CVE-2011-4503 Missing authorization in n/a
Remote attackers can bypass security controls to establish arbitrary port mappings on Sitecom WL-111 routers via UPnP requests.
- 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-2011-4503?
CVE-2011-4503 is a high-severity missing authorization vulnerability in n/a, published on 22 Nov 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The UPnP IGD implementation in Broadcom Linux on the Sitecom WL-111 allows remote attackers to establish arbitrary port mappings by sending a UPnP AddPortMapping action in a SOAP request to the WAN interface, related to an "external forwarding" vulnerability.
Weakness: CWE-16
Which versions are affected by CVE-2011-4503?
It affects 2 products.
Products include Broadcom Broadcom Linux, Sitecom Wl-111.
How do I fix CVE-2011-4503?
No fix has been published for CVE-2011-4503 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2011-4503 being exploited?
There is no known exploitation of CVE-2011-4503 in the wild and no public exploit code.
Sources
Also known as GHSA-ffcg-78g8-hcrr.