Chad Wilson

11 exploits Active since Apr 2022
CVE-2022-24832 WRITEUP HIGH WRITEUP
GoCD 17.5.0-22.1.0 - LDAP Injection via Username Parameter
GoCD is an open source a continuous delivery server. The bundled gocd-ldap-authentication-plugin included with the GoCD Server fails to correctly escape special characters when using the username to construct LDAP queries. While this does not directly allow arbitrary LDAP data exfiltration, it can allow an existing LDAP-authenticated GoCD user with malicious intent to construct and execute malicious queries, allowing them to deduce facts about other users or entries within the LDAP database (e.g alternate fields, usernames, hashed passwords etc) through brute force mechanisms. This only affects users who have a working LDAP authorization configuration enabled on their GoCD server, and only is exploitable by users authenticating using such an LDAP configuration. This issue has been fixed in GoCD 22.1.0, which is bundled with gocd-ldap-authentication-plugin v2.2.0-144.
CVSS 8.2
CVE-2023-28629 WRITEUP MEDIUM WRITEUP
GoCD < 23.1.0 - Stored Cross-Site Scripting via Pipeline Label Configuration
GoCD is an open source continuous delivery server. GoCD versions before 23.1.0 are vulnerable to a stored XSS vulnerability, where pipeline configuration with a malicious pipeline label configuration can affect browser display of pipeline runs generated from that configuration. An attacker that has permissions to configure GoCD pipelines could include JavaScript elements within the label template, causing a XSS vulnerability to be triggered for any users viewing the Value Stream Map or Job Details for runs of the affected pipeline, potentially allowing them to perform arbitrary actions within the victim's browser context rather than their own. This issue has been fixed in GoCD 23.1.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS 5.4
CVE-2022-29184 WRITEUP HIGH WRITEUP
GoCD < 22.1.0 - Authenticated Remote Code Execution via Mercurial Hook Branch Name Injection
GoCD is a continuous delivery server. In GoCD versions prior to 22.1.0, it is possible for existing authenticated users who have permissions to edit or create pipeline materials or pipeline configuration repositories to get remote code execution capability on the GoCD server via configuring a malicious branch name which abuses Mercurial hooks/aliases to exploit a command injection weakness. An attacker would require access to an account with existing GoCD administration permissions to either create/edit (`hg`-based) configuration repositories; create/edit pipelines and their (`hg`-based) materials; or, where "pipelines-as-code" configuration repositories are used, to commit malicious configuration to such an external repository which will be automatically parsed into a pipeline configuration and (`hg`) material definition by the GoCD server. This issue is fixed in GoCD 22.1.0. As a workaround, users who do not use/rely upon Mercurial materials can uninstall/remove the `hg`/Mercurial binary from the underlying GoCD Server operating system or Docker image.
CVSS 8.8
CVE-2022-36088 WRITEUP MEDIUM WRITEUP
GoCD <22.2.0 - Privilege Escalation
GoCD is a continuous delivery server. Windows installations via either the server or agent installers for GoCD prior to 22.2.0 do not adequately restrict permissions when installing outside of the default location. This could allow a malicious user with local access to the server GoCD Server or Agent are installed on to modify executables or components of the installation. This does not affect zip file-based installs, installations to other platforms, or installations inside `Program Files` or `Program Files (x86)`. This issue is fixed in GoCD 22.2.0 installers. As a workaround, if the server or agent is installed outside of `Program Files (x86)`, verify the the permission of the Server or Agent installation directory to ensure the `Everyone` user group does not have `Full Control`, `Modify` or `Write` permissions.
CVSS 5.0
CVE-2023-28629 WRITEUP MEDIUM WRITEUP
GoCD < 23.1.0 - Stored Cross-Site Scripting via Pipeline Label Configuration
GoCD is an open source continuous delivery server. GoCD versions before 23.1.0 are vulnerable to a stored XSS vulnerability, where pipeline configuration with a malicious pipeline label configuration can affect browser display of pipeline runs generated from that configuration. An attacker that has permissions to configure GoCD pipelines could include JavaScript elements within the label template, causing a XSS vulnerability to be triggered for any users viewing the Value Stream Map or Job Details for runs of the affected pipeline, potentially allowing them to perform arbitrary actions within the victim's browser context rather than their own. This issue has been fixed in GoCD 23.1.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS 5.4
CVE-2023-28630 WRITEUP MEDIUM WRITEUP
GoCD 20.5.0-23.1.0 - Database Credential Exposure via Backup Failure Alert
GoCD is an open source continuous delivery server. In GoCD versions from 20.5.0 and below 23.1.0, if the server environment is not correctly configured by administrators to provide access to the relevant PostgreSQL or MySQL backup tools, the credentials for database access may be unintentionally leaked to admin alerts on the GoCD user interface. The vulnerability is triggered only if the GoCD server host is misconfigured to have backups enabled, but does not have access to the `pg_dump` or `mysqldump` utility tools to backup the configured database type (PostgreSQL or MySQL respectively). In such cases, failure to launch the expected backup utility reports the shell environment used to attempt to launch in the server admin alert, which includes the plaintext database password supplied to the configured tool. This vulnerability does not affect backups of the default on-disk H2 database that GoCD is configured to use. This issue has been addressed and fixed in GoCD 23.1.0. Users are advised to upgrade. Users unable to upgrade may disable backups, or administrators should ensure that the required `pg_dump` (PostgreSQL) or `mysqldump` (MySQL) binaries are available on the GoCD server when backups are triggered.
