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 Subscribe |
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
CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-22807
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsGUIcon Eurotherm: 2.0.683.003
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-313-02
http://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
CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-22808
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsGUIcon Eurotherm: 2.0.683.003
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-313-02
http://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
CVSSv3.1: 5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-22809
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsGUIcon Eurotherm: 2.0.683.003
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-313-02
http://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.
