OpenSSL 的公告如下:https://www.openssl.org/news/secadv_20140407.txt
A missing bounds check in the handling of the TLS heartbeat extension can be used to reveal up to 64k of memory to a connected client or server. Only 1.0.1 and 1.0.2-beta releases of OpenSSL are affected including 1.0.1f and 1.0.2-beta1.要如何測試自己的網站有沒有這樣的漏洞呢?可以利用以下的網站或工具直接查詢。
直接輸入 Domain 即可查詢,例如「fbi.gov」。
使用方法直接執行「python ssltest.py ifttt.com」,或是用「-p」指定特定 SSL 連接埠。畫面上會顯示出記憶體資料,可能內含機敏資料例如 private key、session cookie 等。
原始碼如下:
使用方法直接執行「perl check-ssl-heartbleed.pl mail.XXXXXX.gov.tw:443」,可在網域名稱後指定特定 SSL 連接埠。
使用說明:
如果發現自己的伺服器有這樣的漏洞,該怎麼辦呢?
詳細討論與建議可以參考
Heartbleed: What is it and what are options to mitigate it? http://serverfault.com/questions/587329/heartbleed-what-is-it-and-what-are-options-to-mitigate-it
真的會有攻擊者利用這樣的攻擊手法嗎?目前在烏雲 wooyun平台上已經滿滿的資安研究員開始回報網站含有 OpenSSL 漏洞。也有駭客在嘗試撰寫更有效的攻擊利用程式,想要藉此把平常打不下來的網站一舉攻陷。
怎樣的站台會是重點目標呢?含有會員機制的網站特別如此,例如 Web Mail、社群網站等等。因此不少企業要多注意了,例如全世界最大的社群網站 Facebook、SlideShare、台灣知名電信公司網站、社交平台、網路銀行、NAS,都會在這波的攻擊範圍之內。如果沒有儘速修復,等到更有效的攻擊程式出現,就真的等著失血了。
技術發布
Communication Technologies is considered to be an effective method for the elimination of the development gap between countries and disparities and inequalities between individuals. This idea is accepted by all scholars of the information society. Information and communication technologies can be used as a means to poor people, who is exposed to social exclusion, make their voices heard. It is also observed that the people socialized over time, increased the quality and level of sharing and found efficient and entertaining communication possibilities with people who they don’t know. Because of that, it has a vital importance of information and communication technologies. Because it allows people take steps from social exclusion to social inclusion. The studies done by Goodman on South Africa, by Jensen on China and by Bhavnani on Thailand, Indonesia and Malaysia shows that new media helps to reduce impact of poverty and breaks the cycle of poverty. It has also been obtained successful results in breaking the cycle of poverty when new media Technologies are provided in India, Brazil and Nepal. The aim of this study is to examine how the poverty information can be reduced and how people living in poverty can be get out of this cycle by providing information and communication technologies. It will first attempt to define new media explaining poverty information. The impact of these tools on cycle of poverty will be shown. As a result, it will be analyzed how information technologies contribute to fight against poverty by country examples.