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AUSCERT External Security Bulletin Redistribution
ESB-2021.1456
GitLab Security Release: 13.11.2, 13.10.4, and 13.9.7
29 April 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: GitLab Community Edition
GitLab Enterprise Edition
Publisher: GitLab
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Virtualisation
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Provide Misleading Information -- Existing Account
Reduced Security -- Remote/Unauthenticated
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-22211 CVE-2021-22210 CVE-2021-22209
CVE-2021-22208 CVE-2021-22206
Original Bulletin:
https://about.gitlab.com/releases/2021/04/28/security-release-gitlab-13-11-2-released/
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GitLab Security Release: 13.11.2, 13.10.4, and 13.9.7
Today we are releasing versions 13.11.2, 13.10.4, and 13.9.7 for GitLab
Community Edition (CE) and Enterprise Edition (EE).
These versions contain important security fixes, and we strongly recommend that
all GitLab installations be upgraded to one of these versions immediately.
GitLab releases patches for vulnerabilities in dedicated security releases.
There are two types of security releases: a monthly, scheduled security
release, released a week after the feature release (which deploys on the 22nd
of each month), and ad-hoc security releases for critical vulnerabilities. For
more information, you can visit our security FAQ. You can see all of our
regular and security release blog posts here. In addition, the issues detailing
each vulnerability are made public on our issue tracker 30 days after the
release in which they were patched.
We are dedicated to ensuring all aspects of GitLab that are exposed to
customers or that host customer data are held to the highest security
standards. As part of maintaining good security hygiene, it is highly
recommended that all customers upgrade to the latest security release for their
supported version. You can read more best practices in securing your GitLab
instance in our blog post.
Table of Fixes
Title Severity
Read API scoped tokens can execute mutations high
Pull mirror credentials are exposed medium
Denial of Service when querying repository branches API medium
Non-owners can set system_note_timestamp when creating / medium
updating issues
DeployToken will impersonate a User with the same ID when low
using Dependency Proxy
Update Python dependency Dependency Update -
critical
Update Redis dependency Dependency Update -
high
Update carrierwave gem Dependency Update -
high
Update Mermaid npm package Dependency Update -
high
Read API scoped tokens can execute mutations
An issue has been discovered in GitLab CE/EE affecting all versions starting
from 13.8. GitLab was not properly validating authorisation tokens which
resulted in GraphQL mutation being executed. This is a high severity issue
(CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N, 7.5). It is now mitigated in the
latest release and is assigned CVE-2021-22209.
This vulnerability has been discovered internally by the GitLab team.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Pull mirror credentials were exposed
An issue has been discovered in GitLab affecting all versions starting from
11.6. Pull mirror credentials were exposed and could allow other maintainers to
view the credentials in plain-text. This is a medium severity issue (CVSS:3.1/
AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N, 6.8). It is now mitigated in the latest
release and is assigned CVE-2021-22206.
Thanks jlneel for reporting this vulnerability through our HackerOne bug bounty
program.
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 when querying repository branches API
An issue has been discovered in GitLab CE/EE affecting all versions starting
from 13.2. When querying the repository branches through API, GitLab was
ignoring a query parameter and returning a considerable amount of results. This
is a medium severity issue (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, 5.3).
It is now mitigated in the latest release and is assigned CVE-2021-22210.
This vulnerability has been discovered internally by the GitLab team.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Non-owners can set system_note_timestamp when creating / updating issues
An issue has been discovered in GitLab affecting versions prior to 13.5.
Improper permission check could allow the change of timestamp for issue
creation or update. This is a medium severity issue (CVSS:3.1/AV:N/AC:L/PR:L/
UI:N/S:U/C:N/I:L/A:N, 4.3). It is now mitigated in the latest release and is
assigned CVE-2021-22208.
This vulnerability has been discovered internally by the GitLab team.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
DeployToken will impersonate a User with the same ID when using Dependency
Proxy
An issue has been discovered in GitLab CE/EE affecting all versions starting
from 13.7. GitLab Dependency Proxy, under certain circumstances, can
impersonate a user resulting in possibly incorrect access handling. This is a
low severity issue (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L, 3.1). It is
now mitigated in the latest release and is assigned CVE-2021-22211.
This vulnerability has been discovered internally by the GitLab team.
Remediation
We strongly recommend that all installations running an affected version above
are upgraded to the latest version as soon as possible.
Update Python dependency
The dependency on Python has been upgraded to 3.7.10 in order to mitigate
security concerns.
Versions affected
Affects Omnibus versions 12.0 and later.
Update Redis dependency
The dependency on Redis has been upgraded to 6.0.12 in order to mitigate
security concerns.
Versions affected
Affects versions 12.7 and later.
Update carrierwave gem
The carrierwave gem has been upgraded to 1.3.2 in order to mitigate security
concerns.
Versions affected
Affects all versions.
Update Mermaid npm package
The Mermaid npm package has been upgraded to 8.9.2 in order to mitigate
security concerns.
Versions affected
Affects versions 13.9 and later.
Updating
To update GitLab, see the Update page. To update Gitlab Runner, see the
Updating the Runner page.
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