=================================================================== CERT-Renater Note d'Information No. 2023/VULN295 _____________________________________________________________________ DATE : 06/09/2023 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Assembla Auth Plugin for Jenkins, AWS CodeCommit Trigger Plugin for Jenkins, Azure AD Plugin for Jenkins, Bitbucket Push and Pull Request Plugin for Jenkins, Frugal Testing Plugin for Jenkins, Google Login Plugin for Jenkins, Ivy Plugin, Job Configuration History Plugin, Pipeline Maven Integration Plugin, Qualys Container Scanning Connector Plugin, SSH2 Easy Plugin for Jenkins, TAP Plugin for Jenkins. ====================================================================https://www.jenkins.io/security/advisory/2023-09-06/ _____________________________________________________________________ Jenkins Security Advisory 2023-09-06 This advisory announces vulnerabilities in the following Jenkins deliverables: Assembla Auth Plugin AWS CodeCommit Trigger Plugin Azure AD Plugin Bitbucket Push and Pull Request Plugin Frugal Testing Plugin Google Login Plugin Ivy Plugin Job Configuration History Plugin Pipeline Maven Integration Plugin Qualys Container Scanning Connector Plugin SSH2 Easy Plugin TAP Plugin Descriptions Path traversal allows exploiting XSS vulnerability in Job Configuration History Plugin SECURITY-3233 / CVE-2023-41930 (path traversal), CVE-2023-41931 (XSS) Severity (CVSS): High Affected plugin: jobConfigHistory Description: Job Configuration History Plugin 1227.v7a_79fc4dc01f and earlier does not restrict a name query parameter when rendering a history entry. This allows attackers to have Jenkins render a manipulated configuration history that was not created by the plugin. The history view does not property sanitize or escape the timestamp value from history entries when rendering a history entry. This typically isn’t a problem, as the value is numeric in genuine history entries. Combined with the path traversal vulnerability, this results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to create a file on the controller (e.g., archived artifacts). Job Configuration History Plugin 1229.v3039470161a_d restricts the name query parameter when rendering a history entry, and escapes the timestamp value from history entries on the history view. Path traversal allows exploiting XXE vulnerability in Job Configuration History Plugin SECURITY-3235 / CVE-2023-41932 (path traversal), CVE-2023-41933 (XXE) Severity (CVSS): High Affected plugin: jobConfigHistory Description: Job Configuration History Plugin 1227.v7a_79fc4dc01f and earlier does not restrict timestamp query parameters in multiple endpoints. This allows attackers with Job Config History/DeleteEntry permission to delete attacker-specified directories on the Jenkins controller file system as long as they contain a file called history.xml. Additionally, Job Configuration History Plugin 1227.v7a_79fc4dc01f and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks. This allows attackers with Item/Configure permission to have Jenkins parse a crafted XML document that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Job Configuration History Plugin 1229.v3039470161a_d restricts timestamp query parameters in the affected endpoints, and disables external entity resolution for its XML parser. Improper masking of credentials in Pipeline Maven Integration Plugin SECURITY-3257 / CVE-2023-41934 Severity (CVSS): Medium Affected plugin: pipeline-maven Description: Pipeline Maven Integration Plugin integrates with Config File Provider Plugin to specify custom Maven settings, including credentials for authentication. Pipeline Maven Integration Plugin 1330.v18e473854496 and earlier does not properly mask (i.e., replace with asterisks) usernames of credentials specified in custom Maven settings in Pipeline build logs if "Treat username as secret" is checked. Pipeline Maven Integration Plugin 1331.v003efa_fd6e81 masks usernames of credentials specified in custom Maven settings files in Pipeline build logs. Non-constant time nonce comparison in Azure AD Plugin SECURITY-3227 / CVE-2023-41935 Severity (CVSS): Low Affected plugin: azure-ad Description: Azure AD Plugin 396.v86ce29279947 and earlier, except 378.380.v545b_1154b_3fb_, does not use a constant-time comparison when checking whether the provided and expected CSRF protection nonce are equal. This could potentially allow attackers to use statistical methods to obtain a valid nonce. Azure AD Plugin 397.v907382dd9b_98 uses a constant-time comparison when validating the nonce. Non-constant time token comparison in Google Login Plugin SECURITY-3228 / CVE-2023-41936 Severity (CVSS): Low Affected plugin: google-login Description: Google Login Plugin 1.7 and earlier does not use a constant-time comparison when checking whether the provided and expected token are equal. This could potentially allow attackers to use statistical methods to obtain a valid token. Google Login Plugin 1.8 uses a constant-time comparison when validating the token. SSRF vulnerability in Bitbucket