Multiple vulnerabilities in Phoenix Contact CHARX SEC controllers



Risk Medium
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2024-28137
CVE-2024-28133
CVE-2024-28134
CVE-2024-28135
CVE-2024-28136
CWE-ID CWE-367
CWE-426
CWE-319
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 CHARX SEC-3000
Hardware solutions / Firmware

CHARX SEC-3050
Hardware solutions / Firmware

CHARX SEC-3100
Hardware solutions / Firmware

CHARX SEC-3150
Hardware solutions / Firmware

Vendor Phoenix Contact GmbH

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU89907

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-28137

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to a time-of-check, time-of-use (TOCTOU) race condition within the /etc/init.d/user-applications script. A local user can create a symbolic link to change ownership of arbitrary files and gain elevated privilege on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CHARX SEC-3000: 1.5.1

CHARX SEC-3050: 1.5.1

CHARX SEC-3100: 1.5.1

CHARX SEC-3150: 1.5.1

CPE2.3 External links

https://cert.vde.com/en/advisories/VDE-2024-019
https://www.zerodayinitiative.com/advisories/ZDI-24-523/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Untrusted search path

EUVDB-ID: #VU89911

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-28133

CWE-ID: CWE-426 - Untrusted Search Path

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to usage of an untrusted search path within the charx_set_timezone binary in the CHARX system utility. A local user can place a malicious binary into a specific location on the system and execute arbitrary code with escalated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CHARX SEC-3000: 1.5.1

CHARX SEC-3050: 1.5.1

CHARX SEC-3100: 1.5.1

CHARX SEC-3150: 1.5.1

CPE2.3 External links

https://cert.vde.com/en/advisories/VDE-2024-019
https://www.zerodayinitiative.com/advisories/ZDI-24-519/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

3) Cleartext transmission of sensitive information

EUVDB-ID: #VU89910

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-28134

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

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

The vulnerability exists due to software uses insecure communication channel to transmit sensitive information within the configuration of nginx. A remote attacker with ability to intercept network traffic can gain access to sensitive data and gain web-based management access with the privileges of the currently logged in user.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CHARX SEC-3000: 1.5.1

CHARX SEC-3050: 1.5.1

CHARX SEC-3100: 1.5.1

CHARX SEC-3150: 1.5.1

CPE2.3 External links

https://cert.vde.com/en/advisories/VDE-2024-019
https://www.zerodayinitiative.com/advisories/ZDI-24-520/


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.

4) Input validation error

EUVDB-ID: #VU89909

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-28135

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary commands on the system.

The vulnerability exists due to insufficient validation of user-supplied input within the handling of the filename parameter to the update2-install endpoint. A remote administrator on the local network can pass specially crafted data to the application and execute arbitrary commands on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CHARX SEC-3000: 1.5.1

CHARX SEC-3050: 1.5.1

CHARX SEC-3100: 1.5.1

CHARX SEC-3150: 1.5.1

CPE2.3 External links

https://cert.vde.com/en/advisories/VDE-2024-019
https://www.zerodayinitiative.com/advisories/ZDI-24-522/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

5) Input validation error

EUVDB-ID: #VU89908

Risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-28136

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the system.

The vulnerability exists due to insufficient validation of user-supplied input in the charx_pack_logs function within the handling of the Charger ID parameter to the Get Diagnostics command. A remote attacker on the local network can pass specially crafted data to the application and execute arbitrary commands on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CHARX SEC-3000: 1.5.1

CHARX SEC-3050: 1.5.1

CHARX SEC-3100: 1.5.1

CHARX SEC-3150: 1.5.1

CPE2.3 External links

https://cert.vde.com/en/advisories/VDE-2024-019
https://www.zerodayinitiative.com/advisories/ZDI-24-522/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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