CVSS 4.2
CVE-2024-28866 WRITEUP LOW WRITEUP
GoCD 19.4.0-23.5.0 - Reflected Cross-Site Scripting via Redirect Query Parameter
GoCD is a continuous delivery server. GoCD versions from 19.4.0 to 23.5.0 (inclusive) are potentially vulnerable to a reflected cross-site scripting vulnerability on the loading page displayed while GoCD is starting, via abuse of a `redirect_to` query parameter with inadequate validation. Attackers could theoretically abuse the query parameter to steal session tokens or other values from the user's browser. In practice exploiting this to perform privileged actions is likely rather difficult to exploit because the target user would need to be triggered to open an attacker-crafted link in the period where the server is starting up (but not completely started), requiring chaining with a separate denial-of-service vulnerability. Additionally, GoCD server restarts invalidate earlier session tokens (i.e GoCD does not support persistent sessions), so a stolen session token would be unusable once the server has completed restart, and executed XSS would be done within a logged-out context. The issue is fixed in GoCD 24.1.0. As a workaround, it is technically possible in earlier GoCD versions to override the loading page with an earlier version which is not vulnerable, by starting GoCD with the Java system property override as either `-Dloading.page.resource.path=/loading_pages/default.loading.page.html` (simpler early version of loading page without GoCD introduction) or `-Dloading.page.resource.path=/does_not_exist.html` (to display a simple message with no interactivity).
CVSS 3.1
CVE-2024-56320 WRITEUP HIGH WRITEUP
GoCD < 24.5.0 - Authenticated Privilege Escalation via Configuration XML UI
GoCD is a continuous deliver server. GoCD versions prior to 24.5.0 are vulnerable to admin privilege escalation due to improper authorization of access to the admin "Configuration XML" UI feature, and its associated API. A malicious insider/existing authenticated GoCD user with an existing GoCD user account could abuse this vulnerability to access information intended only for GoCD admins, or to escalate their privileges to that of a GoCD admin in a persistent manner. it is not possible for this vulnerability to be abused prior to authentication/login. The issue is fixed in GoCD 24.5.0. GoCD users who are not able to immediate upgrade can mitigate this issue by using a reverse proxy, WAF or similar to externally block access paths with a `/go/rails/` prefix. Blocking this route causes no loss of functionality. If it is not possible to upgrade or block the above route, consider reducing the GoCD user base to more trusted set of users, including temporarily disabling use of plugins such as the guest-login-plugin, which allow limited anonymous access as a regular user account.
CVSS 8.8
CVE-2024-56321 WRITEUP LOW WRITEUP
GoCD 18.9.0-24.4.0 - Authenticated Arbitrary Script Execution via Backup Configuration Post-Backup Script
GoCD is a continuous deliver server. GoCD versions 18.9.0 through 24.4.0 (inclusive) can allow GoCD admins to abuse the backup configuration "post-backup script" feature to potentially execute arbitrary scripts on the hosting server or container as GoCD's user, rather than pre-configured scripts. In practice the impact of this vulnerability is limited, as in most configurations a user who can log into the GoCD UI as an admin also has host administration permissions for the host/container that GoCD runs on, in order to manage artifact storage and other service-level configuration options. Additionally, since a GoCD admin has ability to configure and schedule pipelines tasks on all GoCD agents available to the server, the fundamental functionality of GoCD allows co-ordinated task execution similar to that of post-backup-scripts. However in restricted environments where the host administration is separated from the role of a GoCD admin, this may be unexpected. The issue is fixed in GoCD 24.5.0. Post-backup scripts can no longer be executed from within certain sensitive locations on the GoCD server. No known workarounds are available.
CVSS 3.8
CVE-2024-56322 WRITEUP HIGH WRITEUP
GoCD 16.7.0-24.4.0 - Authenticated XML External Entity Injection via Configuration Repository
GoCD is a continuous deliver server. GoCD versions 16.7.0 through 24.4.0 (inclusive) can allow GoCD admins to abuse a hidden/unused configuration repository (pipelines as code) feature to allow XML External Entity (XXE) injection on the GoCD Server which will be executed when GoCD periodically scans configuration repositories for pipeline updates, or is triggered by an administrator or config repo admin. In practice the impact of this vulnerability is limited, in most cases without combining with another vulnerability, as only GoCD (super) admins have the ability to abuse this vulnerability. Typically a malicious GoCD admin can cause much larger damage than that they can do with XXE injection. The issue is fixed in GoCD 24.5.0. As a workaround, prevent external access from the GoCD server to arbitrary locations using some kind of environment egress control.
CVSS 7.2
CVE-2024-56324 WRITEUP HIGH WRITEUP
GoCD < 24.5.0 - Authenticated XML External Entity Injection via Group Admin Raw XML Configuration
GoCD is a continuous deliver server. GoCD versions prior to 24.4.0 can allow GoCD "group admins" to abuse ability to edit the raw XML configuration for groups they administer to trigger XML External Entity (XXE) injection on the GoCD server. Theoretically, the XXE vulnerability can result in additional attacks such as SSRF, information disclosure from the GoCD server, and directory traversal, although these additional attacks have not been explicitly demonstrated as exploitable. This issue is fixed in GoCD 24.5.0. Some workarounds are available. One may temporarily block access to `/go/*/pipelines/snippet` routes from an external reverse proxy or WAF if one's "group admin" users do not need the functionality to edit the XML of pipelines directly (rather than using the UI, or using a configuration repository). One may also prevent external access from one's GoCD server to arbitrary locations using some kind of environment egress control.
CVSS 7.1