Refactor
This commit is contained in:
parent
09feffb6a8
commit
4fdcc5d098
GPG Key ID:
BE44DA8C062D87DC
307
debug.go
307
debug.go
@ -40,10 +40,154 @@ func (cmd *DebugCmd) Run(g *Globals) (err error) {
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log.Println(err)
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}
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return debugHandler(kcfg, g.WorkDir, cmd.Kernel, cmd.Gdb,
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g.Config.Docker.Timeout.Duration,
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cmd.Kaslr, cmd.Smep, cmd.Smap, cmd.Kpti,
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cmd.NoKaslr, cmd.NoSmep, cmd.NoSmap, cmd.NoKpti)
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ka, err := config.ReadArtifactConfig(g.WorkDir + "/.out-of-tree.toml")
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if err != nil {
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return
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}
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if ka.SourcePath == "" {
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ka.SourcePath = g.WorkDir
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}
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ki, err := firstSupported(kcfg, ka, cmd.Kernel)
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if err != nil {
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return
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}
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kernel := qemu.Kernel{KernelPath: ki.KernelPath, InitrdPath: ki.InitrdPath}
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q, err := qemu.NewSystem(qemu.X86x64, kernel, ki.RootFS)
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if err != nil {
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return
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}
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if ka.Qemu.Cpus != 0 {
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q.Cpus = ka.Qemu.Cpus
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}
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if ka.Qemu.Memory != 0 {
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q.Memory = ka.Qemu.Memory
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}
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if ka.Docker.Timeout.Duration != 0 {
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g.Config.Docker.Timeout.Duration = ka.Docker.Timeout.Duration
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}
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q.SetKASLR(false) // set KASLR to false by default because of gdb
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q.SetSMEP(!ka.Mitigations.DisableSmep)
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q.SetSMAP(!ka.Mitigations.DisableSmap)
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q.SetKPTI(!ka.Mitigations.DisableKpti)
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if cmd.Kaslr {
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q.SetKASLR(true)
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} else if cmd.NoKaslr {
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q.SetKASLR(false)
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}
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if cmd.Smep {
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q.SetSMEP(true)
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} else if cmd.NoSmep {
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q.SetSMEP(false)
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}
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if cmd.Smap {
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q.SetSMAP(true)
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} else if cmd.NoSmap {
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q.SetSMAP(false)
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}
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if cmd.Kpti {
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q.SetKPTI(true)
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} else if cmd.NoKpti {
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q.SetKPTI(false)
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}
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redgreen := func(name string, enabled bool) aurora.Value {
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if enabled {
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return aurora.BgGreen(aurora.Black(name))
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}
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return aurora.BgRed(aurora.White(name))
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}
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fmt.Printf("[*] %s %s %s %s\n",
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redgreen("KASLR", q.GetKASLR()),
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redgreen("SMEP", q.GetSMEP()),
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redgreen("SMAP", q.GetSMAP()),
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redgreen("KPTI", q.GetKPTI()))
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fmt.Printf("[*] SMP: %d CPUs\n", q.Cpus)
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fmt.Printf("[*] Memory: %d MB\n", q.Memory)
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q.Debug(cmd.Gdb)
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coloredGdbAddress := aurora.BgGreen(aurora.Black(cmd.Gdb))
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fmt.Printf("[*] gdb is listening on %s\n", coloredGdbAddress)
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err = q.Start()
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if err != nil {
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return
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}
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defer q.Stop()
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tmp, err := ioutil.TempDir("/tmp/", "out-of-tree_")
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if err != nil {
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return
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}
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defer os.RemoveAll(tmp)
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err = q.WaitForSSH(time.Minute)
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if err != nil {
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return
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}
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if ka.StandardModules {
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// Module depends on one of the standard modules
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err = copyStandardModules(q, ki)
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if err != nil {
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log.Println(err)
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return
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}
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}
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err = preloadModules(q, ka, ki, g.Config.Docker.Timeout.Duration)
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if err != nil {
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log.Println(err)
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return
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}
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_, outFile, output, err := build(tmp, ka, ki, g.Config.Docker.Timeout.Duration)
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if err != nil {
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log.Println(err, output)
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return
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}
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remoteFile := "/tmp/exploit"
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if ka.Type == config.KernelModule {
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remoteFile = "/tmp/module.ko"
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}
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err = q.CopyFile("user", outFile, remoteFile)
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if err != nil {
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return
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}
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// Copy all test files to the remote machine
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for _, f := range ka.TestFiles {
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err = q.CopyFile(f.User, f.Local, f.Remote)
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if err != nil {
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log.Println("error copy err:", err, f.Local, f.Remote)
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return
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}
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}
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coloredRemoteFile := aurora.BgGreen(aurora.Black(remoteFile))
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fmt.Printf("[*] build result copied to %s\n", coloredRemoteFile)
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fmt.Printf("\n%s\n", q.GetSSHCommand())
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fmt.Printf("gdb %s -ex 'target remote %s'\n\n", ki.VmlinuxPath, cmd.Gdb)
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// TODO set substitute-path /build/.../linux-... /path/to/linux-source
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err = interactive(q)
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return
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}
