ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.

The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5340-2 advisory.

    USN-5340-1 fixed several vulnerabilities in CKEditor. This update provides the fixes for CVE-2018-9861,     CVE-2020-9281, CVE-2021-32809, CVE-2021-33829 and CVE-2021-37695 for Ubuntu 16.04 ESM.



Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5340-1 advisory.

    Kyaw Min Thein discovered that CKEditor incorrectly handled certain inputs. An attacker could possibly use     this issue to execute arbitrary code. This issue only affects Ubuntu 18.04 LTS. (CVE-2018-9861)

    Micha Bentkowski discovered that CKEditor incorrectly handled certain inputs. An attacker could possibly     use this issue to execute arbitrary code. This issue only affects Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
    (CVE-2020-9281)

    Anton Subbotin discovered that CKEditor incorrectly handled certain inputs. An attacker could possibly use     this issue to execute arbitrary code. This issue only affects Ubuntu 21.10. (CVE-2021-32808)

    Anton Subbotin discovered that CKEditor incorrectly handled certain inputs. An attacker could possibly use     this issue to inject arbitrary code. (CVE-2021-32809)

    Or Sahar discovered that CKEditor incorrectly handled certain inputs. An attacker could possibly use this     issue to execute arbitrary code. This issue only affects Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
    (CVE-2021-33829)

    Mika Kulmala discovered that CKEditor incorrectly handled certain inputs. An attacker could possibly use     this issue to execute arbitrary code. (CVE-2021-37695)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its self-reported version, the instance of Drupal running on the remote web server is 8.9.x prior to 8.9.18, 9.1.x prior to 9.1.12, or 9.2.x prior to 9.2.4. It is, therefore, affected by multiple vulnerabilities due to its usage of a third party component, CKEditor, for WYSIWYG editing:

 - A vulnerability was discovered in CKEditor 4 Fake Objects package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. (CVE-2021-37695)

 - A vulnerability was discovered in the clipboard Widget plugin if used alongside the undo feature. The vulnerability allows a user to abuse undo functionality using malformed widget HTML, which could result in executing JavaScript code. (CVE-2021-32808)

 - A vulnerability was discovered in CKEditor 4 Clipboard package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. (CVE-2021-32809)

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its self-reported version, the instance of Drupal running on the remote web server is 8.9.x prior to 8.9.18, 9.1.x prior to 9.1.12, or 9.2.x prior to 9.2.4. It is, therefore, affected by a multiple vulnerabilities due to its usage of a third party component, CKEditor, for WYSIWYG editing:

  - A vulnerability was discovered in CKEditor 4 Fake Objects package. The vulnerability allowed to inject     malformed Fake Objects HTML, which could result in executing JavaScript code. (CVE-2021-37695)

  - A vulnerability was discovered in the clipboard Widget plugin if used alongside the undo feature. The     vulnerability allows a user to abuse undo functionality using malformed widget HTML, which could result     in executing JavaScript code. (CVE-2021-32808)

  - A vulnerability was discovered in CKEditor 4 Clipboard package. The vulnerability allowed to abuse paste     functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. (CVE-2021-32809)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
183711	Ubuntu 16.04 ESM : CKEditor vulnerabilities (USN-5340-2)	Nessus	Ubuntu Local Security Checks	medium
159137	Ubuntu 18.04 LTS / 20.04 LTS : CKEditor vulnerabilities (USN-5340-1)	Nessus	Ubuntu Local Security Checks	medium
112947	Drupal 8.9.x < 8.9.18 Third-Party Library Vulnerability	Web App Scanning	Component Vulnerability	medium
112946	Drupal 9.1.x < 9.1.12 Third-Party Library Vulnerability	Web App Scanning	Component Vulnerability	medium
112945	Drupal 9.2.x < 9.2.4 Third-Party Library Vulnerability	Web App Scanning	Component Vulnerability	medium
152533	Drupal 8.9.x < 8.9.18 / 9.1.x < 9.1.12 / 9.2.x < 9.2.4 Multiple Vulnerabilities (SA-CORE-2021-005)	Nessus	CGI abuses	medium

Detections

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CVE-2021-32809

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Tenable Plugins

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