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58 lines
5.4 KiB
Markdown
新的OpenSSL分支未包含Heartbleed漏洞，但需要认真看待
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> 摘要：当被最新的OpenSSL安全问题困扰时，你最好解决它，虽然它并不像Heartbleed那样糟糕。
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这一周对于开源的Secure Socket Layer （SSL）来说真是糟糕的一周。
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首先，[GnuTLS低调的宣称，存在一个不大][1]但确实存在的缺陷。然后，大范围流行的OpenSSL被发现包含一个[中间人漏洞][2]。在[Heartbleed漏洞][3]惨剧后，OpenSSL要醒醒了。
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这个漏洞，根据谷歌高级软件工程师Adam Langley描述，已经[至少存在了15年时间][4]。可惜Core Infrastructure Initiative(CII)[提供了让更多的程序员来拯救OpenSSL的资金][5]，却尚未来得及发挥作用。
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也就是说这个漏洞依然是和Heartbleed漏洞一样糟糕。对于一些新手，攻击者需要在系统和浏览器或其它启用了SSL的客户端之间来利用这个安全漏洞。
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尽管它只是可能被利用，你依然需要尽可能快的通过升级来解决这个漏洞。就像[NTT Com Security][6]的评估服务负责人Chris Camejo在邮件采访里说的，“这很糟糕，因为已经存在了这么长的时间，看起来传播范围相当广泛。”
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他补充到：“如果利用它，攻击者可以解密流量。从SSL的设计目的看，这是一个很严重的问题。SSL被广泛地用来在网站和邮件中保护很多的密码，信用卡卡号和其他的敏感信息。”
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在另外一个采访中，Red Hat的产品安全高级负责人Mark Cox详细深入地介绍了[细节][7]。Cox说，OpenSSL已修正了一些安全缺陷，但是我们需要想办法告诉人们不要因为Heartbleed而陷入恐慌。
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Cox解释说，Heartbleed漏洞在公布之前得到了修补，但利用此漏洞的消息在修补程序之前传开，因此在这个问题上招致了许多抱怨。最新的情况，已有七个安全问题得到了修补，但其中只有两项需要管理员和用户的关注。
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Cox继续说道，第一个，是数据报传输层安全 (DTLS)的bug。到目前为止，还没有已知的攻击，但是存在针对它攻击成功的潜在性。
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因此，虽然DTLS使用不广泛，如果您确实在使用它，它应尽快修补。
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Cox然后说，“这个问题的实际上是中间人攻击”。实际上，真的要有个“在中间的”人，来利用易受攻击的服务器和客户端之间的漏洞。
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但如果有人真的这样做到了，他们就能“绕过SSL并拿到原始数据...这是一个相当严重的问题”。
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但是，如同从理论上讲任何人都可以利用Heartbleed漏洞来攻击SSL服务器。攻击并利用此漏洞需要能接触到客户端和服务器之间的通信网络。例如，成功的攻击可能需要架设一个假的公开Wi-Fi接入点，才能攻击到使用这个WIFI的Android版本的Chrome网络浏览器与未安装修补程序的Web服务器之间的SSL通讯。幸运的是，谷歌[已经发布了更新的版本的浏览器][8]，35.0.1916.141，以消除此问题。
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Cox继续说，最易受攻击的系统是未安装修补程序的Android设备使用一个假的Wi-Fi接入点。Morrell补充说因为Android用户并没有被他们的手机供应商和电信公司重视，安全漏洞更新前他们可能会受漏洞影响相当长的时间。
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幸运的是，如果他们用连接的服务器已经更新，他们也不会受到攻击。
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OpenSSL安全社区自5月初以来已经知道这个问题。社区与Red Hat、其他主要Linux和开源社团和硬件供应商，要解决这个问题，不只是简单修补bug，而且要测试修复，以便他们可以确认漏洞已经修复，大家都已经安全了，而没有引入任何新的安全问题，并可在大多数 OpenSSL服务器和客户端的组合上工作。
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现在，这个补丁已经有了，OpenSSL试着通过补丁解决安全缺陷，向公众表明对这些问题不必有任何不必要的恐慌。Cox补充说，主要的Linux供应商，如Red Hat和Ubuntu，已经有可用的修补程序。
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所有的管理员都需要给服务器下载并安装补丁，而不是放任安全漏洞。
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--------------------------------------------------------------------------------
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via: http://www.zdnet.com/new-openssl-breech-is-no-heartbleed-but-needs-to-be-taken-seriously-7000030273/
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译者：[lolipop](https://github.com/stduolc) 校对：[wxy](https://github.com/wxy)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[1]:http://www.zdnet.com/another-serious-gnutls-bug-exposes-linux-clients-to-server-attacks-7000030205
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[2]:http://www.zdnet.com/openssl-fixes-another-severe-vulnerability-7000030253/
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[3]:http://www.zdnet.com/heartbleed-serious-openssl-zero-day-vulnerability-revealed-7000028166
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[4]:https://www.imperialviolet.org/2014/06/05/earlyccs.html
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[5]:http://www.zdnet.com/corporations-put-their-cash-where-their-open-source-security-is-7000030023/
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[6]:http://www.nttcomsecurity.com/us/
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[7]:http://ec.libsyn.com/p/6/a/5/6a58036510bae37c/CloudEvangelistPodcast_Ep92_MarkCox.mp3?d13a76d516d9dec20c3d276ce028ed5089ab1ce3dae902ea1d06c88537d1ce596fdc&c_id=7251647)
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[8]:http://googlechromereleases.blogspot.com/2014/06/chrome-for-android-update.html |