What is the CVSS score of CVE-2023-42457?

CVE-2023-42457 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.8%.

Is there a patch available for CVE-2023-42457?

Yes, a patch is available for CVE-2023-42457. Update the affected software to the latest version immediately.

Rest CVE-2023-42457

HIGH

Uncontrolled Resource Consumption (CWE-400)

2023-09-21 security-advisories@github.com

Apache Denial Of Service Nginx Rest

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Sep 21, 2023 - 15:15 nvd

HIGH 7.5

DescriptionNVD

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).

AnalysisAI

plone.rest allows users to use HTTP verbs such as GET, POST, PUT, DELETE, etc. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Uncontrolled Resource Consumption vulnerability could allow attackers to cause denial of service by exhausting system resources.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. 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). Affected products include: Plone Rest.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.