CVE-2023-42457
plone.rest allows users to use HTTP verbs such as GET, POST, PUT, DELETE, etc. in Plone.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.81%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.81% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-770
- Affected
- plone/rest
- Source
- security-advisories@github.com
References
- http://www.openwall.com/lists/oss-security/2023/09/22/2Mailing List, Third Party Advisory
- https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7Patch
- https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302Patch
- https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcqVendor Advisory
- http://www.openwall.com/lists/oss-security/2023/09/22/2Mailing List, Third Party Advisory
- https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7Patch
- https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302Patch
- https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcqVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.