High severity · published Aug 25, 2020
CVE-2020-17396
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.4
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.4. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the prl_hypervisor module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11217.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
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
PD
Parallels Desktop · Parallels
before 16.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-17396
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-17396
Vendor Advisory
https://kb.parallels.com/en/125013
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1014/
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