Vulnerability Details : CVE-2020-17393
This vulnerability allows local attackers to disclose information on affected installations of Parallels Desktop 15.1.3-47255. 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 a pointer to be leaked after the handler is done. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel. Was ZDI-CAN-10520.
Vulnerability category: Input validationExecute code
Products affected by CVE-2020-17393
- cpe:2.3:a:parallels:parallels_desktop:*:*:*:*:*:macos:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-17393
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 23 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-17393
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
2.0
|
4.0
|
Zero Day Initiative | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
2.0
|
4.0
|
NIST |
CWE ids for CVE-2020-17393
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: zdi-disclosures@trendmicro.com (Primary)
References for CVE-2020-17393
-
https://kb.parallels.com/en/125013
Parallels Desktop Security UpdatesVendor Advisory
-
https://www.zerodayinitiative.com/advisories/ZDI-20-1011/
ZDI-20-1011 | Zero Day InitiativeThird Party Advisory;VDB Entry
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