Описание
A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9.2. This occurs when Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the logback jar in the classpath.
A flaw was discovered in FasterXML jackson-databind, where it would permit polymorphic deserialization of malicious objects using the ehcache and logback JNDI gadgets when used in conjunction with polymorphic type handling methods such as enableDefaultTyping() or when @JsonTypeInfo is using Id.CLASS or Id.MINIMAL_CLASS or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.
Отчет
OpenDaylight provided as part of Red Hat OpenStack does not utilize logback when used in a supported configuration. Therefore, the prerequisites for this vulnerability are not present and OpenDaylight is not affected. Satellite 6 does not enable polymorphic unmarshmalling, which is a required configuration for the vulnerability to be used. We may update the jackson-databind dependency in a future release.
Меры по смягчению последствий
The following conditions are needed for an exploit, we recommend avoiding all if possible
- Deserialization from sources you do not control
enableDefaultTyping()@JsonTypeInfo usingid.CLASSorid.MINIMAL_CLASS`
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat BPM Suite 6 | jackson-databind | Out of support scope | ||
| Red Hat Decision Manager 7 | jackson-databind | Not affected | ||
| Red Hat Enterprise Linux 8 | pki-deps:10.6/jackson-databind | Not affected | ||
| Red Hat JBoss A-MQ 6 | jackson-databind | Out of support scope | ||
| Red Hat JBoss Data Grid 7 | jackson-databind | Not affected | ||
| Red Hat JBoss Data Virtualization 6 | jackson-databind | Out of support scope | ||
| Red Hat JBoss Enterprise Application Platform 7 | jackson-databind | Not affected | ||
| Red Hat JBoss Fuse 6 | jackson-databind | Out of support scope | ||
| Red Hat Mobile Application Platform 4 | jackson-databind | Out of support scope | ||
| Red Hat OpenShift Application Runtimes | jackson-databind | Not affected |
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Дополнительная информация
Статус:
7.5 High
CVSS3
Связанные уязвимости
A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9.2. This occurs when Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the logback jar in the classpath.
A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9.2. This occurs when Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the logback jar in the classpath.
A Polymorphic Typing issue was discovered in FasterXML jackson-databin ...
Deserialization of untrusted data in FasterXML jackson-databind
Уязвимость функции FasterXML Java-библиотеки для грамматического разбора JSON файлов jackson-databind, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
7.5 High
CVSS3