CVE-2011-4720 Denial of service in n/a
Remote attackers can crash the Hillstone TFTP Server daemon by sending a long filename in RRQ or WRQ operations.
- 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-2011-4720?
CVE-2011-4720 is a medium-severity denial of service vulnerability in n/a, published on 28 Dec 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Hillstone HS TFTP Server 1.3.2 allows remote attackers to cause a denial of service (daemon crash) via a long filename in a (1) RRQ or (2) WRQ operation.
Weakness: CWE-20
Which versions are affected by CVE-2011-4720?
It affects 1 product.
Products include Hillstone Software Hs Tftp Server.
How do I fix CVE-2011-4720?
No fix has been published for CVE-2011-4720 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-2011-4720 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4720 exists.
Public exploit code: 1 Exploit-DB entry.
Sources
Also known as GHSA-mxgw-3vjq-gxmm.