CVE-2020-23776 Server-side request forgery in n/a
An attacker can exploit a Server-Side Request Forgery vulnerability in Winmail to force the server to send requests to arbitrary URLs when HTTPS is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-23776?
CVE-2020-23776 is a high-severity server-side request forgery vulnerability in n/a, published on 26 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A SSRF vulnerability exists in Winmail 6.5 in app.php in the key parameter when HTTPS is on. An attacker can use this vulnerability to cause the server to send a request to a specific URL. An attacker can modify the request header 'HOST' value to cause the server to send the request.
Weakness: CWE-918
Which versions are affected by CVE-2020-23776?
It affects 1 product.
Products include Winmail Project Winmail.
How do I fix CVE-2020-23776?
No fix has been published for CVE-2020-23776 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2020-23776 being exploited?
There is no known exploitation of CVE-2020-23776 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-r62f-j7fr-mvvx.