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func firstSupported(kcfg config.KernelConfig, ka config.Artifact,
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@ -108,158 +252,3 @@ func interactive(q *qemu.System) (err error) {
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}
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}
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}
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// TODO Merge with pew.go:whatever
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func debugHandler(kcfg config.KernelConfig, workPath, kernRegex, gdb string,
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dockerTimeout time.Duration, yekaslr, yesmep, yesmap, yekpti,
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nokaslr, nosmep, nosmap, nokpti bool) (err error) {
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ka, err := config.ReadArtifactConfig(workPath + "/.out-of-tree.toml")
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if err != nil {
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return
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}
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if ka.SourcePath == "" {
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ka.SourcePath = workPath
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}
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ki, err := firstSupported(kcfg, ka, kernRegex)
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if err != nil {
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return
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}
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kernel := qemu.Kernel{KernelPath: ki.KernelPath, InitrdPath: ki.InitrdPath}
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q, err := qemu.NewSystem(qemu.X86x64, kernel, ki.RootFS)
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if err != nil {
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return
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}
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if ka.Qemu.Cpus != 0 {
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q.Cpus = ka.Qemu.Cpus
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}
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if ka.Qemu.Memory != 0 {
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q.Memory = ka.Qemu.Memory
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}
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if ka.Docker.Timeout.Duration != 0 {
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dockerTimeout = ka.Docker.Timeout.Duration
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}
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q.SetKASLR(false) // set KASLR to false by default because of gdb
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q.SetSMEP(!ka.Mitigations.DisableSmep)
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q.SetSMAP(!ka.Mitigations.DisableSmap)
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q.SetKPTI(!ka.Mitigations.DisableKpti)
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if yekaslr {
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q.SetKASLR(true)
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} else if nokaslr {
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q.SetKASLR(false)
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}
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if yesmep {
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q.SetSMEP(true)
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} else if nosmep {
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q.SetSMEP(false)
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}
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if yesmap {
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q.SetSMAP(true)
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} else if nosmap {
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q.SetSMAP(false)
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}
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if yekpti {
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q.SetKPTI(true)
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} else if nokpti {
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q.SetKPTI(false)
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}
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redgreen := func(name string, enabled bool) aurora.Value {
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if enabled {
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return aurora.BgGreen(aurora.Black(name))
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}
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return aurora.BgRed(aurora.White(name))
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}
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fmt.Printf("[*] %s %s %s %s\n",
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redgreen("KASLR", q.GetKASLR()),
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redgreen("SMEP", q.GetSMEP()),
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redgreen("SMAP", q.GetSMAP()),
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redgreen("KPTI", q.GetKPTI()))
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fmt.Printf("[*] SMP: %d CPUs\n", q.Cpus)
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fmt.Printf("[*] Memory: %d MB\n", q.Memory)
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q.Debug(gdb)
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coloredGdbAddress := aurora.BgGreen(aurora.Black(gdb))
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fmt.Printf("[*] gdb is listening on %s\n", coloredGdbAddress)
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err = q.Start()
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if err != nil {
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return
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}
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defer q.Stop()
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tmp, err := ioutil.TempDir("/tmp/", "out-of-tree_")
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if err != nil {
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return
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}
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defer os.RemoveAll(tmp)
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err = q.WaitForSSH(time.Minute)
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if err != nil {
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return
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}
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if ka.StandardModules {
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// Module depends on one of the standard modules
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err = copyStandardModules(q, ki)
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if err != nil {
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log.Println(err)
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return
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}
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}
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err = preloadModules(q, ka, ki, dockerTimeout)
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if err != nil {
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log.Println(err)
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return
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}
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_, outFile, output, err := build(tmp, ka, ki, dockerTimeout)
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if err != nil {
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log.Println(err, output)
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return
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}
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remoteFile := "/tmp/exploit"
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if ka.Type == config.KernelModule {
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remoteFile = "/tmp/module.ko"
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}
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err = q.CopyFile("user", outFile, remoteFile)
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if err != nil {
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return
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}
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// Copy all test files to the remote machine
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for _, f := range ka.TestFiles {
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err = q.CopyFile(f.User, f.Local, f.Remote)
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if err != nil {
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log.Println("error copy err:", err, f.Local, f.Remote)
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return
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}
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}
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coloredRemoteFile := aurora.BgGreen(aurora.Black(remoteFile))
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fmt.Printf("[*] build result copied to %s\n", coloredRemoteFile)
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fmt.Printf("\n%s\n", q.GetSSHCommand())
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fmt.Printf("gdb %s -ex 'target remote %s'\n\n", ki.VmlinuxPath, gdb)
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// TODO set substitute-path /build/.../linux-... /path/to/linux-source
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err = interactive(q)
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return
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}
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