Deserialization in Apache Dubbo

CVE-2020-1948

This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.

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: 0.164 (96.9th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-1948: rose from 0.158 to 0.164.

EPSS over last 30 days · oldest: 0.158 · newest: 0.164 · change: +0.006

Affected products

  • Apache Dubbo
  • Apache Dubbo — versions Apache Dubbo 2.5.x, 2.6.0 to 2.6.8, 2.7.0 to 2.7.7

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-1948?
CVE-2020-1948 is a critical-severity vulnerability in Apache Dubbo, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2020-07-14.
How severe is CVE-2020-1948?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-1948 known to be exploited?
58 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.