PT-2021-21719 · Apache · Apache Dubbo

Alvaro Munoz · Published 2021-09-09 · Updated 2021-09-19 · CVE-2021-37579

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Apache Dubbo versions prior to 2.7.13 Apache Dubbo versions prior to 3.0.2

Description The issue concerns a pre-authentication unsafe Java deserialization in Apache Dubbo. This allows an attacker to bypass security checks and perform a deserialization operation using native Java serialization. There is no information provided about the estimated number of potentially affected devices worldwide or details about real-world incidents where this issue was exploited.

Recommendations For Apache Dubbo versions prior to 2.7.13, update to version 2.7.13 or later to resolve the issue. For Apache Dubbo versions prior to 3.0.2, update to version 3.0.2 or later to resolve the issue. As a temporary workaround, consider disabling the native Java serialization to minimize the risk of exploitation.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2021-37579

GHSA-Q897-9JXF-JG9R

Affected Products

Apache Dubbo

References · 7

• https://osv.dev/vulnerability/GHSA-q897-9jxf-jg9r · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-37579 · Vendor Advisory
• https://lists.apache.org/thread.html/r898afa109cdbb4b79724308648ff0718152ebe1d3d6dfc7202d958bc%40%3Cdev.dubbo.apache.org%3E · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37579 · Security Note
• https://github.com/apache/dubbo · Note
• https://t.me/pentestingnews/11077 · Telegram Post
• https://t.me/cybersecuritytechnologies/4326 · Telegram Post