Terrier：一款功能强大的镜像&容器安全分析工具
Terrier是一款针对OCI镜像和容器的安全分析工具，Terrier可以帮助研究人员扫描OCI镜像和容器文件，并根据哈希来识别和验证特定文件是否存在。
工具安装
源代码：
如需了解源代码安装步骤，请参考项目的Releases页面。
通过Go安装：
$ go get github.com/heroku/terrier源构建
通过Go：
$ go build或
$ make all工具使用
$ ./terrier -hUsage of ./terrier:-cfg stringLoad config from provided yaml file (default "cfg.yml")工具使用必须扫描镜像的OCI TAR，这个值需要通过cfg.yml文件提供给Terrier。
下列Docker命令可以用来将一个Docker镜像转换成一个TAR文件，并提供给Terrier扫描：
# docker save imageid -o image.tar$ ./terrier[+] Loading config: cfg.yml[+] Analysing Image[+] Docker Image Source: image.tar[*] Inspecting Layer: 05c3c2c60920f68***6d3c66e0f6148b81a8b0831388c2d61be5ef02190bcd1f[!] All components were identified and verified: (493/493)样本YML配置
Terrier会对YAML文件进行解析，下列给出的是样本配置文件：
#THIS IS AN EXAMPLE CONFIG, MODIFY TO YOUR NEEDSmode: imageimage: image.tar# mode: container# path: merged# verbose: true# veryverbose: truefiles:- name: '/usr/bin/curl'hashes:- hash: '2353cbb7b47d0782ba8cdd9c7438b053c982eaaea6fbef8620c31a58d1e276e8'- hash: '22e88c7d6da9b73fbb515ed6a8f6d133c680527a799e3069ca7ce346d90649b2aaa'- hash: '9a43cb726fef31f272333b236ff1fde4beab363af54d0bc99c304450065d9c96'- hash: '8b7c559b8cccca0d30d01bc4b5dc944766208a53d18a03aa8afe97252207521faa'- name: '/usr/bin/go' hashes:- hash: '2353cbb7b47d0782ba8cdd9c7438b053c982eaaea6fbef8620c31a58d1e276e8'#UNCOMMENT TO ANALYZE HASHES# hashes:#- hash: '8b7c559b8cccca0d30d01bc4b5dc944766208a53d18a03aa8afe97252207521faa'#- hash: '22e88c7d6da9b73fbb515ed6a8f6d133c680527a799e3069ca7ce346d90649b2aa'#- hash: '60a2c86db4523e5d3eb41a247b4e7042a21d5c9d483d59053159d9ed50c8aa41aa'Terrier会做什么？
Terrier提供了一个命令行工具，可以允许我们：
1、扫描一个OCI镜像中一个或多个目标文件是否存在，需提供目标文件的SHA256哈希；
2、扫描一个正在运行的容器中一个或多个目标文件是否存在，需提供目标文件的SHA256哈希；
Terrier使用场景
场景1
Terrier可以用来验证特定OCI镜像是否包含特定代码，这个功能可以使用在供应链验证场景中。比如说，我们可能需要检查特定Docker镜像是否由特定版本的代码构成的，此时就可以使用Terrier了。此时，我们需要提供特定代码的SHA256哈希。
此场景下的样本YAML文件如下所示：
mode: image# verbose: true# veryverbose: trueimage: golang1131.tarfiles:- name: '/usr/local/bin/analysis.sh'hashes:- hash: '9adc0bf7362bb66b98005aebec36691a62c80d54755e361788c776367d11b105'- name: '/usr/bin/curl'hashes:- hash: '23afbfab4f35ac90d9841a6e05f0d1487b6e0c3a914ea8dab3676c6dde612495'- name: '/usr/local/bin/staticcheck'hashes:- hash: '73f89162bacda8dd2354021dc56dc2f3dba136e873e372312843cd895dde24a2'场景2
Terrier可以用来验证一个OCI镜像中是否存在特定文件，需提供目标文件的SHA256哈希。这个给功能可以帮助我们检查OCI镜像中是否存在恶意文件。
此场景下的样本YAML文件如下所示：
