CVE-2024-28866 GoCD vulnerable to reflected Cross-site Scripting possible on server loading page during start-up
Attackers can execute scripts in user browsers via a reflected XSS flaw in GoCD's startup loading page, potentially stealing session tokens during server restarts.
- 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-2024-28866?
CVE-2024-28866 is a low-severity cross-site scripting vulnerability in gocd, published on 13 May 2024. 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
GoCD is a continuous delivery server. GoCD versions from 19.4.0 to 23.5.0 (inclusive) are potentially vulnerable to a reflected cross-site scripting vulnerability on the loading page displayed while GoCD is starting, via abuse of a `redirect_to` query parameter with inadequate validation.
Attackers could theoretically abuse the query parameter to steal session tokens or other values from the user's browser. In practice exploiting this to perform privileged actions is likely rather difficult to exploit because the target user would need to be triggered to open an attacker-crafted link in the period where the server is starting up (but not completely started), requiring chaining with a separate denial-of-service vulnerability. Additionally, GoCD server restarts invalidate earlier session tokens (i.e GoCD does not support persistent sessions), so a stolen session token would be unusable once the server has completed restart, and executed XSS would be done within a logged-out context.
The issue is fixed in GoCD 24.1.0. As a workaround, it is technically possible in earlier GoCD versions to override the loading page with an earlier version which is not vulnerable, by starting GoCD with the Java system property override as either `-Dloading.page.resource.path=/loading_pages/default.loading.page.html` (simpler early version of loading page without GoCD introduction) or `-Dloading.page.resource.path=/does_not_exist.html` (to display a simple message with no interactivity).
Weakness: CWE-79
Which versions are affected by CVE-2024-28866?
It affects 1 product.
Products include Thoughtworks Gocd.
How do I fix CVE-2024-28866?
No fix has been published for CVE-2024-28866 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-2024-28866 being exploited?
There is no known exploitation of CVE-2024-28866 in the wild and no public exploit code.
Other vulnerabilities in gocd
- CVE-2021-43290 Path traversal in n/a
- CVE-2021-44659 Server-side request forgery in n/a
- CVE-2024-56320 GoCD vulnerable to admin privilege escalation by a malicious internal/existing authenticated user
- CVE-2022-39311 Compromised agents may be able to execute remote code on GoCD Server
- CVE-2022-29184 Command Injection/Argument Injection in GoCD
Sources
Also known as GHSA-q882-q6mm-mgvh.