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Move Gitlab to new ip-adress, lfs stop working. How to fix?

We have GitLab 11.2.1-ee installation in our local network It had ip-address 192.168.1.100 before We use Git LFS in our projects And all work fine before we changed ip address of Gitlab machine. We changed the ip-adress of Gitlab machine to 192.168.160.160 and LFS stop working Now it shows error

We changed address of gitlab on clients to new one. Also we changed external_url in gitlab.rb Our git projects that do not use lfs works fine. Only projects with LFS shows this error

How to fix this?

I fix it. I miss that I must run

after editing external_url in /etc/gitlab/gitlab.rb We run this commands and all is fine now

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Not the answer you're looking for browse other questions tagged git gitlab ..

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CISA says GitLab account takeover bug is actively exploited in attacks

Sergiu gatlan.

• May 1, 2024

​CISA warned today that attackers are actively exploiting a maximum-severity GitLab vulnerability that allows them to take over accounts via password resets.

GitLab hosts sensitive data, including proprietary code and API keys, and account hijacking can have a significant impact. Successful exploitation can also lead to supply chain attacks that can compromise repositories by inserting malicious code in CI/CD (Continuous Integration/Continuous Deployment) environments.

Tracked as CVE-2023-7028 , the security flaw is due to an improper access control weakness that can allow remote unauthenticated threat actors to send password reset emails to email accounts under their control to change the password and hijack targeted accounts without user interaction.

Although attackers can't exploit this vulnerability to hijack accounts where two-factor authentication (2FA) is enabled, it's critical to patch systems where accounts are not protected with this additional security measure.

The CVE-2023-7028 bug impacts GitLab Community and Enterprise editions, and GitLab fixed it in 16.7.2, 16.5.6, and 16.6.4 and backported patches to versions 16.1.6, 16.2.9, and 16.3.7.

While threat monitoring service Shadowserver found 5,379 vulnerable GitLab instances exposed online in January (the week security patches were released), less than half (2,394) are still reachable at the moment.

​CISA added CVE-2023-7028 to its Known Exploited Vulnerabilities Catalog on Wednesday, confirming it's now actively exploited in attacks and ordering U.S. federal agencies to secure their systems within three weeks by May 22.

The U.S. cybersecurity agency hasn't shared any information regarding ongoing attacks exploiting this maximum severity GitLab security bug, but it did confirm it has no evidence that it's being used in ransomware attacks.

"These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise," CISA said today.

Although the agency's KEV catalog primarily targets federal agencies, private organizations using the GitLab DevOps platform should also prioritize patching this vulnerability to prevent attacks.

Those who haven't already patched may have been compromised already, so they should follow GitLab's incident response guide and check for signs of compromise as soon as possible.

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A 10 OUT OF 10 —

Maximum-severity gitlab flaw allowing account hijacking under active exploitation, the threat is potentially grave because it could be used in supply-chain attacks..

Dan Goodin - May 2, 2024 7:02 pm UTC

A maximum severity vulnerability that allows hackers to hijack GitLab accounts with no user interaction required is now under active exploitation, federal government officials warned as data showed that thousands of users had yet to install a patch released in January.

A change GitLab implemented in May 2023 made it possible for users to initiate password changes through links sent to secondary email addresses. The move was designed to permit resets when users didn’t have access to the email address used to establish the account. In January, GitLab disclosed that the feature allowed attackers to send reset emails to accounts they controlled and from there click on the embedded link and take over the account.

While exploits require no user interaction, hijackings work only against accounts that aren’t configured to use multifactor authentication. Even with MFA, accounts remained vulnerable to password resets, but the attackers ultimately are unable to access the account, allowing the rightful owner to change the reset password. The vulnerability, tracked as CVE-2023-7028, carries a severity rating of 10 out of 10.

On Wednesday, the US Cybersecurity and Infrastructure Security Agency said it is aware of “evidence of active exploitation” and added the vulnerability to its list of known exploited vulnerabilities. CISA provided no details about the in-the-wild attacks. A GitLab representative declined to provide specifics about the active exploitation of the vulnerability.

Further Reading

These sorts of attacks are powerful. By hacking a single, carefully selected target, attackers gain the means to infect thousands of downstream users, often without requiring them to take any action at all.

According to Internet scans performed by security organization Shadowserver, more than 2,100 IP addresses showed they were hosting one or more vulnerable GitLab instances.

The biggest concentration of IP addresses was in India, followed by the US, Indonesia, Algeria, and Thailand.

The number of IP addresses showing vulnerable instances has fallen over time. Shadowserver shows that there were more than 5,300 addresses on January 22, one week after GitLab issued the patch.

The vulnerability is classed as an improper access control flaw.

CISA has ordered all civilian federal agencies that have yet to patch the vulnerability to do so immediately. The agency made no mention of MFA, but any GitLab users who haven’t already done so should enable it, ideally with a form that complies with the FIDO industry standard.

