Описание
Files or Directories Accessible to External Parties, Improper Privilege Management vulnerability in Apache Kafka Clients.
Apache Kafka Clients accept configuration data for customizing behavior, and includes ConfigProvider plugins in order to manipulate these configurations. Apache Kafka also provides FileConfigProvider, DirectoryConfigProvider, and EnvVarConfigProvider implementations which include the ability to read from disk or environment variables.
In applications where Apache Kafka Clients configurations can be specified by an untrusted party, attackers may use these ConfigProviders to read arbitrary contents of the disk and environment variables.
In particular, this flaw may be used in Apache Kafka Connect to escalate from REST API access to filesystem/environment access, which may be undesirable in certain environments, including SaaS products.
This issue affects Apache Kafka Clients: from 2.3.0 through 3.5.2, 3.6.2, 3.7.0.
Users with affected applications are recommended to upgrade kafka-clients to version >=3.8.0, and set the JVM system property "org.apache.kafka.automatic.config.providers=none".
Users of Kafka Connect with one of the listed ConfigProvider implementations specified in their worker config are also recommended to add appropriate "allowlist.pattern" and "allowed.paths" to restrict their operation to appropriate bounds.
For users of Kafka Clients or Kafka Connect in environments that trust users with disk and environment variable access, it is not recommended to set the system property.
For users of the Kafka Broker, Kafka MirrorMaker 2.0, Kafka Streams, and Kafka command-line tools, it is not recommended to set the system property.
A flaw was found in Apache Kafka Clients. Apache Kafka Clients accepts configuration data for customizing behavior and includes ConfigProvider plugins to manipulate these configurations. Apache Kafka also provides FileConfigProvider, DirectoryConfigProvider, and EnvVarConfigProvider implementations, which include the ability to read from disk or environment variables. In applications where an untrusted party can specify Apache Kafka Clients configurations, attackers may use these ConfigProviders to read arbitrary contents of the disk and environment variables.
Отчет
Moderate impact affects Red Hat products and services that include Apache Kafka Clients when an attacker with low privileges can cause an application to process attacker-controlled client configuration. Over the network, and with high attack complexity, the attacker may abuse the automatic FileConfigProvider, DirectoryConfigProvider, or EnvVarConfigProvider to read arbitrary filesystem contents or environment variables; in Kafka Connect this can escalate REST API access to filesystem or environment access. The current record marks 24 Red Hat product or service streams as affected, with remediation delegated or deferred for some streams, while Red Hat AMQ amq-cl-2 and OpenShift Logging 5.8 and 5.9 are not affected because the vulnerable code is not present. Red Hat rates the issue CVSS 5.3 Moderate, lower than the external 6.5 Moderate score, because Red Hat assesses the attack complexity as high rather than low.
Меры по смягчению последствий
For applications in which an untrusted party can specify Apache Kafka Client configuration, disable automatic configuration providers by setting the JVM system property org.apache.kafka.automatic.config.providers=none. For Kafka Connect workers that must use the listed providers, restrict them with appropriate allowlist.pattern and allowed.paths settings. Upgrade kafka-clients to version 3.8.0 or later, or apply the applicable vendor fix. The system-property restriction is not recommended for Kafka Clients or Kafka Connect deployments where users are trusted with disk and environment access, or for Kafka Broker, Kafka MirrorMaker 2.0, Kafka Streams, and Kafka command-line tools.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| A-MQ Clients 2 | kafka-clients | Not affected | ||
| Logging Subsystem for Red Hat OpenShift | org.apache.kafka/kafka-clients | Not affected | ||
| Red Hat build of Apache Camel 4 for Quarkus 3 | kafka-clients | Affected | ||
| Red Hat build of Apicurio Registry 2 | kafka-clients | Affected | ||
| Red Hat build of Debezium 2 | kafka-clients | Will not fix | ||
| Red Hat build of Quarkus | kafka-clients | Not affected | ||
| Red Hat Data Grid 8 | kafka-clients | Will not fix | ||
| Red Hat Fuse 7 | kafka-clients | Out of support scope | ||
| Red Hat Integration Camel K 1 | kafka-clients | Out of support scope | ||
| Red Hat JBoss Data Grid 7 | kafka-clients | Out of support scope |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
Files or Directories Accessible to External Parties, Improper Privilege Management vulnerability in Apache Kafka Clients. Apache Kafka Clients accept configuration data for customizing behavior, and includes ConfigProvider plugins in order to manipulate these configurations. Apache Kafka also provides FileConfigProvider, DirectoryConfigProvider, and EnvVarConfigProvider implementations which include the ability to read from disk or environment variables. In applications where Apache Kafka Clients configurations can be specified by an untrusted party, attackers may use these ConfigProviders to read arbitrary contents of the disk and environment variables. In particular, this flaw may be used in Apache Kafka Connect to escalate from REST API access to filesystem/environment access, which may be undesirable in certain environments, including SaaS products. This issue affects Apache Kafka Clients: from 2.3.0 through 3.5.2, 3.6.2, 3.7.0. Users with affected applications are recommended
Apache Kafka Clients: Privilege escalation to filesystem read-access via automatic ConfigProvider
Уязвимость компонента Automatic ConfigProvider диспетчера сообщений Apache Kafka, позволяющая нарушителю раскрыть защищаемую информацию
ALT-PU-2024-18025: package `kafka` update to version 3.8.0-alt1
EPSS
5.3 Medium
CVSS3