CloudBees Security Advisory 2023-01-24

This advisory announces vulnerabilities in Jenkins, CloudBees CI and CloudBees Jenkins Platform

Sandbox bypass vulnerability in Script Security Plugin 

SECURITY-3016 / CVE-2023-24422
Severity (CVSS): High
Affected plugin: script-security
Description:

Script Security Plugin provides a sandbox feature that allows low privileged users to define scripts, including Pipelines, that are generally safe to execute. Calls to code defined inside a sandboxed script are intercepted, and various allowlists are checked to determine whether the call is to be allowed.

In Script Security Plugin 1228.vd93135a_2fb_25 and earlier, property assignments performed implicitly by the Groovy language runtime when invoking map constructors were not intercepted by the sandbox.

This vulnerability allows attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

Script Security Plugin 1229.v4880b_b_e905a_6 intercepts property assignments when invoking map constructors.

As part of this fix, map constructors may only be invoked in the sandbox using the new keyword. Attempting to invoke a map constructor using a Groovy cast will fail unconditionally. For example, code such as [key: value] as MyClass or MyClass mc = [key: value] must be converted to use new MyClass(key: value) instead.

CSRF vulnerability in Gerrit Trigger Plugin 

SECURITY-2137 / CVE-2023-24423
Severity (CVSS): Medium
Affected plugin: gerrit-trigger
Description:

Gerrit Trigger Plugin 2.38.0 and earlier does not require POST requests for several HTTP endpoints, resulting in a cross-site request forgery (CSRF) vulnerability.

This vulnerability allows attackers to rebuild previous builds triggered by Gerrit.

Gerrit Trigger Plugin 2.38.1 requires POST requests for the affected HTTP endpoints.

Session fixation vulnerability in OpenId Connect Authentication Plugin 

SECURITY-2978 / CVE-2023-24424
Severity (CVSS): High
Affected plugin: oic-auth
Description:

OpenId Connect Authentication Plugin 2.4 and earlier does not invalidate the existing session on login.

This allows attackers to use social engineering techniques to gain administrator access to Jenkins.

OpenId Connect Authentication Plugin 2.5 invalidates the existing session on login.

Exposure of system-scoped Kubernetes credentials in Kubernetes Credentials Provider Plugin 

SECURITY-3022 / CVE-2023-24425
Severity (CVSS): Medium
Affected plugin: kubernetes-credentials-provider
Description:

Kubernetes Credentials Provider Plugin 1.208.v128ee9800c04 and earlier does not set the appropriate context for Kubernetes credentials lookup, allowing the use of System-scoped credentials otherwise reserved for the global configuration.

This allows attackers with Item/Configure permission to access and potentially capture Kubernetes credentials they are not entitled to.

Kubernetes Credentials Provider Plugin 1.209.v862c6e5fb_1ef defines the appropriate context for Kubernetes credentials lookup.

Session fixation vulnerability in Azure AD Plugin 

SECURITY-2980 / CVE-2023-24426
Severity (CVSS): High
Affected plugin: azure-ad
Description:

Azure AD Plugin 303.va_91ef20ee49f and earlier does not invalidate the existing session on login.

This allows attackers to use social engineering techniques to gain administrator access to Jenkins.

Azure AD Plugin 306.va_7083923fd50 invalidates the existing session on login.

Session fixation vulnerability in Bitbucket OAuth Plugin 

SECURITY-2982 / CVE-2023-24427
Severity (CVSS): High
Affected plugin: bitbucket-oauth
Description:

Bitbucket OAuth Plugin 0.12 and earlier does not invalidate the existing session on login.

This allows attackers to use social engineering techniques to gain administrator access to Jenkins.

Bitbucket OAuth Plugin 0.13 invalidates the existing session on login.

CSRF vulnerability in Bitbucket OAuth Plugin 

SECURITY-2981 / CVE-2023-24428
Severity (CVSS): Medium
Affected plugin: bitbucket-oauth
Description:

Bitbucket OAuth Plugin 0.12 and earlier does not implement a state parameter in its OAuth flow, a unique and non-guessable value associated with each authentication request.

