Описание
Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, OcspClient does not validate that the CertificateID in an OCSP response matches the requested CertificateID, which can lead to replay attack. OcspClient.validateResponse accepts a legitimately signed GOOD status response for an unrelated certificate issued by the same CA, allowing bypass of revocation checks for another certificate. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
A flaw was found in Netty. The OcspClient component fails to validate that the Certificate ID in an Online Certificate Status Protocol (OCSP) response matches the requested Certificate ID. This vulnerability allows a remote attacker to bypass certificate revocation checks by presenting a legitimately signed OCSP response for an unrelated certificate issued by the same Certificate Authority, leading to a replay attack. This can result in the acceptance of revoked certificates, potentially compromising the integrity and confidentiality of communications.
Отчет
This is an Important flaw in Netty's OcspClient that could allow a remote attacker to bypass certificate revocation checks. By replaying a valid OCSP response for an unrelated certificate from the same Certificate Authority, an attacker could trick a client into accepting a revoked certificate, thereby compromising the integrity and confidentiality of communications. Exploitation requires high attack complexity, indicating specific conditions or attacker preparation.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Data Grid 8 | netty-handler-ssl-ocsp | Affected | ||
| Red Hat JBoss Enterprise Application Platform Expansion Pack | netty-handler-ssl-ocsp | Not affected | ||
| Red Hat build of Apache Camel 4.18.3 for Spring Boot 3.5.16 | netty-handler-ssl-ocsp | Fixed | RHSA-2026:54622 | 13.08.2026 |
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Дополнительная информация
Статус:
7.4 High
CVSS3
Связанные уязвимости
Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, `OcspClient` does not validate that the `CertificateID` in an OCSP response matches the requested `CertificateID`, which can lead to replay attack. `OcspClient.validateResponse` accepts a legitimately signed `GOOD` status response for an unrelated certificate issued by the same CA, allowing bypass of revocation checks for another certificate. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, `OcspClient` does not validate that the `CertificateID` in an OCSP response matches the requested `CertificateID`, which can lead to replay attack. `OcspClient.validateResponse` accepts a legitimately signed `GOOD` status response for an unrelated certificate issued by the same CA, allowing bypass of revocation checks for another certificate. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
Netty is a network application framework for development of protocol s ...
Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks
7.4 High
CVSS3