A path traversal vulnerability in Jenkins 2.185 and earlier, LTS 2.176.1 and earlier in core/src/main/java/hudson/model/FileParameterValue.java allowed attackers with Job/Configure permission to define a file parameter with a file name outside the intended directory, resulting in an arbitrary file write on the Jenkins master when scheduling a build.
http://www.openwall.com/lists/oss-security/2019/07/17/2
http://www.securityfocus.com/bid/109299
https://access.redhat.com/errata/RHSA-2019:2503
https://access.redhat.com/errata/RHSA-2019:2548
https://jenkins.io/security/advisory/2019-07-17/#SECURITY-1424
Source: MITRE
Published: 2019-07-17
Updated: 2019-08-15
Type: CWE-22
Base Score: 4
Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N
Impact Score: 2.9
Exploitability Score: 8
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Impact Score: 3.6
Exploitability Score: 2.8
Severity: MEDIUM