Open Redirect in Schneider-Electric Software Update Utility
CVE-2020-7520
A CWE-601: URL Redirection to Untrusted Site ('Open Redirect') vulnerability exists in Schneider Electric Software Update (SESU), V2.4.0 and prior, which could cause execution of malicious code on the victim's machine. In order to exploit this vulnerability, an attacker requires privileged access on the engineering workstation to modify a Windows registry key which would divert all traffic updates to go through a server in the attacker's possession. A man-in-the-middle attack is then used to complete the exploit.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (59.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Schneider-Electric Software Update Utility
- Schneider Electric Software Update (Sesu) V2.4.0 And Prior. — versions Schneider Electric Software Update (SESU) V2.4.0 and prior.
Weakness classification (CWE)
References
- www.se.com/ww/en/download/document/SEVD-2020-196-01/ (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-7520?
- CVE-2020-7520 is a medium-severity vulnerability in Schneider-Electric Software Update Utility, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2020-07-23.
- How severe is CVE-2020-7520?
- Medium severity. CVSS v3 base score is 4.7 out of 10.