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CVE-2023-49105

CRITICALCVSS 9.8/10EPSS 11.07%

Last modified

CVE-2023-49105 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. EPSS estimates a 11.07% chance of exploitation in the next 30 days.

Description

An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed URLs can be accepted even when no signing-key is configured for the owner of the files. The earliest affected version is 10.6.0.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
11.07%

95.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OwncloudOwncloud Server>= 10.6.0, < 10.13.1

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2023-49105?
An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed URLs can be accepted even when no signing-key is configured for the owner of the files. The earliest affected version is 10.6.0.
How severe is CVE-2023-49105?
CVE-2023-49105 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 11.07% probability of exploitation in the next 30 days.
How do I fix CVE-2023-49105?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-49105?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST