PT-2020-20656 · Phoenix Contact · Phoenix Contact Tc Router 3002T-4G+3

Thomas Weber · Published 2020-03-12 · Updated 2020-03-16 · CVE-2020-9435

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions PHOENIX CONTACT TC ROUTER 3002T-4G versions 2.05.3 and earlier PHOENIX CONTACT TC ROUTER 2002T-3G versions 2.05.3 and earlier PHOENIX CONTACT TC ROUTER 3002T-4G VZW versions 2.05.3 and earlier PHOENIX CONTACT TC ROUTER 3002T-4G ATT versions 2.05.3 and earlier PHOENIX CONTACT TC CLOUD CLIENT 1002-4G versions 2.03.17 and earlier PHOENIX CONTACT TC CLOUD CLIENT 1002-TXTX versions 1.03.17 and earlier

Description The devices contain a hardcoded certificate (and key) that is used by default for web-based services on the device. This allows for impersonation, man-in-the-middle, or passive decryption attacks if the generic certificate is not replaced by a device-specific certificate during installation.

Recommendations For PHOENIX CONTACT TC ROUTER 3002T-4G versions 2.05.3 and earlier, replace the generic certificate with a device-specific certificate during installation. For PHOENIX CONTACT TC ROUTER 2002T-3G versions 2.05.3 and earlier, replace the generic certificate with a device-specific certificate during installation. For PHOENIX CONTACT TC ROUTER 3002T-4G VZW versions 2.05.3 and earlier, replace the generic certificate with a device-specific certificate during installation. For PHOENIX CONTACT TC ROUTER 3002T-4G ATT versions 2.05.3 and earlier, replace the generic certificate with a device-specific certificate during installation. For PHOENIX CONTACT TC CLOUD CLIENT 1002-4G versions 2.03.17 and earlier, replace the generic certificate with a device-specific certificate during installation. For PHOENIX CONTACT TC CLOUD CLIENT 1002-TXTX versions 1.03.17 and earlier, replace the generic certificate with a device-specific certificate during installation.

Exploit

Fix

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

Related Identifiers

CVE-2020-9435

Affected Products

Phoenix Contact Tc Cloud Client 1002-4G

Phoenix Contact Tc Cloud Client 1002-Txtx

Phoenix Contact Tc Router 2002T-3G

Phoenix Contact Tc Router 3002T-4G

References · 7

• 🔥 http://packetstormsecurity.com/files/156729/Phoenix-Contact-TC-Router-TC-Cloud-Client-Command-Injection.html · Exploit
• 🔥 http://seclists.org/fulldisclosure/2020/Mar/15 · Exploit
• https://osv.dev/vulnerability/CVE-2020-9435 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-9435 · Security Note
• https://t.me/cybersecuritytechnologies/791 · Telegram Post
• https://cert.vde.com/en-us/advisories/vde-2020-003 · Note
• https://cert.vde.com/en-us/advisories · Note