PT-2020-14945 · Parallels · Parallels Desktop

Lucas Leong + 1 · Published 2020-08-18 · Updated 2020-08-31 · CVE-2020-17394

Positive Technologies (AI Summary)

CVSS v3.1

6.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Parallels Desktop version 15.1.4

Description This issue allows local attackers to disclose sensitive information on affected installations. An attacker must first obtain the ability to execute high-privileged code on the target guest system. The flaw exists within the OEMNet component due to the lack of proper validation of user-supplied data, resulting in a read past the end of an allocated buffer. This can be leveraged in conjunction with other issues to escalate privileges and execute code in the context of the hypervisor.

Recommendations For Parallels Desktop version 15.1.4, consider disabling the OEMNet component as a temporary workaround until a patch is available. Restrict access to sensitive information to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Validation of Array Index

Weakness Enumeration

CWE-129

Related Identifiers

CVE-2020-17394

ZDI-20-1012

Affected Products

Parallels Desktop

References · 4

• https://zerodayinitiative.com/advisories/ZDI-20-1012 · Security Note
• https://osv.dev/vulnerability/CVE-2020-17394 · Vendor Advisory
• https://kb.parallels.com/en/125013 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-17394 · Security Note