As the BSI currently reports, vulnerabilities have been identified for ownCloud. You can read a description of the security vulnerabilities and a list of the affected operating systems and products here.
The Federal Office for Security in Information Technology (BSI) published a security advisory for ownCloud on April 18, 2024. Several vulnerabilities have been discovered in the application of this software that can be exploited by attackers. The operating systems Android, UNIX and Windows as well as the ownCloud product ownCloud are affected by the security gap.
The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: ownCloud Security Advisory (As of April 18, 2024). Other useful resources are listed later in this article.
Multiple vulnerabilities reported for ownCloud – Risk: medium
Risk level: 4 (medium)
CVSS Base Score: 7,5
CVSS Temporal Score: 6,5
Remoteangriff: Ja
The Common Vulnerability Scoring System (CVSS) is used to assess the vulnerability of computer systems. The CVSS standard makes it possible to compare potential or actual security vulnerabilities based on various criteria in order to better prioritize countermeasures. The attributes “none”, “low”, “medium”, “high” and “critical” are used to determine the severity levels of a vulnerability. The Base Score evaluates the requirements for an attack (including authentication, complexity, privileges, user interaction) and its consequences. With the temporal score, framework conditions that can change over time are taken into account in the evaluation. The risk of the vulnerability discussed here is classified as “medium” according to the CVSS with a base score of 7.5.
ownCloud Bug: Vulnerabilities and CVE numbers
ownCloud is an on-premise file sharing and collaboration platform.
A remote attacker could exploit multiple vulnerabilities in ownCloud to create a denial of service condition or bypass security measures.
The vulnerabilities were classified using the CVE designation system (Common Vulnerabilities and Exposures) by their individual serial numbers CVE-2024-26320, CVE-2024-26321, CVE-2024-26322, CVE-2024-26325 und CVE-2024-26326.
Systems affected by the ownCloud security vulnerability at a glance
Operating systems
Android, UNIX, Windows
Products
ownCloud ownCloud ownCloud ownCloud ownCloud ownCloud ownCloud ownCloud Infinite Scale ownCloud ownCloud Infinite Scale ownCloud ownCloud ownCloud ownCloud ownCloud ownCloud ownCloud ownCloud ownCloud ownCloud
General measures for dealing with IT vulnerabilities
Users of the affected systems should keep them up to date. When security gaps become known, manufacturers are required to fix them as quickly as possible by developing a patch or a workaround. If security patches are available, install them promptly. For information, consult the sources listed in the next section. These often contain further information about the latest version of the software in question as well as the availability of security patches or information about workarounds. If you have any further questions or uncertainties, please contact your responsible administrator. IT security managers should regularly check the sources mentioned to see whether a new security update is available.
Manufacturer information on updates, patches and workarounds
Here you will find further links with information about bug reports, security fixes and workarounds.
ownCloud Security Advisory vom 2024-04-18 (18.04.2024)
For more information, see:
ownCloud Security Advisory vom 2024-04-18 (18.04.2024)
For more information, see:
ownCloud Security Advisory vom 2024-04-18 (18.04.2024)
For more information, see:
ownCloud Security Advisory vom 2024-04-18 (18.04.2024)
For more information, see:
ownCloud Security Advisory vom 2024-04-18 (18.04.2024)
For more information, see:
Version history of this security alert
This is the initial version of this IT security notice for ownCloud. If updates are announced, this text will be updated. You can see the changes made using the version history below.
April 18, 2024 – Initial version
+++ Editorial note: This text was generated based on current BSI data and will be updated in a data-driven manner depending on the warning situation. We accept feedback and comments at [email protected]. +++
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