feat(oval): support new goval-dictionary model (#1280)

* feat(oval): support new goval-dictionary model

* chore: fix lint err

* chore: set len of slice to 0

* fix(oval): avoid contamination of AffectedPackages by writing directly to defPacks

* fix(oval): avoid contamination of AffectedPackages by writing directly to defPacks

* feat(report): do not add duplicate CveContent

* chore: goval-dictionary update

* chore: go mod tidy

* fix(oval): preload Advisory.Cves for Ubuntu

https://github.com/kotakanbe/goval-dictionary/pull/152

Co-authored-by: Kota Kanbe <kotakanbe@gmail.com>
This commit is contained in:
MaineK00n
2021-09-13 10:19:59 +09:00
committed by GitHub
parent 47e6ea249d
commit 591786fde6
16 changed files with 320 additions and 156 deletions

View File

@@ -20,73 +20,75 @@ type DebianBase struct {
Base
}
func (o DebianBase) update(r *models.ScanResult, defPacks defPacks) {
ovalContent := *o.convertToModel(&defPacks.def)
ovalContent.Type = models.NewCveContentType(o.family)
vinfo, ok := r.ScannedCves[defPacks.def.Debian.CveID]
if !ok {
logging.Log.Debugf("%s is newly detected by OVAL", defPacks.def.Debian.CveID)
vinfo = models.VulnInfo{
CveID: defPacks.def.Debian.CveID,
Confidences: []models.Confidence{models.OvalMatch},
CveContents: models.NewCveContents(ovalContent),
func (o DebianBase) update(r *models.ScanResult, defpacks defPacks) {
for _, cve := range defpacks.def.Advisory.Cves {
ovalContent := o.convertToModel(cve.CveID, &defpacks.def)
if ovalContent == nil {
continue
}
} else {
cveContents := vinfo.CveContents
ctype := models.NewCveContentType(o.family)
if _, ok := vinfo.CveContents[ctype]; ok {
logging.Log.Debugf("%s OVAL will be overwritten",
defPacks.def.Debian.CveID)
vinfo, ok := r.ScannedCves[cve.CveID]
if !ok {
logging.Log.Debugf("%s is newly detected by OVAL", cve.CveID)
vinfo = models.VulnInfo{
CveID: cve.CveID,
Confidences: []models.Confidence{models.OvalMatch},
CveContents: models.NewCveContents(*ovalContent),
}
} else {
logging.Log.Debugf("%s is also detected by OVAL",
defPacks.def.Debian.CveID)
cveContents = models.CveContents{}
}
if r.Family != constant.Raspbian {
cveContents := vinfo.CveContents
if _, ok := vinfo.CveContents[ovalContent.Type]; ok {
logging.Log.Debugf("%s OVAL will be overwritten", cve.CveID)
} else {
logging.Log.Debugf("%s is also detected by OVAL", cve.CveID)
cveContents = models.CveContents{}
}
vinfo.Confidences.AppendIfMissing(models.OvalMatch)
} else {
if len(vinfo.Confidences) == 0 {
vinfo.Confidences.AppendIfMissing(models.OvalMatch)
cveContents[ovalContent.Type] = []models.CveContent{*ovalContent}
vinfo.CveContents = cveContents
}
// uniq(vinfo.AffectedPackages[].Name + defPacks.binpkgFixstat(map[string(=package name)]fixStat{}))
collectBinpkgFixstat := defPacks{
binpkgFixstat: map[string]fixStat{},
}
for packName, fixStatus := range defpacks.binpkgFixstat {
collectBinpkgFixstat.binpkgFixstat[packName] = fixStatus
}
for _, pack := range vinfo.AffectedPackages {
collectBinpkgFixstat.binpkgFixstat[pack.Name] = fixStat{
notFixedYet: pack.NotFixedYet,
fixedIn: pack.FixedIn,
isSrcPack: false,
}
}
cveContents[ctype] = append(cveContents[ctype], ovalContent)
vinfo.CveContents = cveContents
}
// uniq(vinfo.PackNames + defPacks.binpkgStat)
for _, pack := range vinfo.AffectedPackages {
defPacks.binpkgFixstat[pack.Name] = fixStat{
notFixedYet: pack.NotFixedYet,
