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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| package vulnerability | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "fmt" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/knqyf263/trivy/pkg/utils" | ||
|
|
||
| "sort" | ||
|
|
||
| "github.com/knqyf263/trivy/pkg/log" | ||
| ) | ||
|
|
||
| const ( | ||
| trivyIgnore = ".trivyignore" | ||
| ) | ||
|
|
||
| var ( | ||
| sources = []string{Nvd, RedHat, Debian, DebianOVAL, Alpine, | ||
| RubySec, RustSec, PhpSecurityAdvisories, NodejsSecurityWg, PythonSafetyDB} | ||
| ) | ||
|
|
||
| func FillAndFilter(vulns []DetectedVulnerability, severities []Severity, ignoreUnfixed bool) []DetectedVulnerability { | ||
| ignoredIDs := getIgnoredIDs() | ||
| var vulnerabilities []DetectedVulnerability | ||
| for _, vuln := range vulns { | ||
| sev, title, description, references := getDetail(vuln.VulnerabilityID) | ||
|
|
||
| // Filter vulnerabilities by severity | ||
| for _, s := range severities { | ||
| if s == sev { | ||
| vuln.Severity = fmt.Sprint(sev) | ||
| vuln.Title = title | ||
| vuln.Description = description | ||
| vuln.References = references | ||
|
|
||
| // Ignore unfixed vulnerabilities | ||
| if ignoreUnfixed && vuln.FixedVersion == "" { | ||
| continue | ||
| } else if utils.StringInSlice(vuln.VulnerabilityID, ignoredIDs) { | ||
| continue | ||
| } | ||
| vulnerabilities = append(vulnerabilities, vuln) | ||
| break | ||
| } | ||
| } | ||
| } | ||
| sort.Slice(vulnerabilities, func(i, j int) bool { | ||
| if vulnerabilities[i].PkgName != vulnerabilities[j].PkgName { | ||
| return vulnerabilities[i].PkgName < vulnerabilities[j].PkgName | ||
| } | ||
| return CompareSeverityString(vulnerabilities[j].Severity, vulnerabilities[i].Severity) | ||
| }) | ||
| return vulnerabilities | ||
| } | ||
|
|
||
| func getIgnoredIDs() []string { | ||
| f, err := os.Open(trivyIgnore) | ||
| if err != nil { | ||
| // trivy must work even if no .trivyignore exist | ||
| return nil | ||
| } | ||
|
|
||
| var ignoredIDs []string | ||
| scanner := bufio.NewScanner(f) | ||
| for scanner.Scan() { | ||
| line := scanner.Text() | ||
| line = strings.TrimSpace(line) | ||
| if strings.HasPrefix(line, "#") || line == "" { | ||
| continue | ||
| } | ||
| ignoredIDs = append(ignoredIDs, line) | ||
| } | ||
| return ignoredIDs | ||
| } | ||
|
|
||
| func getDetail(vulnID string) (Severity, string, string, []string) { | ||
| details, err := Get(vulnID) | ||
| if err != nil { | ||
| log.Logger.Debug(err) | ||
| return SeverityUnknown, "", "", nil | ||
| } else if len(details) == 0 { | ||
| return SeverityUnknown, "", "", nil | ||
| } | ||
| return getSeverity(details), getTitle(details), getDescription(details), getReferences(details) | ||
| } | ||
|
|
||
| func getSeverity(details map[string]Vulnerability) Severity { | ||
| for _, source := range sources { | ||
| d, ok := details[source] | ||
| if !ok { | ||
| continue | ||
| } | ||
| if d.CvssScore > 0 { | ||
| return scoreToSeverity(d.CvssScore) | ||
| } else if d.CvssScoreV3 > 0 { | ||
| return scoreToSeverity(d.CvssScoreV3) | ||
| } else if d.Severity != 0 { | ||
| return d.Severity | ||
| } else if d.SeverityV3 != 0 { | ||
| return d.SeverityV3 | ||
| } | ||
| } | ||
| return SeverityUnknown | ||
| } | ||
|
|
||
| func getTitle(details map[string]Vulnerability) string { | ||
| for _, source := range sources { | ||
| d, ok := details[source] | ||
| if !ok { | ||
| continue | ||
| } | ||
| if d.Title != "" { | ||
| return d.Title | ||
| } | ||
| } | ||
| return "" | ||
| } | ||
|
|
||
| func getDescription(details map[string]Vulnerability) string { | ||
| for _, source := range sources { | ||
| d, ok := details[source] | ||
| if !ok { | ||
| continue | ||
| } | ||
| if d.Description != "" { | ||
| return d.Description | ||
| } | ||
| } | ||
| return "" | ||
| } | ||
|
|
||
| func getReferences(details map[string]Vulnerability) []string { | ||
| references := map[string]struct{}{} | ||
| for _, source := range sources { | ||
| d, ok := details[source] | ||
| if !ok { | ||
| continue | ||
| } | ||
| for _, ref := range d.References { | ||
| references[ref] = struct{}{} | ||
| } | ||
| } | ||
| var refs []string | ||
| for ref := range references { | ||
| refs = append(refs, ref) | ||
| } | ||
| return refs | ||
| } | ||
|
|
||
| func scoreToSeverity(score float64) Severity { | ||
| if score >= 9.0 { | ||
| return SeverityCritical | ||
| } else if score >= 7.0 { | ||
| return SeverityHigh | ||
| } else if score >= 4.0 { | ||
| return SeverityMedium | ||
| } else if score > 0.0 { | ||
| return SeverityLow | ||
| } | ||
| return SeverityUnknown | ||
| } |