112 lines
3.8 KiB
Go
112 lines
3.8 KiB
Go
/* Vuls - Vulnerability Scanner
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Copyright (C) 2018 Future Corporation , Japan.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package report
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import (
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"fmt"
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"strings"
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syslog "github.com/RackSec/srslog"
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"github.com/pkg/errors"
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"github.com/future-architect/vuls/config"
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"github.com/future-architect/vuls/models"
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)
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// SyslogWriter send report to syslog
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type SyslogWriter struct{}
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func (w SyslogWriter) Write(rs ...models.ScanResult) (err error) {
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conf := config.Conf.Syslog
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facility, _ := conf.GetFacility()
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severity, _ := conf.GetSeverity()
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raddr := fmt.Sprintf("%s:%s", conf.Host, conf.Port)
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sysLog, err := syslog.Dial(conf.Protocol, raddr, severity|facility, conf.Tag)
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if err != nil {
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return errors.Wrap(err, "Failed to initialize syslog client")
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}
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for _, r := range rs {
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messages := w.encodeSyslog(r)
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for _, m := range messages {
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if _, err = fmt.Fprintf(sysLog, m); err != nil {
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return err
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}
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}
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}
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return nil
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}
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func (w SyslogWriter) encodeSyslog(result models.ScanResult) (messages []string) {
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ipv4Addrs := strings.Join(result.IPv4Addrs, ",")
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ipv6Addrs := strings.Join(result.IPv6Addrs, ",")
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var commonKvPairs []string
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commonKvPairs = append(commonKvPairs, fmt.Sprintf(`scanned_at="%s"`, result.ScannedAt))
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commonKvPairs = append(commonKvPairs, fmt.Sprintf(`server_name="%s"`, result.ServerName))
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commonKvPairs = append(commonKvPairs, fmt.Sprintf(`os_family="%s"`, result.Family))
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commonKvPairs = append(commonKvPairs, fmt.Sprintf(`os_release="%s"`, result.Release))
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commonKvPairs = append(commonKvPairs, fmt.Sprintf(`ipv4_addr="%s"`, ipv4Addrs))
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commonKvPairs = append(commonKvPairs, fmt.Sprintf(`ipv6_addr="%s"`, ipv6Addrs))
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for cveID, vinfo := range result.ScannedCves {
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kvPairs := commonKvPairs
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var pkgNames []string
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for _, pkg := range vinfo.AffectedPackages {
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pkgNames = append(pkgNames, pkg.Name)
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}
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pkgs := strings.Join(pkgNames, ",")
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kvPairs = append(kvPairs, fmt.Sprintf(`packages="%s"`, pkgs))
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kvPairs = append(kvPairs, fmt.Sprintf(`cve_id="%s"`, cveID))
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for _, cvss := range vinfo.Cvss2Scores(result.Family) {
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kvPairs = append(kvPairs, fmt.Sprintf(`cvss_score_%s_v2="%.2f"`, cvss.Type, cvss.Value.Score))
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kvPairs = append(kvPairs, fmt.Sprintf(`cvss_vector_%s_v2="%s"`, cvss.Type, cvss.Value.Vector))
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}
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for _, cvss := range vinfo.Cvss3Scores() {
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kvPairs = append(kvPairs, fmt.Sprintf(`cvss_score_%s_v3="%.2f"`, cvss.Type, cvss.Value.Score))
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kvPairs = append(kvPairs, fmt.Sprintf(`cvss_vector_%s_v3="%s"`, cvss.Type, cvss.Value.Vector))
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}
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if content, ok := vinfo.CveContents[models.NvdXML]; ok {
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cwes := strings.Join(content.CweIDs, ",")
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kvPairs = append(kvPairs, fmt.Sprintf(`cwe_ids="%s"`, cwes))
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if config.Conf.Syslog.Verbose {
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kvPairs = append(kvPairs, fmt.Sprintf(`source_link="%s"`, content.SourceLink))
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kvPairs = append(kvPairs, fmt.Sprintf(`summary="%s"`, content.Summary))
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}
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}
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if content, ok := vinfo.CveContents[models.RedHat]; ok {
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kvPairs = append(kvPairs, fmt.Sprintf(`title="%s"`, content.Title))
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}
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// message: key1="value1" key2="value2"...
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messages = append(messages, strings.Join(kvPairs, " "))
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}
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if len(messages) == 0 {
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commonKvPairs = append(commonKvPairs, `message="No CVE-IDs are found"`)
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messages = append(messages, strings.Join(commonKvPairs, " "))
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}
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return messages
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}
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