Bug 1380386 (CVE-2016-7787) - CVE-2016-7787 kde-cli-tools: Improper handling of unicode string terminator in kdesu invocation
Summary: CVE-2016-7787 kde-cli-tools: Improper handling of unicode string terminator i...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2016-7787
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1380387 1380388
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-09-29 12:45 UTC by Adam Mariš
Modified: 2019-09-29 13:57 UTC (History)
5 users (show)

Fixed In Version: kf5-kdesu 5.7.95, kf5-kdesu 5.7.5
Clone Of:
Environment:
Last Closed: 2019-06-08 02:59:14 UTC
Embargoed:

Attachments (Terms of Use)

Description Adam Mariš 2016-09-29 12:45:13 UTC 
Improper handling of unicode string terminator in kdesu invocation could lead to unintended code execution.

PoC:

echo Hi@; whoami > /tmp/filebyroot

If @ is the unicode string terminator, it would only tell the user that kdesu executed "echo Hi" but it also creates the /tmp/filebyroot file as root

Upstream patch:

https://github.com/KDE/kde-cli-tools/commit/5eda179a099ba68a20dc21dc0da63e85a565a171

CVE assignment:

http://seclists.org/oss-sec/2016/q3/653
Comment 1 Adam Mariš 2016-09-29 12:45:44 UTC 
Created kf5-kdesu tracking bugs for this issue:

Affects: fedora-all [bug 1380387]
Affects: epel-7 [bug 1380388]
Comment 2 Product Security DevOps Team 2019-06-08 02:59:14 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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