Jenkins External Monitor Job Type Plugin 206.v9a_94ff0b_4a_10 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers with Item/Build permission to have Jenkins parse a crafted HTTP request with XML data that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

External Monitor Job Type Plugin 207.v98a_a_37a_85525 disables external entity resolution for its XML parser.

1.  GitHub Advisory Database
2.  GitHub Reviewed
3.  CVE-2023-37942

**Jenkins External Monitor Job Type Plugin XML external entity vulnerability**

High severity GitHub Reviewed Published Jul 12, 2023 to the GitHub Advisory Database • Updated Jul 12, 2023

**Package**

maven org.jenkins-ci.plugins:external-monitor-job (Maven)

**Affected versions**

< 207.v98a

**Patched versions**

207.v98a

Jenkins External Monitor Job Type Plugin 206.v9a\_94ff0b\_4a\_10 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers with Item/Build permission to have Jenkins parse a crafted HTTP request with XML data that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

External Monitor Job Type Plugin 207.v98a\_a\_37a\_85525 disables external entity resolution for its XML parser.

**References**

*   https://nvd.nist.gov/vuln/detail/CVE-2023-37942
*   https://www.jenkins.io/security/advisory/2023-07-12/#SECURITY-3133

Published to the GitHub Advisory Database

Jul 12, 2023

Last updated

Jul 12, 2023

GHSA-g4c3-4f3v-84x8: Jenkins External Monitor Job Type Plugin XML external entity vulnerability

Jenkins mabl Plugin 0.0.46 and earlier does not set the appropriate context for credentials lookup, allowing attackers with Item/Configure permission to access and capture credentials they are not entitled to.

This advisory announces vulnerabilities in the following Jenkins deliverables:

*   Active Directory Plugin
*   Assembla Auth Plugin
*   Benchmark Evaluator Plugin
*   Datadog Plugin
*   ElasticBox CI Plugin
*   External Monitor Job Type Plugin
*   mabl Plugin
*   MathWorks Polyspace Plugin
*   OpenShift Login Plugin
*   Oracle Cloud Infrastructure Compute Plugin
*   Orka by MacStadium Plugin
*   Pipeline restFul API Plugin
*   Rebuilder Plugin
*   SAML Single Sign On(SSO) Plugin
*   Sumologic Publisher Plugin
*   Test Results Aggregator Plugin

**Descriptions****XXE vulnerability in External Monitor Job Type Plugin**

**SECURITY-3133 / CVE-2023-37942**  
**Severity (CVSS):** High  
**Affected plugin: external-monitor-job**  
**Description:**

External Monitor Job Type Plugin 206.v9a\_94ff0b\_4a\_10 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers with Item/Build permission to have Jenkins parse a crafted HTTP request with XML data that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

External Monitor Job Type Plugin 207.v98a\_a\_37a\_85525 disables external entity resolution for its XML parser.

**Password transmitted in plain text by Active Directory Plugin**

**SECURITY-3059 / CVE-2023-37943**  
**Severity (CVSS):** Low  
**Affected plugin: active-directory**  
**Description:**

Active Directory Plugin allows testing a new, unsaved configuration by performing a connection test (the button labeled "Test Domain").

Active Directory Plugin 2.30 and earlier ignores the "Require TLS" and "StartTls" options and always performs the connection test to Active directory unencrypted. This allows attackers able to capture network traffic between the Jenkins controller and Active Directory servers to obtain Active Directory credentials.

This only affects the connection test. Connections established during the login process are encrypted if the corresponding TLS option is enabled.

Active Directory Plugin 2.30.1 considers the "Require TLS" and "StartTls" options for connection tests.

**Missing permission check in Datadog Plugin allows capturing credentials**

**SECURITY-3130 / CVE-2023-37944**  
**Severity (CVSS):** Medium  
**Affected plugin: datadog**  
**Description:**

Datadog Plugin 5.4.1 and earlier does not perform a permission check in an HTTP endpoint.

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.

Datadog Plugin 5.4.2 requires Overall/Administer permission to access the affected HTTP endpoint.

