Multiple vulnerabilities in Parallels Desktop



| Updated: 2024-08-09
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-27326
CVE-2023-27327
CVE-2023-27328
CWE-ID CWE-22
CWE-367
CWE-91
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #3 is available.
Vulnerable software
 Parallels Desktop
Operating systems & Components / Operating system package or component

Vendor Parallels

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Path traversal

EUVDB-ID: #VU73226

Risk: Low

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2023-27326

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a local user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the Toolgate component. A local administrator can send a specially crafted HTTP request and execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Parallels Desktop: before 18.1.1

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-23-221/
https://kb.parallels.com/125013


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU73233

Risk: Low

CVSSv4.0: 6.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2023-27327

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a time-of-check-time-of-use (TOCTOU) race condition within the Toolgate component. A local administrator can gain elevated privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Parallels Desktop: before 18.1.1

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-23-215/
https://kb.parallels.com/125013


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) XML injection

EUVDB-ID: #VU73228

Risk: Low

CVSSv4.0: 6.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2023-27328

CWE-ID: CWE-91 - XML Injection

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper input validation when processing XML data within the Toolgate component. A local user can pass specially crafted XML data to the application and gain elevated privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Parallels Desktop: before 18.1.1

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-23-220/
https://kb.parallels.com/125013


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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