#VU56449 Code Injection in Apache Dubbo - CVE-2021-36161

Vulnerability identifier: #VU56449

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-36161

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Dubbo
Web applications / Other software

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to some component in Dubbo tries to print the formated string of the input arguments. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Dubbo: 2.7.0 - 2.7.12

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External links
https://lists.apache.org/thread.html/r40212261fd5d638074b65f22ac73eebe93ace310c79d4cfcca4863da%40%3Cdev.dubbo.apache.org%3E

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.