为不受支持的 Salt 版本提供的向后移植安全补丁

本仓库中的补丁针对以下 CVE：

CVE-2020-11651 & CVE-2020-11652 - https://labs.f-secure.com/advisories/saltstack-authorization-bypass

此外还包含以下缺陷修复：

修复拼写错误 _minion_runner -> minion_runner。参见：https://docs.saltstack.com/en/latest/topics/releases/3000.2.html#known-issue
修复拼写错误 _find_file_and_stat -> _find_hash_and_stat。参见 https://github.com/rossengeorgiev/salt-security-backports/issues/1
从白名单中移除 run_func
补上缺失的 import salt.utils.verify

上述修复已包含在 SaltStack 的最新版本中，即 v2019.2.5 和 v3000.3。

检查你的 salt-master 是否存在漏洞

检查脚本需要以 root 身份在本地 salt-master 上运行

python salt-cve-check.py

Salt 2017.7.8 的示例输出：

[+] Salt version: 2017.7.8
[ ] This version of salt is vulnerable! Check results below
[+] Checking salt-master (127.0.0.1:4506) status... ONLINE
[+] Checking if vulnerable to CVE-2020-11651... YES
[+] Checking if vulnerable to CVE-2020-11652 (read_token)... YES
[+] Checking if vulnerable to CVE-2020-11652 (read)... YES
[+] Checking if vulnerable to CVE-2020-11652 (write1)... YES
[+] Checking if vulnerable to CVE-2020-11652 (write2)... YES

应用补丁

# locate the salt package directory (use python3 if necessary)

python -c "import imp; print(imp.find_module('salt')[1])"

# in my case: /usr/lib/python2.7/dist-packages/salt
# apply patches
# (adding -b flag will backup file before modifications at same path with .orig suffix)
# (patch can be reversed running the same command with -R flag)

patch -p2 -d /usr/lib/python2.7/dist-packages/salt < 2017.7.8_CVE-2020-11651.patch
patch -p2 -d /usr/lib/python2.7/dist-packages/salt < 2017.7.8_CVE-2020-11652.patch

# restart salt-master

systemctl restart salt-master
# or
service salt-master restart

重新运行检查脚本：

user@salt # python salt-cve-check.py
[+] Salt version: 2017.7.8
[ ] This version of salt is vulnerable! Check results below
[+] Checking salt-master (127.0.0.1:4506) status... ONLINE
[+] Checking if vulnerable to CVE-2020-11651... NO
[+] Checking if vulnerable to CVE-2020-11652 (read_token)... NO
[+] Checking if vulnerable to CVE-2020-11652 (read)... NO
[+] Checking if vulnerable to CVE-2020-11652 (write1)... NO
[+] Checking if vulnerable to CVE-2020-11652 (write2)... NO

salt-security-backports

最受欢迎

为不受支持的 Salt 版本提供的向后移植安全补丁

检查你的 salt-master 是否存在漏洞

应用补丁