#VU20850 Insecure cryptographic storage in Defender


Published: 2019-09-04

Vulnerability identifier: #VU20850

Vulnerability risk: Medium

CVSSv3.1: 6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: N/A

CWE-ID: CWE-310

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Defender
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: One Identity

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to the software stores token seeds, PAP secrets, and user passwords in Active Directory attributes. Defender passwords are hashed using MD5 in conjunction with a static key for obfuscation, which allows a remote authenticated user to read the computed hash from the defender-user TokenData attribute in Active Directory and then use it in an offline brute force attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Defender: 5.9.3

External links
http://seclists.org/fulldisclosure/2019/Sep/4

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability


Insecure cryptographic storage in Defender