Use of Password Hash Instead of Password for Authentication in Digi RealPort Protocol

1) Use of Password Hash Instead of Password for Authentication

EUVDB-ID: #VU80325

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4299

CWE-ID: CWE-836 - Use of Password Hash Instead of Password for Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to use of password hash instead of password for authentication in Digi RealPort Protocol. A remote attacker can perform a replay attack and bypass authentication to access connected equipment.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Digi RealPort for Windows: 4.8.488.0

​Digi RealPort for Linux: 1.9-40

​Digi Passport Console Server: All versions

​Digi CM Console Server: All versions

​Digi PortServer TS: All versions

​Digi PortServer TS MEI: All versions

​Digi PortServer TS MEI Hardened: All versions

​Digi PortServer TS M MEI: All versions

​Digi PortServer TS P MEI: All versions

​Digi One IAP Family: All versions

​Digi One IA: All versions

​Digi One SP IA: All versions

​Digi One SP: All versions

​Digi WR31: All versions

​Digi WR11 XT: All versions

​Digi WR44 R: All versions

​Digi WR21: All versions

​Digi Connect SP: All versions

​Digi ConnectPort TS 8/16: before 2.26.2.4

​Digi ConnectPort LTS 8/16/32: before 1.4.9

​Digi Connect ES: before 2.26.2.4

External links

http://www.cisa.gov/news-events/ics-advisories/icsa-23-243-04
http://www.digi.com/getattachment/resources/security/alerts/realport-cves/Dragos-Disclosure-Statement.pdf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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