CVE-2019-1552 Information

Description

OpenSSL has internal defaults for a directory tree where it can find a configuration file as well as certificates used for verification in TLS. This directory is most commonly referred to as OPENSSLDIR and is configurable with the –prefix / –openssldir configuration options. For OpenSSL versions 1.1.0 and 1.1.1 the mingw configuration targets assume that resulting programs and libraries are installed in a Unix-like environment and the default prefix for program installation as well as for OPENSSLDIR should be ‘/usr/local’. However mingw programs are Windows programs and as such find themselves looking at sub-directories of ‘C:/usr/local’ which may be world writable which enables untrusted users to modify OpenSSL’s default configuration insert CA certificates modify (or even replace) existing engine modules etc. For OpenSSL 1.0.2 ‘/usr/local/ssl’ is used as default for OPENSSLDIR on all Unix and Windows targets including Visual C builds. However some build instructions for the diverse Windows targets on 1.0.2 encourage you to specify your own –prefix. OpenSSL versions 1.1.1 1.1.0 and 1.0.2 are affected by this issue. Due to the limited scope of affected deployments this has been assessed as low severity and therefore we are not creating new releases at this time. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Reference

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=54aa9d51b09d67e90db443f682cface795f5af9e https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=b15a19c148384e73338aa7c5b12652138e35ed28 https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=d333ebaf9c77332754a9d5e111e2f53e1de54fdd https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=e32bc855a81a2d48d215c506bdeb4f598045f7e9 https://lists.fedoraproject.org/archives/list/[email protected]/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/ https://lists.fedoraproject.org/archives/list/[email protected]/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/ https://lists.fedoraproject.org/archives/list/[email protected]/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/ https://security.netapp.com/advisory/ntap-20190823-0006/ https://support.f5.com/csp/article/K94041354 https://support.f5.com/csp/article/K94041354?utm_source=f5support&utm_medium=RSS https://www.openssl.org/news/secadv/20190730.txt https://www.oracle.com/security-alerts/cpuapr2020.html https://www.oracle.com/security-alerts/cpujan2020.html https://www.oracle.com/security-alerts/cpujul2020.html https://www.oracle.com/security-alerts/cpuoct2020.html https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html https://www.tenable.com/security/tns-2019-08 https://www.tenable.com/security/tns-2019-09

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

3.3