Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2023.3006
GitLab Critical Security Release: 16.0.1
24 May 2023
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AusCERT Security Bulletin Summary
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Product: GitLab Community Edition (CE)
GitLab Enterprise Edition (EE)
Publisher: GitLab
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2023-2825
Original Bulletin:
https://about.gitlab.com/releases/2023/05/23/critical-security-release-gitlab-16-0-1-released/
Comment: CVSS (Max): 10.0 CVE-2023-2825 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N)
CVSS Source: GitLab
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
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GitLab Critical Security Release: 16.0.1
Learn more about GitLab Critical Security Release: 16.0.1 for GitLab Community
Edition (CE) and Enterprise Edition (EE).
Today we are releasing version 16.0.1 for GitLab Community Edition (CE) and
Enterprise Edition (EE). It is only required for installations running 16.0.0.
Earlier versions are not affected.
This version contains important security fixes, and we strongly recommend that
GitLab installations running 16.0.0 be upgraded immediately. GitLab.com is
already running the patched version.
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.
Recommended Action
We strongly recommend that all installations running a version affected by the
issues described below are upgraded to the latest version as soon as possible.
When no specific deployment type (omnibus, source code, helm chart, etc.) of a
product is mentioned, this means all types are affected.
Table of Fixes
Title Severity
Arbitrary file read via uploads path traversal critical
Arbitrary file read via uploads path traversal
An issue has been discovered in GitLab CE/EE affecting only version 16.0.0. An
unauthenticated malicious user can use a path traversal vulnerability to read
arbitrary files on the server when an attachment exists in a public project
nested within at least five groups. This is a critical severity issue (CVSS:3.1
/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N, 10.0). It is now mitigated in the latest
release and is assigned CVE-2023-2825.
Thanks pwnie for reporting this vulnerability through our HackerOne bug bounty
program.
Updating
To update GitLab, see the Update page. To update Gitlab Runner, see the
Updating the Runner page.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
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