High severity · published Oct 21, 2020
CVE-2020-10138
Acronis Cyber Backup 12.5 and Cyber Protect 15 include an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory within C:\jenkins_agent\
7.8
CVSS
0.5%
EPSS
No
On KEV
Description
Acronis Cyber Backup 12.5 and Cyber Protect 15 include an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory within C:\jenkins_agent\. Acronis Cyber Backup and Cyber Protect contain a privileged service that uses this OpenSSL component. Because unprivileged Windows users can create subdirectories off of the system root, a user can create the appropriate path to a specially-crafted openssl.cnf file to achieve arbitrary code execution with SYSTEM privileges.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CB
Cyber Backup · Acronis
before 12.5 · source: NVD
CP
Cyber Protect · Acronis
before 15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10138
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-10138
Third Party Advisory
https://www.kb.cert.org/vuls/id/114757
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