Multiple vulnerabilities in LS ELECTRIC XBC-DN32U PLC performance module



Risk High
Patch available NO
Number of vulnerabilities 7
CVE-ID CVE-2023-22803
CVE-2023-22804
CVE-2023-22805
CVE-2023-22806
CVE-2023-22807
CVE-2023-0102
CVE-2023-0103
CWE-ID CWE-306
CWE-284
CWE-319
CWE-940
CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 XBC-DN32U
Hardware solutions / Firmware

Vendor LS Electric

Security Bulletin

This security bulletin contains information about 7 vulnerabilities.

1) Missing Authentication for Critical Function

EUVDB-ID: #VU72113

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-22803

CWE-ID: CWE-306 - Missing Authentication for Critical Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to manipulate PLC configuration.

The vulnerability exists due to missing authorization. A remote attacker can send a specially crafted request and set PLC to an mode mode.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

XBC-DN32U: 01.80

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-23-040-02


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.

2) Missing Authentication for Critical Function

EUVDB-ID: #VU72114

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-22804

CWE-ID: CWE-306 - Missing Authentication for Critical Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected device.

The vulnerability exists due to missing authorization. A remote non-authenticated attacker can send a specially crafted request to the device, create an administrative account and take full control over the device.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

XBC-DN32U: 01.80

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-23-040-02


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.

3) Improper access control

EUVDB-ID: #VU72115

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-22805

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to deny access to users.

The vulnerability exists due to improper access restrictions. A remote attacker can disable read access to device users.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

XBC-DN32U: 01.80

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-23-040-02


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) Cleartext transmission of sensitive information

EUVDB-ID: #VU72116

Risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-22806

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 (own unencrypted XGT protocol) to transmit sensitive information. A remote attacker with ability to intercept network traffic can gain access to sensitive data.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

XBC-DN32U: 01.80

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-23-040-02


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.

5) Improper Verification of Source of a Communication Channel

EUVDB-ID: #VU72117

Risk: High

CVSSv4.0: 6.2 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-22807

CWE-ID: CWE-940 - Improper Verification of Source of a Communication Channel

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to usage of XGT protocol for communication purposes with PLC. A remote attacker can perform MitM attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

XBC-DN32U: 01.80

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-23-040-02


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.

6) Improper access control

EUVDB-ID: #VU72118

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0102

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to delete arbitrary files on the device.

The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted request and delete arbitrary files on the device.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

XBC-DN32U: 01.80

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-23-040-02


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.

7) Out-of-bounds read

EUVDB-ID: #VU72119

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0103

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition. A remote attacker can send specially crafted data to the device, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

XBC-DN32U: 01.80

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-23-040-02


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.



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