Vulnerability identifier: #VU80325

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Digi RealPort for Windows
Server applications / Other server solutions
​Digi RealPort for Linux
Server applications / Other server solutions
​Digi Passport Console Server
Server applications / Other server solutions
​Digi CM Console Server
Server applications / Other server solutions
​Digi PortServer TS
Server applications / Other server solutions
​Digi PortServer TS MEI
Server applications / Other server solutions
​Digi PortServer TS MEI Hardened
Server applications / Other server solutions
​Digi PortServer TS M MEI
Server applications / Other server solutions
​Digi PortServer TS P MEI
Server applications / Other server solutions
​Digi One IAP Family
Server applications / Other server solutions
​Digi One IA
Server applications / Other server solutions
​Digi One SP IA
Server applications / Other server solutions
​Digi One SP
Server applications / Other server solutions
​Digi WR31
Server applications / Other server solutions
​Digi WR11 XT
Server applications / Other server solutions
​Digi WR44 R
Server applications / Other server solutions
​Digi WR21
Server applications / Other server solutions
​Digi Connect SP
Server applications / Other server solutions
​Digi ConnectPort TS 8/16
Server applications / Other server solutions
​Digi ConnectPort LTS 8/16/32
Server applications / Other server solutions
​Digi Connect ES
Server applications / Other server solutions

Vendor: Digi International Inc.

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

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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

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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.