GitLab users should also remember that patching does nothing to secure systems that have already been breached through exploits. GitLab has published incident response guidance here .

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Cyber-crime

Federal frenzy to patch gaping GitLab account takeover hole

Warning comes exactly a year after the vulnerability was introduced.

The US Cybersecurity and Infrastructure Security Agency (CISA) is forcing all federal agencies to patch a critical vulnerability in GitLab's Community and Enterprise editions, confirming it is very much under "active exploit."

When CISA adds a vulnerability to its Known Exploited Vulnerabilities (KEV) list, it means all federal civilian executive branch (FCEB) agencies usually have a maximum of 21 days to fix the issue to prevent harmful attacks on the government.

The name is somewhat of a giveaway, but security flaws added to the KEV list also mean they're known to be under active exploitation, necessitating a quick fix.

The vulnerability, tracked as CVE-2023-7028, was disclosed by GitLab in January and was assigned a maximum 10 severity rating by the platform itself, which is a certified CVE Numbering Authority (CNA). The National Vulnerability Database (NVD) gave it a mere 7.5 score, however.

At the time of disclosure, GitLab reported that the vulnerability had existed since May 2023, though there was no evidence of successful exploitation. The addition to CISA's KEV means this is now no longer the case, so get those patches installed pronto if they weren't sorted in January.

The vulnerability is classed as an improper access control flaw, offering attackers a zero-click route to a full account takeover. 

Starting in version 16.1.0, released May 1, 2023, a change was introduced that allowed users to reset their GitLab account passwords using a different email address, and a bug in the verification process opened up the vulnerability.

A specially crafted HTTP request sends a password reset link to an unverified, attacker-controlled email address, enabling unauthorized account takeovers.

Given the nature of GitLab's business, the obvious danger here is the vulnerability being abused by attackers to carry out software supply chain attacks – surreptitiously modifying source code to breach countless organizations.

Russia with SolarWinds and North Korea with 3CX are two examples of adversarial nations with an appetite for supply chain attacks in recent years. Ransomware crews such as REvil with Kaseya and Cl0p with MOVEit are also no strangers to compromising software at the source, although CISA said it isn't aware of any ransomware-associated activity with the GitLab flaw yet.

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The upshot of all this is that admins who enabled some form of two-factor authentication (2FA) in GitLab are safe and unaffected by the vulnerability. And of course you enabled 2FA , didn't you?

The following versions are vulnerable: 

16.1 to 16.1.5

16.2 to 16.2.8

16.3 to 16.3.6

16.4 to 16.4.4

16.5 to 16.5.5

16.6 to 16.6.3

16.7 to 16.7.1

Shadowserver data showing number of vulnerable GitLab instances since the vulnerability's disclosure – click to enlarge

Shadowserver's data shows that the number of publicly exposed GitLab instances has more than halved since the vulnerability's disclosure. There are currently 2,149 vulnerable GitLab environments, down from 4,652 in January, with the largest concentration in Europe and Asia.

GitLab fixed the vulnerability in versions 16.5.6, 16.6.4, and 16.7.2, and also backported the patches for versions 16.1.6, 16.2.9, 16.3.7, and 16.4.5. ®

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Change the hostname of your AL2 instance

When you launch an instance into a private VPC, Amazon EC2 assigns a guest OS hostname. The type of hostname that Amazon EC2 assigns depends on your subnet settings. For more information about EC2 hostnames, see Amazon EC2 instance hostname types in the Amazon EC2 User Guide for Linux Instances .

A typical Amazon EC2 private DNS name for an EC2 instance configured to use IP-based naming with an IPv4 address looks something like this: ip-12-34-56-78.us-west-2.compute.internal , where the name consists of the internal domain, the service (in this case, compute ), the region, and a form of the private IPv4 address. Part of this hostname is displayed at the shell prompt when you log into your instance (for example, ip-12-34-56-78 ). Each time you stop and restart your Amazon EC2 instance (unless you are using an Elastic IP address), the public IPv4 address changes, and so does your public DNS name, system hostname, and shell prompt.

This information applies to Amazon Linux. For information about other distributions, see their specific documentation.

Change the system hostname

If you have a public DNS name registered for the IP address of your instance (such as webserver.mydomain.com ), you can set the system hostname so your instance identifies itself as a part of that domain. This also changes the shell prompt so that it displays the first portion of this name instead of the hostname supplied by AWS (for example, ip-12-34-56-78 ). If you do not have a public DNS name registered, you can still change the hostname, but the process is a little different.

In order for your hostname update to persist, you must verify that the preserve_hostname cloud-init setting is set to true . You can run the following command to edit or add this setting:

If the preserve_hostname setting is not listed, add the following line of text to the end of the file:

To change the system hostname to a public DNS name

Follow this procedure if you already have a public DNS name registered.

For AL2: Use the hostnamectl command to set your hostname to reflect the fully qualified domain name (such as webserver.mydomain.com ).

