9 - CVE-2023-27830

Executive Summary

Informations
Name	CVE-2023-27830	First vendor Publication	2023-04-12
Vendor	Cve	Last vendor Modification	2023-04-24

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Overall CVSS Score	9
Base Score	9	Environmental Score	9
impact SubScore	6	Temporal Score	9
Exploitabality Sub Score	2.3

Attack Vector	Network	Attack Complexity	Low
Privileges Required	Low	User Interaction	Required
Scope	Changed	Confidentiality Impact	High
Integrity Impact	High	Availability Impact	High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score	N/A	Attack Range	N/A
Cvss Impact Score	N/A	Attack Complexity	N/A
Cvss Expoit Score	N/A	Authentication	N/A
Calculate full CVSS 2.0 Vectors scores

Detail

TightVNC before v2.8.75 allows attackers to escalate privileges on the host operating system via replacing legitimate files with crafted files when executing a file transfer. This is due to the fact that TightVNC runs in the backend as a high-privileges account.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-27830

CWE : Common Weakness Enumeration

%	Id	Name
100 %	CWE-269	Improper Privilege Management

CPE : Common Platform Enumeration

Type	Description	Count
Application	Tightvnc cpe:2.3:a:tightvnc:tightvnc:1.3.9:::::::* cpe:2.3:a:tightvnc:tightvnc:1.3.10:::::::* cpe:2.3:a:tightvnc:tightvnc:1.2.5:::::::* cpe:2.3:a:tightvnc:tightvnc:1.2.4:::::::* cpe:2.3:a:tightvnc:tightvnc:1.2.3:::::::* cpe:2.3:a:tightvnc:tightvnc:1.2.2:::::::* cpe:2.3:a:tightvnc:tightvnc:1.2.1:::::::* cpe:2.3:a:tightvnc:tightvnc:1.2.0:::::::* cpe:2.3:a:tightvnc:tightvnc:1.2:::::::* cpe:2.3:a:tightvnc:tightvnc::::::::	10

Sources (Detail)

Source	Url
MISC	https://medium.com/nestedif/vulnerability-disclosure-privilege-escalation-tig... https://www.tightvnc.com/news.php https://www.tightvnc.com/whatsnew.php