CVE-2018-3948 Denial of service in TP-Link
An attacker can cause the TP-Link TL-R600VPN management portal to stop responding by sending a specially crafted URL, resulting in service downtime.
- 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-2018-3948?
CVE-2018-3948 is a high-severity denial of service vulnerability in TP-Link, published on 30 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An exploitable denial-of-service vulnerability exists in the URI-parsing functionality of the TP-Link TL-R600VPN HTTP server. A specially crafted URL can cause the server to stop responding to requests, resulting in downtime for the management portal. An attacker can send either an unauthenticated or authenticated web request to trigger this vulnerability.
Weakness: CWE-20
Which versions are affected by CVE-2018-3948?
It affects 1 product.
Products include Tp-Link Tl-R600vpn Firmware.
How do I fix CVE-2018-3948?
No fix has been published for CVE-2018-3948 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-3948 being exploited?
There is no known exploitation of CVE-2018-3948 in the wild and no public exploit code.
Other vulnerabilities in TP-Link
Sources
Also known as GHSA-pf62-mvrg-fj5c.