Remote code execution in Apache Dubbo

1) Deserialization of Untrusted Data

EUVDB-ID: #VU56398

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-36162

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

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

The vulnerability exists due to insecure input validation when processing serialized data. A remote authenticated attacker can use a specially crafted YAML rules 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 - 3.0.1

CPE2.3

• cpe:2.3:a:apache_foundation:dubbo:2.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.5:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.6:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.7:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:dubbo:2.7.8:*:*:*:*:*:*:*

External links

https://lists.apache.org/thread.html/rfa351115a459e214b99ffcc52c35f33359f3370c547d9c6ba1a60037%40%3Cdev.dubbo.apache.org%3E

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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