Remove Warning Log on Resource Listing Failure
pkg/watcher/dynamicwatcher/watch.go
silent retry mechanism.