Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.0376
GitLab Security Release: 12.7.4, 12.6.6, and 12.5.9
31 January 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Gitlab Enterprise Edition (EE)
GitLab Community Edition (CE)
Publisher: GitLab
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Virtualisation
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Denial of Service -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Unauthorised Access -- Existing Account
Reduced Security -- Unknown/Unspecified
Resolution: Patch/Upgrade
CVE Names: CVE-2020-8114 CVE-2020-7979 CVE-2020-7978
CVE-2020-7977 CVE-2020-7976 CVE-2020-7974
CVE-2020-7973 CVE-2020-7972 CVE-2020-7971
CVE-2020-7969 CVE-2020-7968 CVE-2020-7967
CVE-2020-7966 CVE-2020-6833 CVE-2019-18978
CVE-2019-16892 CVE-2019-16779
Reference: ESB-2020.0202
ESB-2019.4672
Original Bulletin:
https://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/
- --------------------------BEGIN INCLUDED TEXT--------------------
Jan 30, 2020 - Andrew Kelly
GitLab Security Release: 12.7.4, 12.6.6, and 12.5.9
Today we are releasing versions 12.7.4, 12.6.6, and 12.5.9 for GitLab Community
Edition (CE) and Enterprise Edition (EE).
The vulnerability details will be made public on our issue tracker in
approximately 30 days.
Please read on for more information regarding this release.
Path Traversal to Arbitrary File Read
The dependency proxy was found to have a path traversal vulnerability that if
combined with an arbitrary file read vulnerability could potentially result in
access to files and user data. The issue is now mitigated in the latest release
and is assigned CVE-2020-7966.
Thanks to @nyangawa of Chaitin Tech for responsibly reporting this
vulnerability to us.
Versions Affected
Affects GitLab EE 11.11 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
User Permissions Not Validated in ProjectExportWorker
An internal investigation revealed that permissions were not being validated in
the ProjectExportWorker for the user scheduling exports. The issue is now
mitigated in the latest release and is assigned CVE-2020-8114.
Versions Affected
Affects GitLab EE 8.9 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
XSS Vulnerability in File API
Under certain conditions, requests involving the file API could result in an
XSS vulnerability. The issue is now mitigated in the latest release and is
assigned CVE-2020-7973.
Thanks to @rpadovani for responsibly reporting this vulnerability to us.
Versions Affected
Affects all previous GitLab versions.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Package and File Disclosure through GitLab Workhorse
An internal investigation revealed that a particular header could be used to
override restrictions and result in the GitLab Workhorse disclosing packages
and files in the /tmp directory. The issue is now mitigated in the latest
release and is assigned CVE-2020-6833.
Versions Affected
Affects GitLab EE 11.3 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
XSS Vulnerability in Create Groups
A stored XSS vulnerability was discovered using the create group functionality.
The issue is now mitigated in the latest release and is assigned CVE-2020-7971.
Thanks to @rioncool22 for responsibly reporting this vulnerability to us.
Versions Affected
Affects GitLab EE 11.0 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Issue and Merge Request Activity Counts Exposed
Despite project settings otherwise, non-members were able to view activity
counts of issues and merge requests. The issue is now mitigated in the latest
release and is assigned CVE-2020-7967.
Thanks to @ashish_r_padelkar for responsibly reporting this vulnerability to
us.
Versions Affected
Affects GitLab EE 12.0 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Email Confirmation Bypass Using API
It was discovered that a certain API endpoint could be used to bypass email
verification requirements. The issue is now mitigated in the latest release and
is assigned CVE-2020-7972.
Thanks to @whitehattushu for responsibly reporting this vulnerability to us.
Versions Affected
Affects GitLab EE 12.0 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Disclosure of Forked Private Project Source Code
Authorization checks were not being applied in some cases for public
repositories with merge request visibility set to members only, resulting in
source code potentially being disclosed. The issue is now mitigated in the
latest release and is assigned CVE-2020-7968.
Thanks to @ngalog for responsibly reporting this vulnerability to us.
Versions Affected
Affects all previous GitLab versions.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Private Project Names Exposed in GraphQL queries
Under certain conditions, particularly crafted GraphQL queries could expose
private project names. The issue is now mitigated in the latest release and is
assigned CVE-2020-7979.
Thanks to @ashish_r_padelkar for responsibly reporting this vulnerability to
us.
Versions Affected
Affects GitLab EE 12.0 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Disclosure of Issues and Merge Requests via Todos
Unexpired Todos could be leveraged to disclose (potentially confidential)
issues and merge requests. The issue is now mitigated in the latest release and
is assigned CVE-2020-7969.
Thanks to @xanbanx for responsibly reporting this vulnerability to us.
Versions Affected
Affects GitLab EE 8.0 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Denial of Service via AsciiDoc
Certain payloads could result in a denial of service due to abuse of AsciiDoc
includes. The issue is now mitigated in the latest release and is assigned
CVE-2020-7978.
Thanks to @kgadyrka for responsibly reporting this vulnerability to us.
Versions Affected
Affects GitLab EE 12.6 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Last Pipeline Status Exposed
Despite restrictions in place, the last pipeline status was visible via the
commits API. The issue is now mitigated in the latest release and is assigned
CVE-2020-7974.
Thanks to @ashish_r_padelkar for responsibly reporting this vulnerability to
us.
Versions Affected
Affects GitLab EE 10.1 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Arbitrary Change of Pipeline Status
Under certain conditions, a developer of a project can change the pipeline
status of a protected branch to any value. The issue is now mitigated in the
latest release and is assigned CVE-2020-7977.
Thanks to @rpadovani for responsibly reporting this vulnerability to us.
Versions Affected
Affects GitLab EE 8.8 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Grafana Token Displayed in Plaintext
The Grafana token was displayed in plaintext on the settings page, but is now
being masked. The issue is now mitigated in the latest release and is assigned
CVE-2020-7976.
Thanks to @xanbanx for responsibly reporting this vulnerability to us.
Versions Affected
Affects GitLab EE 12.4 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Update excon gem
The excon gem was updated to address a flaw within that library, identified as
CVE-2019-16779.
Versions Affected
Affects GitLab 5.3 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Update rdoc gem
The rdoc gem was updated, which removed an older version of the jQuery library
that had several known security vulnerabilities.
Versions Affected
Affects GitLab EE 12.6 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Update rack-cors gem
The rack-cors gem was updated to address a vulnerability in that library,
CVE-2019-18978.
Versions Affected
Affects GitLab 6.4 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Update rubyzip gem
The rubyzip gem was updated to address a vulnerability in that library,
CVE-2019-16892.
Versions Affected
Affects GitLab EE 8.3 and later.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Apply January Mattermost Security Updates (GitLab Omnibus)
The January Mattermost Security Updates were applied.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Updating
To update GitLab, see the Update page.
Receive Security Release Notifications
To receive security release blog notifications delivered to your inbox, visit
our contact us page. To receive security release blog notifications via RSS,
subscribe to our RSS feed.
GitLab Security Release: 12.7.4, 12.6.6, and 12.5.9
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=LovH
-----END PGP SIGNATURE-----