This vulnerability allows attackers to trick users into logging in to the attacker’s account.

Bitbucket OAuth Plugin 0.13 implements a state parameter in its OAuth flow.

Agent-to-controller security bypass in Semantic Versioning Plugin 

SECURITY-2973 (1) / CVE-2023-24429
Severity (CVSS): High
Affected plugin: semantic-versioning-plugin
Description:

Semantic Versioning Plugin defines a controller/agent message that processes a given file as XML and its XML parser is not configured to prevent XML external entity (XXE) attacks.

Semantic Versioning Plugin 1.14 and earlier does not restrict execution of the controller/agent message to agents, and implements no limitations about the file path that can be parsed. This allows attackers able to control agent processes to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

This is due to an incomplete fix of SECURITY-2124.

This vulnerability is only exploitable in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier. See the LTS upgrade guide.

Semantic Versioning Plugin 1.15 does not allow the affected controller/agent message to be submitted by agents for execution on the controller.

XXE vulnerability on agents in Semantic Versioning Plugin 

SECURITY-2973 (2) / CVE-2023-24430
Severity (CVSS): Medium
Affected plugin: semantic-versioning-plugin
Description:

Semantic Versioning Plugin 1.14 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers able to control the contents of the version file for the 'Determine Semantic Version' build step to have agent processes parse a crafted file that uses external entities for extraction of secrets from the Jenkins agent or server-side request forgery.

Because Jenkins agent processes usually execute build tools whose input (source code, build scripts, etc.) is controlled externally, this vulnerability only has a real impact in very narrow circumstances: when attackers can control XML files, but are unable to change build steps, Jenkinsfiles, test code that gets executed on the agents, or similar.

Semantic Versioning Plugin 1.15 disables external entity resolution for its XML parser.

Missing permission checks in Orka by MacStadium Plugin allow enumerating credentials IDs 

SECURITY-2772 (1) / CVE-2023-24431
Severity (CVSS): Medium
Affected plugin: macstadium-orka
Description:

Orka by MacStadium Plugin 1.31 and earlier does not perform permission checks in several HTTP endpoints.

This allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins. Those can be used as part of an attack to capture the credentials using another vulnerability.

An enumeration of credentials IDs in Orka by MacStadium Plugin 1.32 requires Overall/Administer permission.

CSRF vulnerability and missing permission checks in Orka by MacStadium Plugin allow capturing credentials 

SECURITY-2772 (2) / CVE-2023-24432 (CSRF), CVE-2023-24433 (missing permission check)
Severity (CVSS): Medium
Affected plugin: macstadium-orka
Description:

Orka by MacStadium Plugin 1.31 and earlier does not perform permission checks in several HTTP endpoints.

This allows attackers with Overall/Read permission to connect to an attacker-specified HTTP server using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Additionally, these HTTP endpoints do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

Orka by MacStadium Plugin 1.32 requires POST requests and Overall/Administer permission for the affected HTTP endpoints.

Missing permission check in GitHub Pull Request Builder Plugin allows enumerating credentials IDs 

SECURITY-2789 (1) / CVE-2023-24436
Severity (CVSS): Medium
Affected plugin: ghprb
Description:

GitHub Pull Request Builder Plugin 1.42.2 and earlier does not perform a permission check in an HTTP endpoint.

This allows attackers with Overall/Read permission to enumerate credentials IDs of 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 checks in GitHub Pull Request Builder Plugin 

SECURITY-2789 (2) / CVE-2023-24434 (CSRF), CVE-2023-24435 (missing permission check)
Severity (CVSS): Medium
Affected plugin: ghprb
Description:

GitHub Pull Request Builder Plugin 1.42.2 and earlier does not perform permission checks in methods implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Additionally, these form validation methods 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.

CSRF vulnerability and missing permission checks in JIRA Pipeline Steps Plugin 

SECURITY-2786 / CVE-2023-24437 (CSRF), CVE-2023-24438 (missing permission check)
Severity (CVSS): Medium
Affected plugin: jira-steps
Description:

JIRA Pipeline Steps Plugin 2.0.165.v8846cf59f3db and earlier does not perform permission checks in methods implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Additionally, these form validation methods 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.

