Parallels Desktop 15.1.2-47123 xHCI toctou

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Parallels Desktop 15.1.2-47123. This vulnerability affects unknown code of the component xHCI. Performing a manipulation results in toctou. This vulnerability is reported as CVE-2020-8873. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in Parallels Desktop 15.1.2-47123. This affects some unknown processing of the component xHCI. The manipulation with an unknown input leads to a toctou vulnerability. CWE is classifying the issue as CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.2-47123. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the xHCI component. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor. Was ZDI-CAN-10031.

The weakness was disclosed 03/23/2020. This vulnerability is uniquely identified as CVE-2020-8873 since 02/11/2020. Attacking locally is a requirement. Additional levels of successful authentication are required for exploitation. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-152070, VDB-152069, VDB-152066 and VDB-152065 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 4.2
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.2
NVD Vector: 🔍

CNA Base Score: 8.2
CNA Vector (Zero Day Initiative): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Toctou
CWE: CWE-367 / CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/11/2020 🔍
03/23/2020 +41 days 🔍
03/24/2020 +1 days 🔍
05/11/2024 +1509 days 🔍

Sourcesinfo

Advisory: zerodayinitiative.com
Status: Not defined

CVE: CVE-2020-8873 (🔍)
GCVE (CVE): GCVE-0-2020-8873
GCVE (VulDB): GCVE-100-152067
See also: 🔍

Entryinfo

Created: 03/24/2020 11:23
Updated: 05/11/2024 07:41
Changes: 03/24/2020 11:23 (35), 03/24/2020 11:28 (11), 05/11/2024 07:35 (16), 05/11/2024 07:41 (19)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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