**Missing permission check in SAML Single Sign On(SSO) Plugin**

**SECURITY-3164 / CVE-2023-37945**  
**Severity (CVSS):** Medium  
**Affected plugin: miniorange-saml-sp**  
**Description:**

SAML Single Sign On(SSO) Plugin 2.3.0 and earlier does not perform a permission check in an HTTP endpoint.

This allows attackers with Overall/Read permission to download a string representation of the current security realm (Java Object#toString()), which potentially includes sensitive information.

SAML Single Sign On(SSO) Plugin 2.3.1 requires Overall/Administer permission to access the affected HTTP endpoint, and only allows downloading a string representation if the current security realm is this plugin’s.

**Session fixation vulnerability in OpenShift Login Plugin**

**SECURITY-2998 / CVE-2023-37946**  
**Severity (CVSS):** High  
**Affected plugin: openshift-login**  
**Description:**

OpenShift Login Plugin 1.1.0.227.v27e08dfb\_1a\_20 and earlier does not invalidate the existing session on login.

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

OpenShift Login Plugin 1.1.0.230.v5d7030b\_f5432 invalidates the existing session on login.

**Open redirect vulnerability in OpenShift Login Plugin**

**SECURITY-2999 / CVE-2023-37947**  
**Severity (CVSS):** Medium  
**Affected plugin: openshift-login**  
**Description:**

OpenShift Login Plugin 1.1.0.227.v27e08dfb\_1a\_20 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.

OpenShift Login Plugin 1.1.0.230.v5d7030b\_f5432 only redirects to relative (Jenkins) URLs.

**Missing SSH host key validation in Oracle Cloud Infrastructure Compute Plugin**

**SECURITY-3044 / CVE-2023-37948**  
**Severity (CVSS):** Medium  
**Affected plugin: oracle-cloud-infrastructure-compute**  
**Description:**

Oracle Cloud Infrastructure Compute Plugin 1.0.16 and earlier does not perform SSH host key validation when connecting to OCI clouds.

This lack of validation could be abused using a man-in-the-middle attack to intercept these connections to OCI clouds.

Oracle Cloud Infrastructure Compute Plugin 1.0.17 provides strategies for performing host key validation for administrators to select the one that meets their security needs.

The Jenkins security team has been unable to confirm the exploitability and resolution of this vulnerability.

**Missing permission check in Orka by MacStadium Plugin allows capturing credentials**

**SECURITY-3128 / CVE-2023-37949**  
**Severity (CVSS):** Medium  
**Affected plugin: macstadium-orka**  
**Description:**

Orka by MacStadium Plugin 1.33 and earlier does not perform a permission check in an HTTP endpoint.

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.

Orka by MacStadium Plugin 1.34 requires Overall/Administer permission to access the affected HTTP endpoint.

**Missing permission check in mabl Plugin allows enumerating credentials IDs**

**SECURITY-3137 (1) / CVE-2023-37950**  
**Severity (CVSS):** Medium  
**Affected plugin: mabl-integration**  
**Description:**

mabl Plugin 0.0.46 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.

An enumeration of credentials IDs in mabl Plugin 0.0.47 requires the appropriate permissions.

**Exposure of system-scoped credentials in mabl Plugin**

**SECURITY-3137 (2) / CVE-2023-37951**  
**Severity (CVSS):** Medium  
**Affected plugin: mabl-integration**  
**Description:**

mabl Plugin 0.0.46 and earlier does not set the appropriate context for 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 capture credentials they are not entitled to.

mabl Plugin 0.0.47 defines the appropriate context for credentials lookup.

**CSRF vulnerability and missing permission checks in mabl Plugin allow capturing credentials**

**SECURITY-3127 / CVE-2023-37952 (CSRF), CVE-2023-37953 (missing permission check)**  
**Severity (CVSS):** High  
**Affected plugin: mabl-integration**  
**Description:**

mabl Plugin 0.0.46 and earlier does not perform permission checks in several HTTP endpoints.

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

mabl Plugin 0.0.47 requires POST requests and the appropriate permissions for the affected HTTP endpoints.

**CSRF vulnerability in Rebuilder Plugin**

**SECURITY-3033 / CVE-2023-37954**  
**Severity (CVSS):** Medium  
**Affected plugin: rebuild**  
**Description:**

Rebuilder Plugin 320.v5a\_0933a\_e7d61 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 rebuild a previous build.

