CVE-2020-7520 Open redirect in Schneider Electric Software Update (SESU) V2.4.0 and prior.
An attacker with privileged access can modify registry keys to redirect update traffic, enabling a man-in-the-middle attack that leads to malicious code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-7520?
CVE-2020-7520 is a medium-severity vulnerability in Schneider Electric Software Update (SESU) V2.4.0 and prior., published on 23 Jul 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-601
Which versions are affected by CVE-2020-7520?
It affects 1 product.
Products include Schneider-Electric Software Update Utility.
How do I fix CVE-2020-7520?
No fix has been published for CVE-2020-7520 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-7520 being exploited?
There is no known exploitation of CVE-2020-7520 in the wild and no public exploit code.
Other vulnerabilities in Schneider Electric Software Update (SESU) V2.4.0 and prior.
Sources
Also known as GHSA-392j-2p2c-c7m3.