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AUSCERT External Security Bulletin Redistribution
ESB-2019.3091
GitLab Critical Security Release: 12.1.6, 12.0.6 and 11.11.8
14 August 2019
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AusCERT Security Bulletin Summary
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Product: GitLab Community Edition
GitLab Enterprise Edition
Publisher: GitLab
Operating System: UNIX variants (UNIX, Linux, OSX)
Virtualisation
Impact/Access: Execute Arbitrary Code/Commands -- Unknown/Unspecified
Increased Privileges -- Unknown/Unspecified
Access Confidential Data -- Unknown/Unspecified
Resolution: Patch/Upgrade
CVE Names: CVE-2019-14944 CVE-2019-14943 CVE-2019-14942
Original Bulletin:
https://about.gitlab.com/2019/08/12/critical-security-release-gitlab-12-dot-1-dot-6-released/
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GitLab Critical Security Release: 12.1.6, 12.0.6, and 11.11.8
Today we are releasing versions 12.1.6, 12.0.6, and 11.11.8 for GitLab
Community Edition (CE) and Enterprise Edition (EE).
These versions contain a number of important security fixes, and we strongly
recommend that all GitLab installations be upgraded to one of these versions
immediately.
The vulnerability details will be made public on our issue tracker in
approximately 30 days.
Please read on for more information regarding this release.
Insecure Authentication Methods Disabled for Grafana By Default
Basic authentication and hard-coded admin credentials are now disabled by
default in the bundled Grafana instance as part of the Omnibus-based GitLab
packages. This change forces GitLab SSO to be the only authentication method,
creates a backup of existing data, and resets the Grafana configuration to the
GitLab default. Custom dashboards and user accounts that have been created will
be preserved in the backup. Grafana authentication settings can then be
modified following the Omnibus Configuration Settings guide.
The Grafana dashboard, when accessed using the hard-coded credentials, allowed
for a malicious user to view internal resources that are accessible by the host
where the GitLab instance resides.
The issue is now mitigated in the latest release and is assigned CVE-2019-14943.
Thanks to @stargo for responsibly reporting this vulnerability to us.
Versions Affected
Affects GitLab CE/EE 12.0 and later.
Remediation
We strongly recommend that all installations running an affected version above
to be upgraded to the latest version as soon as possible.
Updating
To update, check out our update page.
Multiple Command-Line Flag Injection Vulnerabilities
Improper parameter sanitization on Gitaly could lead to privilege escalation
and remote code execution vulnerabilties under certain conditions. The issue is
now mitigated in the latest release and is assigned CVE-2019-14944.
Thanks to @vakzz for responsibly reporting this vulnerability to us.
Versions Affected
Affects GitLab CE/EE 10.0 and later.
Remediation
We strongly recommend that all installations running an affected version above
to be upgraded to the latest version as soon as possible.
Updating
To update, check out our update page.
Insecure Cookie Handling on GitLab Pages
Authentication cookies on GitLab Pages with Access Control could be sent over
HTTP and weren't properly encrypted, which made them vulnerable to
Man-In-The-Middle attacks. The issue is now mitigated in the latest release and
is assigned CVE-2019-14942.
This issue was internally discovered by the GitLab Security Team.
Versions Affected
Affects GitLab CE/EE 11.5 and later.
Remediation
We strongly recommend that all installations running an affected version above
to be upgraded to the latest version as soon as possible.
Updating
To update, check out our update page.
GitLab Critical Security Release: 12.1.6, 12.0.6, and 11.11.8 Click to tweet!
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