Privilege escalation in Schneider Electric Software Update



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
 Software Update
Client/Desktop applications / Other client software

Vendor Schneider Electric

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

Description

The 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.

Mitigation

Update to version 2.2.0.

Vulnerable software versions

Software Update: All versions

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/ICSA-18-305-02


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.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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