CVE-2021-36162

描述

Apache Dubbo supports various rules to support configuration override or traffic routing (called routing in Dubbo). These rules are loaded into the configuration center (eg: Zookeeper, Nacos, ...) and retrieved by the customers when making a request in order to find the right endpoint. When parsing these YAML rules, Dubbo customers will use SnakeYAML library to load the rules which by default will enable calling arbitrary constructors. An attacker with access to the configuration center he will be able to poison the rule so when retrieved by the consumers, it will get RCE on all of them. This was fixed in Dubbo 2.7.13, 3.0.2

如何修補 CVE-2021-36162

要修補 CVE-2021-36162,請將受影響套件升級到下列已修補版本。

• —升級至 2.7.13 或更新版本

CVE-2021-36162 正在被利用嗎?

低 — EPSS 為 2.0%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 2.7.13

CVSS 分數

參考連結(3)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-36162
• PATCHgithub.com/apache/dubbo
• WEBlists.apache.org/thread.html/rfa351115a459e214b99ffcc52c35f33359f3370c547d9c6ba1a60037%40%3Cdev.dubbo.apache.org%3E