Nextcloud Desktop Client prior to 3.1.3 is vulnerable to resource injection by way of missing validation of URLs, allowing a malicious server to execute remote commands. User interaction is needed for exploitation.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Nextcloud Desktop Client prior to 3.1.3 is vulnerable to resource injection by way of missing validation     of URLs, allowing a malicious server to execute remote commands. User interaction is needed for     exploitation. (CVE-2021-22879)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote host is affected by the vulnerability described in GLSA-202105-37 (Nextcloud Desktop Client: User-assisted execution of arbitrary code)

    It was discovered that Nextcloud Desktop Client did not validate URLs.
  Impact :

    A remote attacker could entice a user to connect to a malicious       Nextcloud server to cause the execution of arbitrary commands with the       privileges of the user running the Nextcloud Desktop Client application.
  Workaround :

    There is no known workaround at this time.

This update for nextcloud-desktop fixes the following issues :

nextcloud-desktop was updated to 3.1.3 :

  - desktop#2884 [stable-3.1] Add support for Hirsute

  - desktop#2920 [stable-3.1] Validate sensitive URLs to     onle allow http(s) schemes.

  - desktop#2926 [stable-3.1] Validate the providers ssl     certificate

  - desktop#2939 Bump release to 3.1.3

This also fix security issues :

  - (boo#1184770, CVE-2021-22879, NC-SA-2021-008 , CWE-99)

    Nextcloud Desktop Client prior to 3.1.3 is vulnerable to     resource injection by way of missing validation of URLs,     allowing a malicious server to execute remote commands.
    User interaction is needed for exploitation.

ID	Name	Product	Family	Severity
259774	Linux Distros Unpatched Vulnerability : CVE-2021-22879	Nessus	Misc.	high
157043	GLSA-202105-37 : Nextcloud Desktop Client: User-assisted execution of arbitrary code	Nessus	Gentoo Local Security Checks	high
149627	openSUSE Security Update : nextcloud-desktop (openSUSE-2021-577)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2021-22879

high

Tenable Plugins

high

high

high