Vulnerability Details : CVE-2023-42457
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).
Products affected by CVE-2023-42457
- cpe:2.3:a:plone:rest:2.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:plone:rest:3.0.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-42457
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 43 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-42457
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2023-42457
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: security-advisories@github.com (Secondary)
-
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2023-42457
-
http://www.openwall.com/lists/oss-security/2023/09/22/2
oss-security - Plone security advisory 2023/09/21Mailing List;Third Party Advisory
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https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302
Merge pull request from GHSA-h6rp-mprm-xgcq · plone/plone.rest@77846a9 · GitHubPatch
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https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7
Merge pull request from GHSA-h6rp-mprm-xgcq · plone/plone.rest@43b4a7e · GitHubPatch
-
https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcq
Denial of Service when ++api++ is used many times · Advisory · plone/plone.rest · GitHubVendor Advisory
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