Git Lets Remote Authenticated Users Escape the 'git-shell' and Gain Elevated Privileges
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SecurityTracker Alert ID: 1038479 |
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SecurityTracker URL: http://securitytracker.com/id/1038479
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CVE Reference:
CVE-2017-8386
(Links to External Site)
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Date: May 15 2017
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Impact:
User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Description:
A vulnerability was reported in Git. A remote authenticated user can gain elevated privileges.
A remote authenticated user can supply a specially crafted repository name to break out of the restricted git-shell and gain elevated privileges on the target system.
A repository name that starts with a dash can trigger this flaw.
Servers configured to use git-shell as a login shell are affected.
The original advisory is available at:
https://insinuator.net/2017/05/git-shell-bypass-by-abusing-less-cve-2017-8386/
Timo Schmid reported this vulnerability.
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Impact:
A remote authenticated user can gain elevated privileges on the target system.
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Solution:
The vendor has issued a fix (2.4.12, 2.5.6, 2.6.7, 2.7.5, 2.8.5, 2.9.4, 2.10.3, 2.11.2, 2.12.3).
The source code fix is available at:
https://kernel.googlesource.com/pub/scm/git/git/+/3ec804490a265f4c418a321428c12f3f18b7eff5
The vendor advisory is available at:
http://public-inbox.org/git/xmqq8tm5ziat.fsf@gitster.mtv.corp.google.com/
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Vendor URL: public-inbox.org/git/xmqq8tm5ziat.fsf@gitster.mtv.corp.google.com/ (Links to External Site)
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Cause:
Input validation error
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Underlying OS: Linux (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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[Original Message Not Available for Viewing]
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