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ZdiCVE-2020-17393

HistoryAug 25, 2020 - 9:15 p.m.

CVE-2020-17393

2020-08-2521:15:13

CWE-20

zdi

web.nvd.nist.gov

cve-2020-17393

parallels desktop

local attack

information disclosure

vulnerability

security flaw

nvd

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

AI Score

6.2

Confidence

High

EPSS

Percentile

15.9%

JSON

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.

Affected configurations

Nvd

Vulners

Node

parallelsparallels_desktopRange<15.1.4macos

VendorProductVersionCPE
parallelsparallels_desktop*cpe:2.3:a:parallels:parallels_desktop:*:*:*:*:*:macos:*:*

Vendor	Product	Version	CPE
parallels	parallels_desktop	*	cpe:2.3:a:parallels:parallels_desktop::::::macos::*

CNA Affected

[
  {
    "product": "Desktop",
    "vendor": "Parallels",
    "versions": [
      {
        "status": "affected",
        "version": "15.1.3-47255"
      }
    ]
  }
]

References

kb.parallels.com/en/125013

www.zerodayinitiative.com/advisories/ZDI-20-1011/

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

AI Score

6.2

Confidence

High

EPSS

Percentile

15.9%

JSON

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