mode: image# verbose: true# veryverbose: trueimage: alpinetest.tarhashes:- hash: '8b7c559b8cccca0d30d01bc4b5dc944766208a53d18a03aa8afe97252207521f'- hash: '22e88c7d6da9b73fbb515ed6a8f6d133c680527a799e3069ca7ce346d90649b2'- hash: '60a2c86db4523e5d3eb41a247b4e7042a21d5c9d483d59053159d9ed50c8aa41'- hash: '9a43cb726fef31f272333b236ff1fde4beab363af54d0bc99c304450065d9c96'场景3
Terrier可以用来在运行时对容器组件进行验证，并分析其中内容。
此场景下的样本YAML文件如下所示：
mode: containerverbose: true# veryverbose: true# image: latestgo13.tarpath: mergedfiles:- name: '/usr/local/bin/analysis.sh'hashes:- hash: '9adc0bf7362bb66b98005aebec36691a62c80d54755e361788c776367d11b105'- name: '/usr/local/go/bin/go'hashes:- hash: '23afbfab4f35ac90d9841a6e05f0d1487b6e0c3a914ea8dab3676c6dde612495'- name: '/usr/local/bin/staticcheck'hashes:- hash: '73f89162bacda8dd2354021dc56dc2f3dba136e873e372312843cd895dde24a2'- name: '/usr/local/bin/gosec'hashes:- hash: 'e7cb8304e032ccde8e342a7f85ba0ba5cb0b8383a09a77ca282793ad7e9f8c1f'- name: '/usr/local/bin/errcheck'hashes:- hash: '41f725d7a872cad4ce1f403938937822572e0a38a51e8a1b29707f5884a2f0d7'- name: '/var/lib/dpkg/info/apt.postrm' hashes:- hash: '6a8f9af3abcfb8c6e35887d11d41a83782***f5766d42bd1e32a38781cba0b1c'工具使用
样例1
Terrier提供了一个命令行接口，并使用了YAML。样本YAML配置如下：
mode: image# verbose: true# veryverbose: trueimage: alpinetest.tarfiles:- name: '/usr/local/go/bin/go'hashes:- hash: '8b7c559b8cccca0d30d01bc4b5dc944766208a53d18a03aa8afe97252207521f'- hash: '22e88c7d6da9b73fbb515ed6a8f6d133c680527a799e3069ca7ce346d90649b2aaa'- hash: '60a2c86db4523e5d3eb41a247b4e7042a21d5c9d483d59053159d9ed50c8aa41aaa'- hash: '8b7c559b8cccca0d30d01bc4b5dc944766208a53d18a03aa8afe97252207521faa'- name: '/usr/bin/delpart'hashes:- hash: '9a43cb726fef31f272333b236ff1fde4beab363af54d0bc99c304450065d9c96aaa'- name: '/usr/bin/stdbuf'hashes:- hash: '8b7c559b8cccca0d30d01bc4b5dc944766208a53d18a03aa8afe97252207521faa'- hash: '22e88c7d6da9b73fbb515ed6a8f6d133c680527a799e3069ca7ce346d90649b2aa'- hash: '60a2c86db4523e5d3eb41a247b4e7042a21d5c9d483d59053159d9ed50c8aa41aa'在下面的样例中，我们通过上述YAML来让Terrier验证多个文件是否存在：
$./terrier [+] Loading config: cfg.yml[+] Analysing Image[+] Docker Image Source: alpinetest.tar[*] Inspecting Layer: 05c3c2c60920f68***6d3c66e0f6148b81a8b0831388c2d61be5ef02190bcd1f[*] Inspecting Layer: 09c25a178d8a6f8b984f3e72ca5ec966215b24a700ed135dc062ad925aa5eb23[*] Inspecting Layer: 36351e8e1da92268d40245cfbcd499a1173eeacc23be428386c8fc0a16f0b10a[*] Inspecting Layer: 