Multiple vulnerabilities in Schneider Electric IGSS SCADA
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-7479 CVE-2020-7478 |
| CWE-ID | CWE-306 CWE-22 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
IGSS SCADA Server applications / SCADA systems |
| Vendor | Schneider Electric |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
Updated: 05.04.2020
Updated description for vulnerability #1.
1) Missing Authentication for Critical Function
EUVDB-ID: #VU26351
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-7479
CWE-ID:
CWE-306 - Missing Authentication for Critical Function
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to missing authentication for critical function within the IGSSupdateservice service, which listens on TCP port 12414 by default. A local user can send remote commands to IGSS Update Service without having proper privileges and execute processes.
Install updates from vendor's website.
Vulnerable software versionsIGSS SCADA: 2 - 14.0.0.19120
External linkshttp://www.se.com/ww/en/download/document/SEVD-2020-070-01/
http://ics-cert.us-cert.gov/advisories/icsa-20-084-02
http://www.zerodayinitiative.com/advisories/ZDI-20-370/
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.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Path traversal
EUVDB-ID: #VU26352
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-7478
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted request and read arbitrary files on the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsIGSS SCADA: 2 - 14.0.0.19120
External linkshttp://www.se.com/ww/en/download/document/SEVD-2020-070-01/
http://ics-cert.us-cert.gov/advisories/icsa-20-084-02
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
