Improper Validation of Syntactic Correctness of Input Affecting org.eclipse.jetty:jetty-server package, versions [,12.0.12)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published15 Oct 2024
- disclosed14 Oct 2024
- creditz3r0yu
Introduced: 14 Oct 2024
CVE-2024-6763 (opens in a new tab)How to fix?
Upgrade org.eclipse.jetty:jetty-server to version 12.0.12 or higher.
Overview
org.eclipse.jetty:jetty-server is a lightweight highly scalable java based web server and servlet engine.
Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input via the HttpURI class due to insufficient validation on the authority segment of a URI. An attacker can manipulate the URI parsing to redirect requests or initiate server-side requests to unintended destinations by supplying malformed URIs that bypass validation checks.
Notes:
This is only exploitable if the application uses decoded user data as encoded URIs in conjunction with the
HttpURIclass used directly;The Jetty usage of the
HttpURIclass is not vulnerable.
Workaround
This vulnerability can be mitigated by not passing decoded user data as encoded URIs to any URI class/method, including HttpURI.
PoC
http://browser.check &@vulndetector.com/
http://browser.check #@vulndetector.com/
http://browser.check?@vulndetector.com/
http://browser.check#@vulndetector.com/
http://vulndetector.com\\/