Denial of service in Bitdefender Endpoint Security Tools for Windows



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-3641
CWE-ID CWE-59
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Endpoint Security Tools
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor Bitdefender

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Link following

EUVDB-ID: #VU60121

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-3641

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

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a link following issue within the Endpoint Agent in the EPAG component. A local user can abuse the service to overwrite a file and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Endpoint Security Tools: 7.1.2.33

CPE2.3 External links

https://www.bitdefender.com/support/security-advisories/improper-link-resolution-before-file-access-in-bitdefender-gravityzone-va-9921
https://www.zerodayinitiative.com/advisories/ZDI-22-143/


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.



###SIDEBAR###