CVE-2020-36167

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Summary

CVECVE-2020-36167
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-01-06 01:15:00 UTC
Updated2021-01-14 16:59:00 UTC
DescriptionAn 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.

Risk And Classification

Problem Types: CWE-434

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Veritas Backup Exec All All All All
Application Veritas Backup Exec All All All All

References

ReferenceSourceLinkTags
VU#429301 - Veritas Backup Exec is vulnerable to privilege escalation due to OPENSSLDIR location CERT-VN www.kb.cert.org Third Party Advisory, US Government Resource
Backup Exec OpenSSL advisory | Veritas™ MISC www.veritas.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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