Multiple vulnerabilities in Schneider Electric GUIcon



Risk High
Patch available NO
Number of vulnerabilities 3
CVE-ID CVE-2021-22807
CVE-2021-22808
CVE-2021-22809
CWE-ID CWE-787
CWE-416
CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 GUIcon Eurotherm
Hardware solutions / Firmware

Vendor Schneider Electric

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU58245

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-22807

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when a malicious *.gd1 configuration file is loaded into the GUIcon tool. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

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

Vulnerable software versions

GUIcon Eurotherm: 2.0.683.003

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-21-313-02
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-07


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) Use-after-free

EUVDB-ID: #VU58246

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-22808

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when a malicious *.gd1 configuration file is loaded into the GUIcon tool. A remote attacker can execute arbitrary code on the target system.

Mitigation

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

Vulnerable software versions

GUIcon Eurotherm: 2.0.683.003

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-21-313-02
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-07


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) Out-of-bounds read

EUVDB-ID: #VU58247

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22809

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition when a malicious *.gd1 configuration file is loaded into the GUIcon tool. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

GUIcon Eurotherm: 2.0.683.003

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/icsa-21-313-02
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-07


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.



###SIDEBAR###