CVE-2023-45148

Rate limiter not working reliable when Memcached is installed in Nextcloud

Description

Nextcloud is an open source home cloud server. When Memcached is used as `memcache.distributed` the rate limiting in Nextcloud Server could be reset unexpectedly resetting the rate count earlier than intended. Users are advised to upgrade to versions 25.0.11, 26.0.6 or 27.1.0. Users unable to upgrade should change their config setting `memcache.distributed` to `\OC\Memcache\Redis` and install Redis instead of Memcached.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.18%
Vendor Advisory github.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xmhp-7vr4-hp63 vendor advisory
https://github.com/nextcloud/server/pull/40293 patch issue tracking
https://hackerone.com/reports/2110945 permissions required

Frequently Asked Questions

What is the severity of CVE-2023-45148?
CVE-2023-45148 has been scored as a medium severity vulnerability.
How to fix CVE-2023-45148?
To fix CVE-2023-45148, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-45148 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-45148 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-45148?
CVE-2023-45148 affects nextcloud security-advisories.
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