plone.rest vulnerable to Denial of Service when ++api++ is used many times
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.0%
exploitation probability
1.0%top 38% of all CVEs
observed exploitation
nono source reports it
plone.rest allows users to use HTTP verbs such as GET, POST, PUT, DELETE, etc. in Plone. Starting in the 2.x branch and prior to versions 2.0.1 and 3.0.1, when the `++api++` traverser is accidentally used multiple times in a url, handling it takes increasingly longer, making the server less responsive. Patches are available in `plone.rest` 2.0.1 and 3.0.1. Series 1.x is not affected. As a workaround, one may redirect `/++api++/++api++` to `/++api++` in one's frontend web server (nginx, Apache).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
plone · plone.restReferences
https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcqhttp://www.openwall.com/lists/oss-security/2023/09/22/2