fixedIn: pack.FixedIn,
isSrcPack: false,
}
}
// Update package status of source packages.
// In the case of Debian based Linux, sometimes source package name is defined as affected package in OVAL.
// To display binary package name showed in apt-get, need to convert source name to binary name.
for binName := range defPacks.binpkgFixstat {
if srcPack, ok := r.SrcPackages.FindByBinName(binName); ok {
for _, p := range defPacks.def.AffectedPacks {
if p.Name == srcPack.Name {
defPacks.binpkgFixstat[binName] = fixStat{
notFixedYet: p.NotFixedYet,
fixedIn: p.Version,
isSrcPack: true,
srcPackName: srcPack.Name,
// Update package status of source packages.
// In the case of Debian based Linux, sometimes source package name is defined as affected package in OVAL.
// To display binary package name showed in apt-get, need to convert source name to binary name.
for binName := range defpacks.binpkgFixstat {
if srcPack, ok := r.SrcPackages.FindByBinName(binName); ok {
for _, p := range defpacks.def.AffectedPacks {
if p.Name == srcPack.Name {
collectBinpkgFixstat.binpkgFixstat[binName] = fixStat{
notFixedYet: p.NotFixedYet,
fixedIn: p.Version,
isSrcPack: true,
srcPackName: srcPack.Name,
}
}
}
}
}
}
vinfo.AffectedPackages = defPacks.toPackStatuses()
vinfo.AffectedPackages.Sort()
r.ScannedCves[defPacks.def.Debian.CveID] = vinfo
vinfo.AffectedPackages = collectBinpkgFixstat.toPackStatuses()
vinfo.AffectedPackages.Sort()
r.ScannedCves[cve.CveID] = vinfo
}
}
func (o DebianBase) convertToModel(def *ovalmodels.Definition) *models.CveContent {
refs := []models.Reference{}
func (o DebianBase) convertToModel(cveID string, def *ovalmodels.Definition) *models.CveContent {
refs := make([]models.Reference, 0, len(def.References))
for _, r := range def.References {
refs = append(refs, models.Reference{
Link: r.RefURL,
@@ -95,14 +97,23 @@ func (o DebianBase) convertToModel(def *ovalmodels.Definition) *models.CveConten
})
}
return &models.CveContent{
CveID: def.Debian.CveID,
Title: def.Title,
Summary: def.Description,
Cvss2Severity: def.Advisory.Severity,
Cvss3Severity: def.Advisory.Severity,
References: refs,
for _, cve := range def.Advisory.Cves {
if cve.CveID != cveID {
continue
}
return &models.CveContent{
Type: models.NewCveContentType(o.family),
CveID: cve.CveID,
Title: def.Title,
Summary: def.Description,
Cvss2Severity: def.Advisory.Severity,
Cvss3Severity: def.Advisory.Severity,
References: refs,
}
}
return nil
}
// Debian is the interface for Debian OVAL
@@ -183,9 +194,9 @@ func (o Debian) FillWithOval(r *models.ScanResult) (nCVEs int, err error) {
for _, vuln := range r.ScannedCves {
if conts, ok := vuln.CveContents[models.Debian]; ok {
for _, cont := range conts {
for i, cont := range conts {
cont.SourceLink = "https://security-tracker.debian.org/tracker/" + cont.CveID
vuln.CveContents[models.Debian] = append(vuln.CveContents[models.Debian], cont)
vuln.CveContents[models.Debian][i] = cont
}
}
}
@@ -502,9 +513,9 @@ func (o Ubuntu) fillWithOval(r *models.ScanResult, kernelNamesInOval []string) (
for _, vuln := range r.ScannedCves {
if conts, ok := vuln.CveContents[models.Ubuntu]; ok {
for _, cont := range conts {
for i, cont := range conts {
cont.SourceLink = "http://people.ubuntu.com/~ubuntu-security/cve/" + cont.CveID
vuln.CveContents[models.Ubuntu] = append(vuln.CveContents[models.Ubuntu], cont)
vuln.CveContents[models.Ubuntu][i] = cont
}
}
}