CVE-2023-6710 Mod_cluster/mod_proxy_cluster: stored cross site scripting
Attackers can inject scripts via the alias parameter in mod_proxy_cluster, leading to stored XSS on the cluster-manager page.
- 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
- Available
What is CVE-2023-6710?
CVE-2023-6710 is a medium-severity cross-site scripting vulnerability in Redhat Enterprise Linux, published on 12 Dec 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A flaw was found in the mod_proxy_cluster in the Apache server. This issue may allow a malicious user to add a script in the 'alias' parameter in the URL to trigger the stored cross-site scripting (XSS) vulnerability. By adding a script on the alias parameter on the URL, it adds a new virtual host and adds the script to the cluster-manager page.
Weakness: CWE-79
Which versions are affected by CVE-2023-6710?
It affects 2 products.
Products include Modcluster Mod Proxy Cluster, Redhat Enterprise Linux.
How do I fix CVE-2023-6710?
Apply the vendor's patch.
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-2023-6710 being exploited?
There is no known exploitation of CVE-2023-6710 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry and 2 proofs of concept on GitHub.
Sources
Also known as GHSA-5xpv-wgx6-ggmv.