Privilege escalation in AVEVA Vijeo Citect and Citect SCADA
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-7799 |
| CWE-ID | CWE-427 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Citect SCADA 2016 Server applications / SCADA systems Citect SCADA 2015 Server applications / SCADA systems Citect SCADA Server applications / SCADA systems Vijeo Citect 2015 Server applications / SCADA systems Vijeo Citect Server applications / SCADA systems |
| Vendor | AVEVA Software, LLC. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Insecure DLL loading
EUVDB-ID: #VU15702
Risk: Low
CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-7799
CWE-ID:
CWE-427 - Uncontrolled Search Path Element
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to gain elevated privileges.
The vulnerability exists due to insecure .dll loading mechanism when opening files. A local attacker can place a file along with specially crafted .dll file on a remote SBM or WebDAV share, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current victim.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected products to version 2.2.0.
Vulnerable software versionsCitect SCADA 2016: All versions
Citect SCADA 2015: All versions
Citect SCADA: All versions
Vijeo Citect 2015: All versions
Vijeo Citect: All versions
CPE2.3- cpe:2.3:a:aveva_software:citect_scada_2016:*:*:*:*:*:*:*:*
- cpe:2.3:a:aveva_software:citect_scada_2015:*:*:*:*:*:*:*:*
- cpe:2.3:a:aveva_software:citect_scada:*:*:*:*:*:*:*:*
- cpe:2.3:a:aveva_software:vijeo_citect_2015:*:*:*:*:*:*:*:*
- cpe:2.3:a:aveva_software:vijeo_citect:*:*:*:*:*:*:*:*
https://sw.aveva.com/hubfs/assets-2018/pdf/security-bulletin/SecurityAdvisory_LFSec134.pdf
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.
