Cryptographic issues in OpenSSL

1) Cryptographic issues

EUVDB-ID: #VU91588

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-0204

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to modify data on the system.

The vulnerability exists due to remote SSL servers allowed to conduct RSA-to-EXPORT_RSA downgrade attacks and facilitate brute-force decryption by offering a weak ephemeral RSA key in a noncompliant role, related to the FREAK issue. A remote attacker can modify data on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenSSL: before 1.0.1k

External links

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10679
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
http://marc.info/?l=bugtraq&m=142496179803395&w=2
http://marc.info/?l=bugtraq&m=142496289803847&w=2
http://marc.info/?l=bugtraq&m=142720981827617&w=2
http://marc.info/?l=bugtraq&m=142721102728110&w=2
http://marc.info/?l=bugtraq&m=142895206924048&w=2
http://marc.info/?l=bugtraq&m=143213830203296&w=2
http://marc.info/?l=bugtraq&m=143748090628601&w=2
http://marc.info/?l=bugtraq&m=144043644216842&w=2
http://marc.info/?l=bugtraq&m=144050155601375&w=2
http://marc.info/?l=bugtraq&m=144050205101530&w=2
http://marc.info/?l=bugtraq&m=144050254401665&w=2
http://marc.info/?l=bugtraq&m=144050297101809&w=2
http://rhn.redhat.com/errata/RHSA-2015-0066.html
http://rhn.redhat.com/errata/RHSA-2015-0800.html
http://rhn.redhat.com/errata/RHSA-2015-0849.html
http://rhn.redhat.com/errata/RHSA-2016-1650.html
http://support.novell.com/security/cve/CVE-2015-0204.html
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150310-ssl
http://www.debian.org/security/2015/dsa-3125
http://www.mandriva.com/security/advisories?name=MDVSA-2015:019
http://www.mandriva.com/security/advisories?name=MDVSA-2015:062
http://www.mandriva.com/security/advisories?name=MDVSA-2015:063
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
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/bulletinjan2015-2370101.html
http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.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
http://www.securityfocus.com/bid/71936
http://www.securityfocus.com/bid/91787
http://www.securitytracker.com/id/1033378
http://www-01.ibm.com/support/docview.wss?uid=swg21883640
http://www-304.ibm.com/support/docview.wss?uid=swg21960769
http://bto.bluecoat.com/security-advisory/sa88
http://bto.bluecoat.com/security-advisory/sa91
http://exchange.xforce.ibmcloud.com/vulnerabilities/99707
http://freakattack.com/
http://github.com/openssl/openssl/commit/ce325c60c74b0fa784f5872404b722e120e5cab0
http://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04773241
http://kc.mcafee.com/corporate/index?page=content&id=SB10102
http://kc.mcafee.com/corporate/index?page=content&id=SB10108
http://kc.mcafee.com/corporate/index?page=content&id=SB10110
http://security.gentoo.org/glsa/201503-11
http://support.apple.com/HT204659
http://support.citrix.com/article/CTX216642
http://www.openssl.org/news/secadv_20150108.txt
http://www.openssl.org/news/secadv_20150319.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.