CVE-2020-8103

Link Resolution Privilege Escalation Vulnerability in Bitdefender Antivirus Free (VA-8604)

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the improper handling of symbolic links in Bitdefender Antivirus Free can allow an unprivileged user to substitute a quarantined file, and restore it to a privileged location. This issue affects Bitdefender Antivirus Free versions prior to 1.0.17.178.

Una vulnerabilidad en el manejo inapropiado de enlaces simbólicos en Bitdefender Antivirus Free, puede permitir a un usuario no privilegiado sustituir un archivo en cuarentena y restaurarlo en una ubicación privilegiada. Este problema afecta a Bitdefender Antivirus Free versiones anteriores a 1.0.17.178

*Credits: Ilias Dimopoulos of RedyOps Research Labs

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-28 CVE Reserved
2020-06-05 CVE Published
2020-06-08 First Exploit
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-59: Improper Link Resolution Before File Access ('Link Following')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/RedyOpsResearchLabs/-CVE-2020-8103-Bitdefender-Antivirus-Free-EoP	2020-06-08

URL	Date	SRC

URL	Date	SRC
https://www.bitdefender.com/support/security-advisories/link-resolution-privilege-escalation-vulnerability-bitdefender-antivirus-free-va-8604	2020-06-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Bitdefender Search vendor "Bitdefender"		Antivirus 2020 Search vendor "Bitdefender" for product "Antivirus 2020"				< 1.0.17.178 Search vendor "Bitdefender" for product "Antivirus 2020" and version " < 1.0.17.178"		free		Affected