Deserialization in Apache Dubbo
CVE-2021-37579
The Dubbo Provider will check the incoming request and the corresponding serialization type of this request meet the configuration set by the server. But there's an exception that the attacker can use to skip the security check (when enabled) and reaching a deserialization operation with native java serialization. Apache Dubbo 2.7.13, 3.0.2 fixed this issue by quickly fail when any unrecognized request was found.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.066 (93.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.066 · newest: 0.066 · change: 0.000
Affected products
- Apache Dubbo
- Apache Software Foundation Dubbo — versions Apache Dubbo 2.7.x, Apache Dubbo 3.0.x
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r898afa109cdbb4b79724308648ff0718152ebe1d3d6dfc720… (Mailing List, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-37579?
- CVE-2021-37579 is a critical-severity vulnerability in Apache Dubbo, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-09-09.
- How severe is CVE-2021-37579?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-37579 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.