A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in stapler/core/src/main/java/org/kohsuke/stapler/MetaClass.java that allows attackers to invoke some methods on Java objects by accessing crafted URLs that were not intended to be invoked this way.
Published 2018-12-10 14:29:01
Updated 2022-06-13 19:00:58
Source MITRE
View at NVD,   CVE.org

Threat overview for CVE-2018-1000861

Top countries where our scanners detected CVE-2018-1000861
Top open port discovered on systems with this issue 80
IPs affected by CVE-2018-1000861 4,454
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2018-1000861!
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CVE-2018-1000861 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Jenkins Stapler Web Framework Deserialization of Untrusted Data Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
A code execution vulnerability exists in the Stapler web framework used by Jenkins
Added on 2022-02-10 Action due date 2022-08-10

Exploit prediction scoring system (EPSS) score for CVE-2018-1000861

97.32%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2018-1000861

  • Jenkins ACL Bypass and Metaprogramming RCE
    Disclosure Date: 2019-01-08
    First seen: 2020-04-26
    exploit/multi/http/jenkins_metaprogramming
    This module exploits a vulnerability in Jenkins dynamic routing to bypass the Overall/Read ACL and leverage Groovy metaprogramming to download and execute a malicious JAR file. When the "Java Dropper" target is selected, the original entry point based on cla

CVSS scores for CVE-2018-1000861

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
10.0
HIGH AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2018-1000861

References for CVE-2018-1000861

Products affected by CVE-2018-1000861

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