Vulnerability Description
An issue was discovered in the server in Veritas Backup Exec through 16.2, 20.6 before hotfix 298543, and 21.1 before hotfix 657517. On start-up, it loads the OpenSSL library from the Installation folder. This library in turn attempts to load the /usr/local/ssl/openssl.cnf configuration file, which may not exist. On Windows systems, this path could translate to <drive>:\usr\local\ssl\openssl.cnf. A low privileged user can create a :\usr\local\ssl\openssl.cnf configuration file to load a malicious OpenSSL engine, resulting in arbitrary code execution as SYSTEM when the service starts. This gives the attacker administrator access on the system, allowing the attacker (by default) to access all data, access all installed applications, etc. If the system is also an Active Directory domain controller, then this can affect the entire domain.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Veritas | Backup Exec | >= 20.0, < 20.0.1188.2734 |
Related Weaknesses (CWE)
References
- https://www.kb.cert.org/vuls/id/429301Third Party AdvisoryUS Government Resource
- https://www.veritas.com/content/support/en_US/security/VTS20-010Vendor Advisory
- https://www.kb.cert.org/vuls/id/429301Third Party AdvisoryUS Government Resource
- https://www.veritas.com/content/support/en_US/security/VTS20-010Vendor Advisory
FAQ
What is CVE-2020-36167?
CVE-2020-36167 is a vulnerability with a CVSS score of 9.3 (CRITICAL). An issue was discovered in the server in Veritas Backup Exec through 16.2, 20.6 before hotfix 298543, and 21.1 before hotfix 657517. On start-up, it loads the OpenSSL library from the Installation fol...
How severe is CVE-2020-36167?
CVE-2020-36167 has been rated CRITICAL with a CVSS base score of 9.3/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-36167?
Check the references section above for vendor advisories and patch information. Affected products include: Veritas Backup Exec.