Push and Pull Request Plugin allows capturing credentials SECURITY-3165 / CVE-2023-41937 Severity (CVSS): Medium Affected plugin: bitbucket-push-and-pull-request Description: Bitbucket Push and Pull Request Plugin provides a webhook endpoint at /bitbucket-hook/ to receive webhook notifications. When acting on these notifications, Bitbucket Push and Pull Request Plugin 2.4.0 through 2.8.3 (both inclusive) trusts values provided in the webhook payload, including certain URLs, and uses configured Bitbucket credentials to connect to those URLs. This allows attackers to capture Bitbucket credentials stored in Jenkins by sending a crafted webhook payload. Successful exploitation requires that a build is triggered. This is the case when the repository has changed since the previous build, or the option "Trigger also if nothing has changed in the repo" is checked. Bitbucket Push and Pull Request Plugin 2.8.4 connects to the Bitbucket endpoint configured for the job when acting on a webhook notification. Incorrect permission checks in Qualys Container Scanning Connector Plugin SECURITY-3018 / CVE pending Severity (CVSS): High Affected plugin: qualys-cs Description: Qualys Container Scanning Connector Plugin 1.6.2.6 and earlier does not correctly perform a permission check in multiple HTTP endpoints. This allows attackers with global Item/Configure permission (while lacking Item/Configure permission on any particular job) to do the following: Enumerate credentials IDs of credentials stored in Jenkins. Those can be used as part of an attack to capture the credentials using another vulnerability. Connect to an attacker-specified webserver using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins. Qualys Container Scanning Connector Plugin 1.6.2.7 requires global Overall/Administer permission, or Item/Configure permission on a job, to access the affected endpoint. XXE vulnerability in Ivy Plugin SECURITY-2924 / CVE-2022-46751 Severity (CVSS): High Affected plugin: ivy Description: Ivy Plugin 2.5 and earlier bundles versions of Apache Ivy vulnerable to CVE-2022-46751. This allows attackers able to control the input file for the "Trigger the build of other projects based on the Ivy dependency management system" post-build step to have Jenkins parse a crafted XML document that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. As of publication of this advisory, there is no fix. Learn why we announce this. CSRF vulnerability in Ivy Plugin SECURITY-3093 / CVE-2023-41938 Severity (CVSS): Medium Affected plugin: ivy Description: Ivy Plugin 2.5 and earlier does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnerability. This vulnerability allows attackers to delete disabled modules. As of publication of this advisory, there is no fix. Learn why we announce this. Disabled permissions can be granted by SSH2 Easy Plugin SECURITY-3064 / CVE-2023-41939 Severity (CVSS): Medium Affected plugin: ssh2easy Description: SSH2 Easy Plugin 1.4 and earlier does not verify that permissions configured to be granted are enabled. This may allow users formerly granted (typically optional permissions, like Overall/Manage) to access functionality they’re no longer entitled to. As a workaround, administrators can save the permission configuration after disabling a permission, as that will overwrite any permission assignments of disabled permissions. The affected features have been removed without replacement in SSH2 Easy Plugin 1.6. Stored XSS vulnerability in TAP Plugin SECURITY-3190 / CVE-2023-41940 Severity (CVSS): High Affected plugin: tap Description: TAP Plugin 2.3 and earlier does not escape TAP file contents. This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control TAP file contents. As of publication of this advisory, there is no fix. Learn why we announce this. Missing permission check in AWS CodeCommit Trigger Plugin allows enumerating credentials IDs SECURITY-3101 (1) / CVE-2023-41941 Severity (CVSS): Medium Affected plugin: aws-codecommit-trigger Description: AWS CodeCommit Trigger Plugin 3.0.12 and earlier does not perform a permission check in an HTTP endpoint. This allows attackers with Overall/Read permission to enumerate credentials IDs of AWS credentials stored in Jenkins. Those can be used as part of an attack to capture the credentials using another vulnerability. As of publication of this advisory, there is no fix. Learn why we announce this. CSRF vulnerability and missing permission check in AWS CodeCommit Trigger Plugin SECURITY-3101 (2) / CVE-2023-41942 (CSRF), CVE-2023-41943 (permission check) Severity (CVSS): Medium Affected plugin: aws-codecommit-trigger Description: AWS CodeCommit Trigger Plugin 3.0.12 and earlier does not perform a permission check in an HTTP endpoint. This allows attackers with Overall/Read permission to clear the SQS queue. Additionally, this endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. As of publication of this advisory, there is no fix. Learn why we announce this. HTML injection vulnerability in AWS CodeCommit Trigger Plugin SECURITY-3102 / CVE-2023-41944 Severity (CVSS): Medium Affected plugin: aws-codecommit-trigger Description: AWS CodeCommit Trigger Plugin 3.0.12 and earlier does not escape the queue name parameter passed to a form validation URL, when rendering an error message. This results in an HTML injection vulnerability. Since Jenkins 2.275 and LTS 2.263.2, a security hardening for form validation responses prevents JavaScript execution, so no scripts can be injected. As of publication of this advisory, there is no fix. Learn why we announce this. Disabled permissions granted by Assembla Auth Plugin SECURITY-3065 / CVE-2023-41945 Severity (CVSS): Medium Affected plugin: assembla-auth Description: Assembla Auth Plugin provides an authorization strategy that defines four levels of access to Jenkins, based on the corresponding permissions in Assembla spaces: ALL, EDIT, VIEW, and NONE. Assembla Auth Plugin 1.14 and earlier does not verify that the permissions it grants are enabled. This results in users with EDIT permissions to be granted Overall/Manage and Overall/SystemRead permissions, even if those permissions are disabled and should not be granted. Additionally, the plugin also grants the deprecated permissions Overall/RunScripts, Overall/UploadPlugins and Overall/ConfigureUpdateCenter to users with EDIT access. These permissions allow arbitrary code execution through various means in Jenkins before 2.222. Additionally, plugins not yet adapted to the changes in Jenkins 2.222 may also provide access to sensitive features to users with these permissions. As of publication of this advisory, there is no fix. Learn why we announce this. CSRF vulnerability and missing permission checks in Frugal Testing Plugin SECURITY-3082 / CVE-2023-41946 (CSRF), CVE-2023-41947 (permission check) Severity (CVSS): Medium Affected plugin: frugal-testing Description: Frugal Testing Plugin 1.1 and earlier does not perform permission checks in several HTTP endpoints. This allows attackers with Overall/Read permission to do the following: Connect to Frugal Testing using attacker-specified username and password. Retrieve test IDs and names from Frugal Testing, if a valid credential corresponds to the attacker-specified username. Additionally, these endpoints do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. As of publication of this advisory, there is no fix. Learn why we announce this. Severity SECURITY-2924: High SECURITY-3018: High SECURITY-3064: Medium SECURITY-3065: Medium SECURITY-3082: Medium SECURITY-3093: Medium SECURITY-3101 (1): Medium SECURITY-3101 (2): Medium SECURITY-3102: Medium SECURITY-3165: Medium SECURITY-3190: High SECURITY-3227: Low SECURITY-3228: Low SECURITY-3233: High SECURITY-3235: High SECURITY-3257: Medium Affected Versions Assembla Auth Plugin up to and including 1.14 AWS CodeCommit Trigger Plugin up to and including 3.0.12 Azure AD Plugin up to and including 396.v86ce29279947 Bitbucket Push and Pull Request Plugin up to and including 2.8.3 Frugal Testing Plugin up to and including 1.1 Google Login Plugin up to and including 1.7 Ivy Plugin up to and including 2.5 Job Configuration History Plugin up to and including 1227.v7a_79fc4dc01f Pipeline Maven Integration Plugin up to and including 1330.v18e473854496 Qualys Container Scanning Connector Plugin up to and including 1.6.2.6 SSH2 Easy Plugin up to and including 1.4 TAP Plugin up to and including 2.3 Fix Azure AD Plugin should be updated to version 397.v907382dd9b_98 or 378.380.v545b_1154b_3fb_ Bitbucket Push and Pull Request Plugin should be updated to version 2.8.4 Google Login Plugin should be updated to version 1.8 Job Configuration History Plugin should be updated to version 1229.v3039470161a_d Pipeline Maven Integration Plugin should be updated to version 1331.v003efa_fd6e81 Qualys Container Scanning Connector Plugin should be updated to version 1.6.2.7 SSH2 Easy Plugin should be updated to version 1.6 These versions include fixes to the vulnerabilities described above. All prior versions are considered to be affected by these vulnerabilities unless otherwise indicated. As of publication of this advisory, no fixes are available for the following plugins: Assembla Auth Plugin AWS CodeCommit Trigger Plugin Frugal Testing Plugin Ivy Plugin TAP Plugin Learn why we announce these issues. Credit The Jenkins project would like to thank the reporters for discovering and reporting these vulnerabilities: Andrea Chiera, CloudBees, Inc. for SECURITY-3190, SECURITY-3233, SECURITY-3235 CC Bomber, Kitri BoB for SECURITY-2924 Kevin Guerroudj, CloudBees, Inc. for SECURITY-3093, SECURITY-3101 (1), SECURITY-3101 (2), SECURITY-3102 Kevin Guerroudj, CloudBees, Inc. and Yaroslav Afenkin, CloudBees, Inc. for SECURITY-3064, SECURITY-3065 Tony Torralba (@atorralba), GitHub Security Lab and Alvaro Muñoz (@pwntester), GitHub Security Lab for SECURITY-3165 Yaroslav Afenkin, CloudBees, Inc. for SECURITY-3018, SECURITY-3082, SECURITY-3227, SECURITY-3228, SECURITY-3257 ========================================================+ CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =======================================================