Vulnerability Details : CVE-2020-17400
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 kext. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor. Was ZDI-CAN-11304.
Vulnerability category: Execute code
Products affected by CVE-2020-17400
- cpe:2.3:a:parallels:parallels_desktop:*:*:*:*:*:macos:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-17400
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-17400
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
2.0
|
6.0
|
Zero Day Initiative | |
|
8.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
2.0
|
6.0
|
NIST |
CWE ids for CVE-2020-17400
-
The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.Assigned by: zdi-disclosures@trendmicro.com (Primary)
References for CVE-2020-17400
-
https://kb.parallels.com/en/125013
Parallels Desktop Security UpdatesVendor Advisory
-
https://www.zerodayinitiative.com/advisories/ZDI-20-1018/
ZDI-20-1018 | Zero Day InitiativeThird Party Advisory;VDB Entry
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