CVEs-PoC/2015/CVE-2015-0285.md

CVE-2015-0285

Description

The ssl3_client_hello function in s3_clnt.c in OpenSSL 1.0.2 before 1.0.2a does not ensure that the PRNG is seeded before proceeding with a handshake, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by sniffing the network and then conducting a brute-force attack.

POC

Reference

• http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
• http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
• http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
• http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
• http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
• https://kc.mcafee.com/corporate/index?page=content&id=SB10110

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/Live-Hack-CVE/CVE-2015-0285
• https://github.com/chnzzh/OpenSSL-CVE-lib