Keys stored in plain text by JIRA Pipeline Steps Plugin 

SECURITY-2774 / CVE-2023-24439 (storage), CVE-2023-24440 (masking)
Severity (CVSS): Low
Affected plugin: jira-steps
Description:

JIRA Pipeline Steps Plugin 2.0.165.v8846cf59f3db and earlier stores the private key unencrypted in its global configuration file org.thoughtslive.jenkins.plugins.jira.JiraStepsConfig.xml on the Jenkins controller as part of its configuration.

This key can be viewed by users with access to the Jenkins controller file system.

Additionally, the global configuration form does not mask the API key, increasing the potential for attackers to observe and capture it.

As of publication of this advisory, there is no fix. Learn why we announce this.

XXE vulnerability on agents in MSTest Plugin 

SECURITY-2292 / CVE-2023-24441
Severity (CVSS): Medium
Affected plugin: mstest
Description:

MSTest Plugin 1.0.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers able to control the contents of the report file for the 'Publish MSTest test result report' post-build step to have agent processes parse a crafted file that uses external entities for extraction of secrets from the Jenkins agent or server-side request forgery.

Because Jenkins agent processes usually execute build tools whose input (source code, build scripts, etc.) is controlled externally, this vulnerability only has a real impact in very narrow circumstances: when attackers can control XML files, but are unable to change build steps, Jenkinsfiles, test code that gets executed on the agents, or similar.

As of publication of this advisory, there is no fix. Learn why we announce this.

Credentials stored in plain text by GitHub Pull Request Coverage Status Plugin 

SECURITY-2767 / CVE-2023-24442
Severity (CVSS): Low
Affected plugin: github-pr-coverage-status
Description:

GitHub Pull Request Coverage Status Plugin 2.2.0 and earlier stores the GitHub Personal Access Token, Sonar access token and Sonar password unencrypted in its global configuration file com.github.terma.jenkins.githubprcoveragestatus.Configuration.xml on the Jenkins controller as part of its configuration.

These credentials can be viewed by users with access to the Jenkins controller file system.

As of publication of this advisory, there is no fix. Learn why we announce this.

Session fixation vulnerability in Keycloak Authentication Plugin 

SECURITY-2987 / CVE-2023-24456
Severity (CVSS): High
Affected plugin: keycloak
Description:

Keycloak Authentication Plugin 2.3.0 and earlier does not invalidate the existing session on login.

This allows attackers to use social engineering techniques to gain administrator access to Jenkins.

As of publication of this advisory, there is no fix. Learn why we announce this.

CSRF vulnerability in Keycloak Authentication Plugin 

SECURITY-2986 / CVE-2023-24457
Severity (CVSS): Medium
Affected plugin: keycloak
Description:

Keycloak Authentication Plugin 2.3.0 and earlier does not implement a state parameter in its OAuth flow, a unique and non-guessable value associated with each authentication request.

This vulnerability allows attackers to trick users into logging in to the attacker’s account.

As of publication of this advisory, there is no fix. Learn why we announce this.

XXE vulnerability in TestComplete support Plugin 

SECURITY-2741 / CVE-2023-24443
Severity (CVSS): High
Affected plugin: TestComplete
Description:

TestComplete support Plugin 2.8.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers able to control the zip archive input file for the 'TestComplete Test' build step to have Jenkins parse a crafted file 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.

Session fixation vulnerability in OpenID Plugin 

SECURITY-2996 / CVE-2023-24444
Severity (CVSS): High
Affected plugin: openid
Description:

OpenID Plugin 2.4 and earlier does not invalidate the existing session on login.

This allows attackers to use social engineering techniques to gain administrator access to Jenkins.

As of publication of this advisory, there is no fix. Learn why we announce this.

Open redirect vulnerability in OpenID Plugin 

SECURITY-2997 / CVE-2023-24445
Severity (CVSS): Medium
Affected plugin: openid
Description:

OpenID Plugin 2.4 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins.

This allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site after successful authentication.

As of publication of this advisory, there is no fix. Learn why we announce this.

