Unsafe methods in the default list of approved signatures in Jenkins Script Security Plugin

CVE-2017-1000095 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

The default whitelist included the following unsafe entries: DefaultGroovyMethods.putAt(Object, String, Object); DefaultGroovyMethods.getAt(Object, String). These allowed circumventing many of the access restrictions implemented in the script sandbox by using e.g. currentBuild['rawBuild'] rather than currentBuild.rawBuild. Additionally, the following entries allowed accessing private data that would not be accessible otherwise due to script security: groovy.json.JsonOutput.toJson(Closure); groovy.json.JsonOutput.toJson(Object).

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Not specified
Published (advisory)
2022-05-13 01:40:54 UTC
Updated
2024-01-30 22:46:08 UTC
GitHub reviewed
2024-01-30 22:46:07 UTC
NVD published
2017-10-04

EPSS Score

Score Percentile
0.07% 20.47%

CVSS Scores

Base score Version Severity Vector
6.5 3.0 —
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

Type Value
GHSA GHSA-m68x-cc2f-gr5h ↗
CVE CVE-2017-1000095 ↗

CWEs

CWE id Name
CWE-732 Incorrect Permission Assignment for Critical Resource

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven org.jenkins-ci.plugins:script-security <= 1.29 1.29.1 —

References

cvelogic Threat Intelligence