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.
Advisories 2
- ICSA-22-349-21 Siemens SCALANCE X-200RNA Switch Devices CISA ICS & IT advisories · Dec 13, 2022
- SSA-412672 SSA-412672: Multiple OpenSSL and OpenSSH Vulnerabilities in SCALANCE X-200RNA Switch Devices before V3.2.7 Siemens ProductCERT · Dec 13, 2022
References
- https://kc.mcafee.com/corporate/index?page=content&id=SB10110
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=e1b568dd2462f7cacf98f3d117936c34e2849a6b
- HPSBMU03409 vendor-advisory
- https://bto.bluecoat.com/security-advisory/sa92
- https://www.openssl.org/news/secadv_20150319.txt
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
- HPSBMU03380 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1202410
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- HPSBMU03397 vendor-advisory
- 1031929 vdb-entry
- 73234 vdb-entry
- GLSA-201503-11 vendor-advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf