CVE-2016-10256 Cross-site scripting in ProxySG
Remote attackers can inject arbitrary JavaScript into the Symantec ProxySG management console via crafted URLs, potentially compromising administrator sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2016-10256?
CVE-2016-10256 is a medium-severity cross-site scripting vulnerability in Symantec Corporation ProxySG, published on 10 Jan 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Symantec ProxySG 6.5 (prior to 6.5.10.6), 6.6, and 6.7 (prior to 6.7.2.1) management console is susceptible to a reflected XSS vulnerability. A remote attacker can use a crafted management console URL in a phishing attack to inject arbitrary JavaScript code into the management console web client application. This is a separate vulnerability from CVE-2016-10257.
Weakness: CWE-79
Which versions are affected by CVE-2016-10256?
It affects 1 product.
Products include Broadcom Symantec Proxysg.
How do I fix CVE-2016-10256?
No fix has been published for CVE-2016-10256 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-2016-10256 being exploited?
There is no known exploitation of CVE-2016-10256 in the wild and no public exploit code.
Sources
Also known as GHSA-jvp2-whwq-j6fc.