CVE-2017-2650

It was found that the use of Pipeline: Classpath Step Jenkins plugin enables a bypass of the Script Security sandbox for users with SCM commit access, as well as users with e.g. Job/Configure permission in Jenkins.

Published: 2018-07-27 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-2650 is rated Moderate Risk (43.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.12%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-2650

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.38% 0.12% -0.26%
2 2025-03-29 0.10% 0.38% +0.28%
3 2023-03-07 — 0.10% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-2650

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.5 3.0 HIGH
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H 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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 6.0 [email protected]
6.0 2.0 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 6.4 [email protected]

Weakness enumeration for CVE-2017-2650

GitHub Security Advisory for CVE-2017-2650

GHSA-r5c7-qcc9-5v7m · Severity: high · Ecosystem: maven — Jenkins Pipeline Classpath Step plugin allowed Script Security sandbox bypass

Affected software / configurations for CVE-2017-2650

Vendor Product Version Raw CPE
jenkins pipeline_classpath_step 0.1.0 cpe:2.3:a:jenkins:pipeline_classpath_step:0.1.0:*:*:*:*:jenkins:*:*

References for CVE-2017-2650

URL Tags
http://www.securityfocus.com/bid/96981 Third Party Advisory VDB Entry
https://jenkins.io/security/advisory/2017-03-20/ Vendor Advisory
cvelogic Threat Intelligence