**CSRF vulnerability and missing permission check in Test Results Aggregator Plugin**

**SECURITY-3122 / CVE-2023-37955 (CSRF), CVE-2023-37956 (missing permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: test-results-aggregator**  
**Description:**

Test Results Aggregator Plugin 1.2.13 and earlier does not perform a permission check in an HTTP endpoint 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 HTTP endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

**CSRF vulnerability in Pipeline restFul API Plugin**

**SECURITY-3126 / CVE-2023-37957**  
**Severity (CVSS):** High  
**Affected plugin: pipeline-restful-api**  
**Description:**

Pipeline restFul API Plugin 0.11 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 have Jenkins connect to an attacker-specified URL, capturing a newly generated JCLI token that allows impersonating the victim.

**CSRF vulnerability and missing permission checks in Sumologic Publisher Plugin**

**SECURITY-3117 / CVE-2023-37958 (CSRF), CVE-2023-37959 (missing permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: sumologic-publisher**  
**Description:**

Sumologic Publisher Plugin 2.2.1 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.

**Arbitrary file read vulnerability in MathWorks Polyspace Plugin**

**SECURITY-3124 / CVE-2023-37960**  
**Severity (CVSS):** Medium  
**Affected plugin: mathworks-polyspace**  
**Description:**

MathWorks Polyspace Plugin 1.0.5 and earlier does not restrict the path of the attached files in Polyspace Notification post-build step.

This allows attackers with Item/Configure permission to send emails with arbitrary files from the Jenkins controller file system.

**CSRF vulnerability in Assembla Auth Plugin**

**SECURITY-2988 / CVE-2023-37961**  
**Severity (CVSS):** Medium  
**Affected plugin: assembla-auth**  
**Description:**

Assembla Auth Plugin 1.14 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.

**CSRF vulnerability and missing permission checks in Benchmark Evaluator Plugin**

**SECURITY-3119 / CVE-2023-37962 (CSRF), CVE-2023-37963 (missing permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: benchmark-evaluator**  
**Description:**

Benchmark Evaluator Plugin 1.0.1 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 and to check for the existence of directories, .csv, and .ycsb files on the Jenkins controller file system.

Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

**CSRF vulnerability and missing permission checks in ElasticBox CI Plugin allow capturing credentials**

**SECURITY-3131 / CVE-2023-37964 (CSRF), CVE-2023-37965 (missing permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: elasticbox**  
**Description:**

ElasticBox CI Plugin 5.0.1 and earlier does not perform permission checks in several HTTP endpoints.

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

**Severity**

*   SECURITY-2988: Medium
*   SECURITY-2998: High
*   SECURITY-2999: Medium
*   SECURITY-3033: Medium
*   SECURITY-3044: Medium
*   SECURITY-3059: Low
*   SECURITY-3117: Medium
*   SECURITY-3119: Medium
*   SECURITY-3122: Medium
*   SECURITY-3124: Medium
*   SECURITY-3126: High
*   SECURITY-3127: High
*   SECURITY-3128: Medium
*   SECURITY-3130: Medium
*   SECURITY-3131: Medium
*   SECURITY-3133: High
*   SECURITY-3137 (1): Medium
*   SECURITY-3137 (2): Medium
*   SECURITY-3164: Medium

**Affected Versions**

*   **Active Directory Plugin** up to and including 2.30
*   **Assembla Auth Plugin** up to and including 1.14
*   **Benchmark Evaluator Plugin** up to and including 1.0.1
*   **Datadog Plugin** up to and including 5.4.1
*   **ElasticBox CI Plugin** up to and including 5.0.1
*   **External Monitor Job Type Plugin** up to and including 206.v9a\_94ff0b\_4a\_10
*   **mabl Plugin** up to and including 0.0.46
*   **MathWorks Polyspace Plugin** up to and including 1.0.5
*   **OpenShift Login Plugin** up to and including 1.1.0.227.v27e08dfb\_1a\_20
*   **Oracle Cloud Infrastructure Compute Plugin** up to and including 1.0.16
*   **Orka by MacStadium Plugin** up to and including 1.33
*   **Pipeline restFul API Plugin** up to and including 0.11
*   **Rebuilder Plugin** up to and including 320.v5a\_0933a\_e7d61
*   **SAML Single Sign On(SSO) Plugin** up to and including 2.3.0
*   **Sumologic Publisher Plugin** up to and including 2.2.1
*   **Test Results Aggregator Plugin** up to and including 1.2.13

