Backdoor accounts in WAGO Industrial Managed Switches

Published: 2019-06-13 22:34:53 | Updated: 2019-06-14
Severity Medium
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2019-12550
CVE-2019-12549
CVSSv3 7.7 [CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
7.7 [CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CWE ID CWE-798
Exploitation vector Local network
Public exploit N/A
Vulnerable software WAGO Industrial Managed Switch 852-1505
WAGO Industrial Managed Switch 852-1305
WAGO Industrial Managed Switch 852-303
Vulnerable software versions WAGO Industrial Managed Switch 852-1505 -
WAGO Industrial Managed Switch 852-1305 -
WAGO Industrial Managed Switch 852-303 -
Vendor URL WAGO

Security Advisory

1) Use of hard-coded credentials

Description

The vulnerability allows a remote attacker to gain full access to vulnerable system.

The vulnerability exists due to presence of hard-coded credentials in application code. A remote unauthenticated attacker can access the affected device using the hard-coded credentials.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install updates from vendor's website.

External links

https://ics-cert.us-cert.gov/advisories/ICSA-19-164-02

2) Use of hard-coded credentials

Description

The vulnerability allows a remote attacker to gain full access to vulnerable system.

The vulnerability exists due to presence of hard-coded SSH key that cannot be regenerated. A remote unauthenticated attacker with access to the key can compromise the affected device.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install updates from vendor's website.

External links

https://ics-cert.us-cert.gov/advisories/ICSA-19-164-02

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