High severity · published Sep 21, 2023
CVE-2023-42457
plone.rest allows users to use HTTP verbs such as GET, POST, PUT, DELETE, etc
7.5
CVSS
1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RE
Rest · Plone
2.0.0; 3.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-42457
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-42457
Mailing List
http://www.openwall.com/lists/oss-security/2023/09/22/2
Patch
https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7
Patch
https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302
Vendor Advisory
https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcq