CVE-2017-18026 Information

Description

Redmine before 3.2.9 3.3.x before 3.3.6 and 3.4.x before 3.4.4 does not block the –config and –debugger flags to the Mercurial hg program which allows remote attackers to execute arbitrary commands (through the Mercurial adapter) via vectors involving a branch whose name begins with a –config= or –debugger= substring a related issue to CVE-2017-17536.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://github.com/redmine/redmine/commit/58ed8655136ff2fe5ff7796859bf6a399c76c678 https://github.com/redmine/redmine/commit/9d797400eaec5f9fa7ba9507c82d9c18cb91d02e https://github.com/redmine/redmine/commit/ca87bf766cdc70179cb2dce03015d78ec9c13ebd https://www.debian.org/security/2018/dsa-4191 https://www.redmine.org/issues/27516 https://www.redmine.org/projects/redmine/wiki/Security_Advisories

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8