For Amazon Linux AMI: On your instance, open the /etc/sysconfig/network configuration file in your favorite text editor and change the HOSTNAME entry to reflect the fully qualified domain name (such as webserver.mydomain.com ).

Reboot the instance to pick up the new hostname.

Alternatively, you can reboot using the Amazon EC2 console (on the Instances page, select the instance and choose Instance state , Reboot instance ).

Log into your instance and verify that the hostname has been updated. Your prompt should show the new hostname (up to the first ".") and the hostname command should show the fully-qualified domain name.

To change the system hostname without a public DNS name

For AL2: Use the hostnamectl command to set your hostname to reflect the desired system hostname (such as webserver ).

For Amazon Linux AMI: On your instance, open the /etc/sysconfig/network configuration file in your favorite text editor and change the HOSTNAME entry to reflect the desired system hostname (such as webserver ).

Open the /etc/hosts file in your favorite text editor and change the entry beginning with 127.0.0.1 to match the example below, substituting your own hostname.

You can also implement more programmatic solutions, such as specifying user data to configure your instance. If your instance is part of an Auto Scaling group, you can use lifecycle hooks to define user data. For more information, see Run commands on your Linux instance at launch and Lifecycle hook for instance launch in the AWS CloudFormation User Guide .

Change the shell prompt without affecting the hostname

If you do not want to modify the hostname for your instance, but you would like to have a more useful system name (such as webserver ) displayed than the private name supplied by AWS (for example, ip-12-34-56-78 ), you can edit the shell prompt configuration files to display your system nickname instead of the hostname.

To change the shell prompt to a host nickname

Create a file in /etc/profile.d that sets the environment variable called NICKNAME to the value you want in the shell prompt. For example, to set the system nickname to webserver , run the following command.

Open the /etc/bashrc (Red Hat) or /etc/bash.bashrc (Debian/Ubuntu) file in your favorite text editor (such as vim or nano ). You need to use sudo with the editor command because /etc/bashrc and /etc/bash.bashrc are owned by root .

Edit the file and change the shell prompt variable ( PS1 ) to display your nickname instead of the hostname. Find the following line that sets the shell prompt in /etc/bashrc or /etc/bash.bashrc (several surrounding lines are shown below for context; look for the line that starts with [ "$PS1" ):

Change the \h (the symbol for hostname ) in that line to the value of the NICKNAME variable.

(Optional) To set the title on shell windows to the new nickname, complete the following steps.

Create a file named /etc/sysconfig/bash-prompt-xterm .

Make the file executable using the following command.

Open the /etc/sysconfig/bash-prompt-xterm file in your favorite text editor (such as vim or nano ). You need to use sudo with the editor command because /etc/sysconfig/bash-prompt-xterm is owned by root .

Add the following line to the file.

Log out and then log back in to pick up the new nickname value.

Change the hostname on other Linux distributions

The procedures on this page are intended for use with Amazon Linux only. For more information about other Linux distributions, see their specific documentation and the following articles:

How do I assign a static hostname to a private Amazon EC2 instance running RHEL 7 or Centos 7?

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Modify the GitLab host name

Change the default address automatically.

It is advisable to use a host name instead of an IP address for Gitlab. However, we recommend not using git. in the host name as this causes problems when accessing Gitlab over HTTP.

Follow these steps:

At the server console, run the following command:

NOTE: If the result of the previous command shows a command not found error, execute the following command instead: $ sudo /opt/bitnami/apps/gitlab/bnconfig --machine_hostname IP_OR_DOMAIN IMPORTANT: If you’ve configured GitLab to use a static domain name, remove or rename the /opt/bitnami/apps/gitlab/bnconfig file to avoid it being reset on the next system reboot.

Change the default address manually for GitLab

To configure an external URL for GitLab, modify the external_url parameter in the /etc/gitlab/gitlab.rb file:

Run the gitlab-ctl script to apply the changes as follows:

Changes domain to local IP address in URL

Hello, please tell me how to fix the following problem. When entering through the browser by https://mysite.com it’s redirect to the page with url https://192.168.1.78/users/sign_in . 192.168.1.78 is the local IP address where GitLab Docker Image up. “Keenetic” router through the service “KeenDNS” redirects https traffic to local server with local IP 192.168.1.78. If in Browser manually change IP to domain then no redirects and all work fine. Thanks

The only two things I can think of it.

• external_url in gitlab, what was it configured with? IP or hostname/domain name for use with Gitlab?
• you mention keenetic router? Is this working as a proxy and if so, what is its redirect configuration?
• external_url like https://gitlab.mysite.keenetic.link/
• I can’t find information how it work, because it’s use service KeenDNS and no settings except routing domain name to local ip address and port. Example( https://help.keenetic.com/hc/en-us/articles/360000563719 )

while trying different configurations I’ve got managed solve this problem, but for that I setup routing all traffic by ports 443 to local ip, where GitLab Docker working

I’m having exactly the same issue with exactly the same Keenetic KeenDNS thing could you please elaborate on how you managed to solve this issue?