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OpenSSL CVE-2014-0160 (Heartbleed) 漏洞攻擊手法

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DEVCORE 資安公司寫了一篇 OpenSSL Heartbleed 全球駭客的殺戮祭典,你參與了嗎? 內如介紹如何透過工具攻擊及測試現有網站,也提供如何修正 OpenSSL 漏洞,Debian,Centos,FreeBSD 等。要檢查機器是否更新到正確版本,可以透過底下指令

$ openssl version -a

如果看到底下結果

OpenSSL 1.0.1e-fips 11 Feb 2013
built on: Tue Apr  8 02:39:29 UTC 2014
platform: linux-x86_64
options:  bn(64,64) md2(int) rc4(16x,int) des(idx,cisc,16,int) idea(int) blowfish(idx)
compiler: gcc -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DKRB5_MIT -m64 -DL_ENDIAN -DTERMIO -Wall -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -Wa,--noexecstack -DPURIFY -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM -DGHASH_ASM
OPENSSLDIR: "/etc/pki/tls"
engines:  dynamic

更新時間為 4/7 號以後代表已經修正。透過 Heartbleed test page 可以查詢測試網站是否修正 Heartbleed,最後請記得重新產生 certificate signing request (CSR)。

$ openssl req -new -nodes -days 365 -keyout www.mydomain.com.key -out www.mydomain.com.csr

底下是 DEVCORE 錄製的攻擊手法 Demo 影片


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