7224ca1e886eeb7e63a9e978b1a811ed52f4a53ccb65f7c510fa04a0d1103fdf[*] Inspecting Layer: 7a2e464d80c7a1d89dab4321145491fb94865099c59975cfc840c2b8e7065014[*] Inspecting Layer: 88a583fe02f250344f89242f88309c666671042b032411630de870a111bea971[*] Inspecting Layer: 8db14b6fdd2cf8b4c122824531a4d85e07f1fecd6f7f43eab7f2d0a90d8c4bf2[*] Inspecting Layer: 9196e3376d1ed69a647e728a444662c10ed21feed4ef7aaca0d10f452240a09a[*] Inspecting Layer: 92db9b9e59a64cdf486203189d02acff79c3360788b62214a49d2263874ee811[*] Inspecting Layer: bc4bb4a45da628724c9f93400a9149b2dd8a5d437272cb4e572cfaec64512d98[*] Inspecting Layer: be7d600e4e8ed3000e342ef6482211350069d935a14aeff4d9fc3289e1426ed3[*] Inspecting Layer: c4cec85dfa44f0a8856064922cff1c39b872***6dd002e33664d11a80f75a149[*] Inspecting Layer: c998d6f023b7b9e3c186af19bcd1c2574f0d01b943077281ac5bd32e02dc57a5[!] All components were identified and verified: (493/493)样例2
验证镜像中是否存在任意文件，需提供目标文件的SHA256哈希：
mode: image# verbose: true# veryverbose: trueimage: 1070caa1a8d89440829fd35d9356143a9d6185fe7f7a015b992ec1d8aa81c78a.tarhashes:- hash: '8b7c559b8cccca0d30d01bc4b5dc944766208a53d18a03aa8afe97252207521f'- hash: '22e88c7d6da9b73fbb515ed6a8f6d133c680527a799e3069ca7ce346d90649b2'- hash: '60a2c86db4523e5d3eb41a247b4e7042a21d5c9d483d59053159d9ed50c8aa41'- hash: '9a43cb726fef31f272333b236ff1fde4beab363af54d0bc99c304450065d9c96'运行Terrier：
./terrier [+] Loading config: cfg.yml[+] Docker Image Source: golang.tar[*] Inspecting Layer: 1070caa1a8d89440829fd35d9356143a9d6185fe7f7a015b992ec1d8aa81c78a[*] Inspecting Layer: 414833cdb33683ab8607565da5f40d3dc3f721e9a59e14e373fce206580ed40d[*] Inspecting Layer: 6bd93c6873c822f793f770fdf3973d8a02254a5a0d60d67827480797f76858aa[*] Inspecting Layer: c40c240ae37a2d2982ebcc3a58e67bf07aeaebe0796b5c5687045083ac6295ed[*] Inspecting Layer: d2850df0b6795c00bdce32eb9c1ad9afc0640c2b9a3e53ec5437fc5539b1d71a[*] Inspecting Layer: f0c2fe7dbe3336c8ba06258935c8dae37dbecd404d2d9cd74c3587391a11b1af[!] Found file 'f0c2fe7dbe3336c8ba06258935c8dae37dbecd404d2d9cd74c3587391a11b1af/usr/bin/curl' with hash: 9a43cb726fef31f272333b236ff1fde4beab363af54d0bc99c304450065d9c96[*] Inspecting Layer: f2d913644763b53196cfd2597f21b9739535ef9d5bf9250b9fa21ed223fc29e3echo $?1项目地址
Terrier：https://github.com/heroku/terrier
*参考来源：heroku，FB小编Alpha_h4ck编译，来自FreeBuf.COM
本文参与 腾讯云自媒体同步曝光计划，分享自微信公众号。
原始发表：2020-06-13，如有侵权请联系 cloudcommunity@tencent.com 删除
评论
登录后参与评论
推荐阅读
腾讯云开发者
