Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-57m8-f3v5-hm5m
Advisory ID github_osv/GHSA-57m8-f3v5-hm5m
Aliases CVE-2023-4586
Summary Withdrawn Advisory: Netty-handler does not validate host names by default ## Withdrawn Advisory This advisory has been withdrawn because the underlying vulnerability only concerns Red Hat's Hot Rod client, which is not in one of the GitHub Advisory Database's [supported ecosystems](https://github.com/github/advisory-database/blob/main/README.md#supported-ecosystems). This link is maintained to preserve external references. ## Original Description Netty-handler has been found to no validate hostnames when using TLS in its default configuration. As a result netty-handler is vulnerable to man-in-the-middle attacks. Users would need to set the protocol to "HTTPS" in the SSLParameters of the SSLEngine to opt in to host name validation. A change in default behavior is expected in the `5.x` release branch with no backport planned. In the interim users are advised to enable host name validation in their configurations. See https://github.com/netty/netty/issues/8537 for details on the forthcoming change in default behavior.
Status Published
Exploitability 0.5
Weighted Severity 4.8
Risk 2.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-295 Improper Certificate Validation
System Score Found at
cvssv3.1 5.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/10/GHSA-57m8-f3v5-hm5m/GHSA-57m8-f3v5-hm5m.json
generic_textual MODERATE
Reference id Reference type URL
https://bugzilla.redhat.com/show_bug.cgi?id=2235564
https://docs.oracle.com/javase/8/docs/api/javax/net/ssl/SSLParameters.html#setEndpointIdentificationAlgorithm-java.lang.String-
https://github.com/netty/netty
https://github.com/netty/netty/issues/8537
https://security.snyk.io/vuln/SNYK-JAVA-IONETTY-1042268
CVE-2023-4586 https://access.redhat.com/security/cve/CVE-2023-4586
CVE-2023-4586 https://nvd.nist.gov/vuln/detail/CVE-2023-4586
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/10/GHSA-57m8-f3v5-hm5m/GHSA-57m8-f3v5-hm5m.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.