CVE Vulnerability

CVE-2021-36162

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

6.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://lists.apache.org/thread.html/rfa351115a459e214b99ffcc52c35f33359f3370c547d9c6ba1a60037%40%3Cdev.dubbo.apache.org%3E Mailing List Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*
Information

Published : 2021-09-07 10:15

Updated : 2021-09-14 03:19

NVD link : CVE-2021-36162

Mitre link : CVE-2021-36162

Products Affected
No products.
CWE
NVD-CWE-noinfo