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SSL Medium Strength Cipher Suites Supported-远程服务支持使用中等强度的SSL密码 #36

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AI0TSec opened this issue Jul 24, 2019 · 0 comments
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AI0TSec commented Jul 24, 2019

漏洞描述:

Nessus检测到SSL Medium Strength Cipher Suites Supported漏洞。中等强度为使用密钥长度至少为64位且小于112位的任何加密,若攻击者位于同一物理网络上,则中等强度加密存在风险。

漏洞修复:

IISCrypto可检查当前服务器内所使用的Cipher(加密方式)

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运行-regedit-HKey_Local_Machine\System\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers
当前Ciphers下无任何信息

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使用IISCrypto选择最佳实践“Best Practices”或根据漏洞扫描报告中指出的SSL Medium Strength Cipher进行去除。应用完成后重启即可,或直接勾选右下角的Reboot进行自动重启

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漏洞验证:

nmap -sV -p 3389 --script ssl-enum-ciphers TargetIP

该方法支持检测漏洞:
SSL/TLS RC4 信息泄露漏洞(CVE-2013-2566)
SSL/TLS 服务器瞬时 Diffie-Hellman 公共密钥过弱
SSL/TLS 受诫礼(BAR-MITZVAH)攻击漏洞(CVE-2015-2808)
SSL/TLS协议信息泄露漏洞(CVE-2016-2183)

漏洞修复加固前:least strength: C
漏洞修复加固后:least strength: A

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