**Fix**

*   **Active Directory Plugin** should be updated to version 2.30.1
*   **Datadog Plugin** should be updated to version 5.4.2
*   **External Monitor Job Type Plugin** should be updated to version 207.v98a\_a\_37a\_85525
*   **mabl Plugin** should be updated to version 0.0.47
*   **OpenShift Login Plugin** should be updated to version 1.1.0.230.v5d7030b\_f5432
*   **Oracle Cloud Infrastructure Compute Plugin** should be updated to version 1.0.17
*   **Orka by MacStadium Plugin** should be updated to version 1.34
*   **SAML Single Sign On(SSO) Plugin** should be updated to version 2.3.1

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
*   Benchmark Evaluator Plugin
*   ElasticBox CI Plugin
*   MathWorks Polyspace Plugin
*   Pipeline restFul API Plugin
*   Rebuilder Plugin
*   Sumologic Publisher Plugin
*   Test Results Aggregator Plugin

Learn why we announce these issues.

**Credit**

The Jenkins project would like to thank the reporters for discovering and reporting these vulnerabilities:

*   **Alvaro Muñoz (@pwntester), GitHub Security Lab** for SECURITY-3117, SECURITY-3119, SECURITY-3122, SECURITY-3126, SECURITY-3127, SECURITY-3128, SECURITY-3130, SECURITY-3131
*   **Daniel Beck, CloudBees, Inc.** for SECURITY-3164
*   **Kevin Guerroudj, CloudBees, Inc.** for SECURITY-2988, SECURITY-3033, SECURITY-3137 (1)
*   **Kevin Guerroudj, CloudBees, Inc. and Yaroslav Afenkin, CloudBees, Inc.** for SECURITY-2998, SECURITY-2999
*   **Tony Torralba (@atorralba), GitHub Security Lab** for SECURITY-3124, SECURITY-3133
*   **Yaroslav Afenkin, CloudBees, Inc.** for SECURITY-3044, SECURITY-3137 (2)

CVE-2023-37951: Jenkins Security Advisory 2023-07-12

A missing permission check in Jenkins Datadog Plugin 5.4.1 and earlier 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.

CVE-2023-37944: Jenkins Security Advisory 2023-07-12

Jenkins MathWorks Polyspace Plugin 1.0.5 and earlier allows attackers with Item/Configure permission to send emails with arbitrary files from the Jenkins controller file systems.

CVE-2023-37960: Jenkins Security Advisory 2023-07-12

A missing permission check in Jenkins Test Results Aggregator Plugin 1.2.13 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials.

CVE-2023-37956: Jenkins Security Advisory 2023-07-12

A cross-site request forgery (CSRF) vulnerability in Jenkins Rebuilder Plugin 320.v5a_0933a_e7d61 and earlier allows attackers to rebuild a previous build.

CVE-2023-37954: Jenkins Security Advisory 2023-07-12

A missing permission check in Jenkins mabl Plugin 0.0.46 and earlier 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.

CVE-2023-37953: Jenkins Security Advisory 2023-07-12

A missing permission check in Jenkins SAML Single Sign On(SSO) Plugin 2.1.0 through 2.3.0 (both inclusive) allows attackers with Overall/Read permission to download a string representation of the current security realm.

CVE-2023-37945: Jenkins Security Advisory 2023-07-12

A cross-site request forgery (CSRF) vulnerability in Jenkins Pipeline restFul API Plugin 0.11 and earlier allows attackers to connect to an attacker-specified URL, capturing a newly generated JCLI token.

CVE-2023-37957: Jenkins Security Advisory 2023-07-12

A cross-site request forgery (CSRF) vulnerability in Jenkins Assembla Auth Plugin 1.14 and earlier allows attackers to trick users into logging in to the attacker's account.

Tag

#ssrf