SB2019073002 - Security restrictions bypass in OpenSSL for Windows
Published: July 30, 2019
Security Bulletin ID
SB2019073002
Severity
Low
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect default permissions (CVE-ID: CVE-2019-1552)
The vulnerability allows a local user to bypass security restrictions.
The vulnerability exists due to OpenSSL uses insecure by default directory with potentially insecure permissions for the OPENSSLDIR on Windows. A local user can modify OpenSSL's default configuration within the 'C:/usr/local' folder, insert CA certificates, modify (or even replace) existing engine modules and bypass security restrictions, based on OpenSSL security mechanisms.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.
References
- 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://www.openssl.org/news/secadv/20190730.txt