CVE-2017-5257 Cross-site scripting in ePMP
An attacker with SNMP community string access can inject XSS payloads into OIDs, executing scripts in the context of logged-in users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-5257?
CVE-2017-5257 is a medium-severity cross-site scripting vulnerability in Cambium Networks ePMP, published on 20 Dec 2017. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In version 3.5 and prior of Cambium Networks ePMP firmware, an attacker who knows (or guesses) the SNMP read/write (RW) community string can insert XSS strings in certain SNMP OIDs which will execute in the context of the currently-logged on user.
Weakness: CWE-79
Which versions are affected by CVE-2017-5257?
It affects 2 products.
Products include Cambiumnetworks Epmp 1000 Firmware, Cambiumnetworks Epmp 2000 Firmware.
How do I fix CVE-2017-5257?
No fix has been published for CVE-2017-5257 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2017-5257 being exploited?
There is no known exploitation of CVE-2017-5257 in the wild and no public exploit code.
Other vulnerabilities in Cambium Networks ePMP
Sources
Also known as GHSA-gj7g-pf6j-mgpq.