GHSA-h6rp-mprm-xgcq

plone.rest vulnerable to Denial of Service when ++api++ is used many times

Source: GitHub Advisory Database (reviewed) Moderate CVE-2023-42457

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	plone.rest	>= 2.0.0a1, < 2.0.1	2.0.1
PyPI	plone.rest	>= 3.0.0, < 3.0.1	3.0.1

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact When the `++api++` traverser is accidentally used multiple times in a url, handling it takes increasingly longer, making the server less responsive. ### Patches Patches will be released in `plone.rest` 2.0.1 and 3.0.1. Series 1.x is not affected. ### Workarounds In your frontend web server (nginx, Apache) you can redirect `/++api++/++api++` to `/++api++`.

References

External links from the advisory. They lead to third-party sites.

https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcq web
https://nvd.nist.gov/vuln/detail/CVE-2023-42457 advisory
https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7 web
https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302 web
https://github.com/plone/plone.rest package
https://github.com/pypa/advisory-database/tree/main/vulns/plone-rest/PYSEC-2023-178.yaml web
http://www.openwall.com/lists/oss-security/2023/09/22/2 web