CSRF vulnerability in OpenID Plugin 

SECURITY-2995 / CVE-2023-24446
Severity (CVSS): Medium
Affected plugin: openid
Description:

OpenID Plugin 2.4 and earlier does not implement a state parameter in its OAuth flow, a unique and non-guessable value associated with each authentication request.

This vulnerability allows attackers to trick users into logging in to the attacker’s account.

As of publication of this advisory, there is no fix. Learn why we announce this.

CSRF vulnerability and missing permission check in RabbitMQ Consumer Plugin 

SECURITY-2778 / CVE-2023-24447 (CSRF), CVE-2023-24448 (missing permission check)
Severity (CVSS): Medium
Affected plugin: rabbitmq-consumer
Description:

RabbitMQ Consumer Plugin 2.8 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified AMQP server using attacker-specified username and password.

Additionally, this form validation method 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.

Path traversal vulnerability in PWauth Security Realm Plugin 

SECURITY-2985 / CVE-2023-24449
Severity (CVSS): Medium
Affected plugin: pwauth
Description:

PWauth Security Realm Plugin 0.4 and earlier does not restrict the names of files in methods implementing form validation.

This allows attackers with Overall/Read permission to check for the existence of an attacker-specified file path on the Jenkins controller file system.

As of publication of this advisory, there is no fix. Learn why we announce this.

Passwords stored in plain text by view-cloner Plugin 

SECURITY-2787 / CVE-2023-24450
Severity (CVSS): Medium
Affected plugin: view-cloner
Description:

view-cloner Plugin 1.1 and earlier stores passwords unencrypted in job config.xml files on the Jenkins controller as part of its configuration.

These passwords can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.

As of publication of this advisory, there is no fix. Learn why we announce this.

Missing permission checks in Cisco Spark Notifier Plugin allow enumerating credentials IDs 

SECURITY-2803 / CVE-2023-24451
Severity (CVSS): Medium
Affected plugin: cisco-spark-notifier
Description:

Cisco Spark Notifier Plugin 1.1.1 and earlier does not perform permission checks in several HTTP endpoints.

This allows attackers with Overall/Read permission to enumerate credentials IDs of 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 BearyChat Plugin 

SECURITY-2745 / CVE-2023-24458 (CSRF), CVE-2023-24459 (missing permission check)
Severity (CVSS): Medium
Affected plugin: bearychat
Description:

BearyChat Plugin 3.0.2 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL.

Additionally, this form validation method 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.

CSRF vulnerability and missing permission check in TestQuality Updater Plugin 

SECURITY-2800 / CVE-2023-24452 (CSRF), CVE-2023-24453 (missing permission check)
Severity (CVSS): Medium
Affected plugin: testquality-updater
Description:

TestQuality Updater Plugin 1.3 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified username and password.

Additionally, this form validation method 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.

Password stored in plain text by TestQuality Updater Plugin 

SECURITY-2091 / CVE-2023-24454
Severity (CVSS): Low
Affected plugin: testquality-updater
Description:

TestQuality Updater Plugin 1.3 and earlier stores the TestQuality Updater password unencrypted in its global configuration file com.testquality.jenkins.TestQualityNotifier.xml on the Jenkins controller as part of its configuration.

This password can be viewed by users with access to the Jenkins controller file system.

As of publication of this advisory, there is no fix. Learn why we announce this.

Path traversal vulnerability in visualexpert Plugin 

SECURITY-2709 / CVE-2023-24455
Severity (CVSS): Medium
Affected plugin: visualexpert
Description:

visualexpert Plugin 1.3 and earlier does not restrict the names of files in methods implementing form validation.

This allows attackers with Item/Configure permission to check for the existence of an attacker-specified file path on the Jenkins controller file system.

As of publication of this advisory, there is no fix. Learn why we announce this.

Severity


Fix

  • CloudBees Traditional Platforms should be upgraded to 2.375.2.3

  • CloudBees Cloud Platforms should be upgraded to 2.375.2.3

  • CloudBees Jenkins Platform (fixed train, CJP Operations Center and CJP Client Master (2.346.x.0.z)) should be upgraded to 2.346.40.0.7