-
Notifications
You must be signed in to change notification settings - Fork 6
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add another CVE, make detection more generic, better console output
Signed-off-by: Philipp Deppenwiese <[email protected]>
- Loading branch information
Showing
10 changed files
with
199 additions
and
31 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
|
|
||
| dist/ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| # This is an example .goreleaser.yml file with some sane defaults. | ||
| # Make sure to check the documentation at http://goreleaser.com | ||
| before: | ||
| hooks: | ||
| # You may remove this if you don't use go modules. | ||
| - go mod tidy | ||
| builds: | ||
| - env: | ||
| - CGO_ENABLED=0 | ||
| goos: | ||
| - linux | ||
| - windows | ||
| goarch: | ||
| - amd64 | ||
| main: ./cmd/tpm-vuln-checker | ||
| checksum: | ||
| name_template: 'checksums.txt' | ||
| snapshot: | ||
| name_template: "{{ incpatch .Version }}-next" | ||
| changelog: | ||
| sort: asc | ||
| filters: | ||
| exclude: | ||
| - '^docs:' | ||
| - '^test:' |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,6 @@ | ||
| domain: vuln.immune.gmbh | ||
| url: https://vuln.immune.gmbh | ||
| markdown: kramdown | ||
| remote_theme: immune-gmbh/midnight@master | ||
| remote_theme: pages-themes/midnight@v0.2.0 | ||
| plugins: | ||
| - jekyll-remote-theme | ||
| - jekyll-remote-theme |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| // MIT License | ||
| // | ||
| // Copyright (c) 2017, Jonathan Rudenberg | ||
| // Copyright (c) 2017, CRoCS, EnigmaBridge Ltd. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all | ||
| // copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| // SOFTWARE. | ||
| package cve201715361 | ||
|
|
||
| import ( | ||
| "crypto/rsa" | ||
| "fmt" | ||
| "io" | ||
| "math/big" | ||
|
|
||
| "github.com/google/go-tpm/tpm2" | ||
| "github.com/immune-gmbh/tpm-vuln-checker/pkg/tss" | ||
| ) | ||
|
|
||
| type CVEData struct { | ||
| Vulnerable bool | ||
| } | ||
|
|
||
| type test struct { | ||
| Prime *big.Int | ||
| Fingerprints map[int64]struct{} | ||
| } | ||
|
|
||
| var tests = make([]test, 17) | ||
|
|
||
| func init() { | ||
| bigOne := big.NewInt(1) | ||
| n := &big.Int{} | ||
| // relations table from https://github.com/crocs-muni/roca/pull/40 | ||
| for i, r := range [][2]int64{ | ||
| {2, 11}, {6, 13}, {8, 17}, {9, 19}, {3, 37}, {26, 53}, {20, 61}, | ||
| {35, 71}, {24, 73}, {13, 79}, {6, 97}, {51, 103}, {53, 107}, | ||
| {54, 109}, {42, 127}, {50, 151}, {78, 157}, | ||
| } { | ||
| fps := make(map[int64]struct{}) | ||
| bp := big.NewInt(r[1]) | ||
| br := big.NewInt(r[0]) | ||
| for j := int64(0); j < r[1]; j++ { | ||
| if n.Exp(big.NewInt(j), br, bp).Cmp(bigOne) == 0 { | ||
| fps[j] = struct{}{} | ||
| } | ||
| } | ||
| tests[i] = test{ | ||
| Prime: big.NewInt(r[1]), | ||
| Fingerprints: fps, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // IsWeak returns true if a RSA public key is vulnerable to Return of | ||
| // Coppersmith's Attack (ROCA). | ||
| func IsVulnerable(rwc io.ReadWriteCloser) (bool, *CVEData, error) { | ||
| var cveData CVEData | ||
| _ = tpm2.Startup(rwc, tpm2.StartupClear) | ||
| session, _, err := tss.StartAuthSession( | ||
| rwc, | ||
| tpm2.HandleNull, | ||
| tpm2.HandleNull, | ||
| make([]byte, 16), | ||
| nil, | ||
| tpm2.SessionHMAC, | ||
| tpm2.AlgXOR, | ||
| tpm2.AlgSHA256) | ||
| if err != nil { | ||
| return false, nil, fmt.Errorf("") | ||
| } | ||
| defer tpm2.FlushContext(rwc, session) | ||
|
|
||
| hnd, publicKey, err := tpm2.CreatePrimary(rwc, tpm2.HandleEndorsement, tpm2.PCRSelection{}, "", "", tss.RSAPublicKey) | ||
| if err != nil { | ||
| return false, nil, fmt.Errorf("") | ||
| } | ||
| defer tpm2.FlushContext(rwc, hnd) | ||
| tmp := &big.Int{} | ||
| key := publicKey.(*rsa.PublicKey) | ||
| for _, t := range tests { | ||
| if _, ok := t.Fingerprints[tmp.Mod(key.N, t.Prime).Int64()]; !ok { | ||
| cveData.Vulnerable = false | ||
| return false, &cveData, nil | ||
| } | ||
| } | ||
| cveData.Vulnerable = true | ||
| return true, &cveData, nil | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters