Vulnerability · Published Nov 15, 2023 · Assigned by vmware

CVE-2023-34062

High 7.5

In plain English

A high-severity security flaw in Reactor Netty. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.1%top 33.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, a malicious user can send a request using a specially crafted URL that can lead to a directory traversal attack. Specifically, an application is vulnerable if Reactor Netty HTTP Server is configured to serve static resources.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenio.projectreactor.netty:reactor-netty-http1.1.13GHSA-xjhv-p3fv-x24r
Mavenio.projectreactor.netty:reactor-netty-http1.0.39GHSA-xjhv-p3fv-x24r

Affected products (as reported)

VendorProductVersions
n/a Reactor Netty 1.1.0 – before 1.1.131.0.0 – before 1.0.39older unsupported versions

References