Bugzilla – Bug 1192031
VUL-0: CVE-2021-41177: nextcloud: Rate-limits not working on instances without configured memory cache backend
Last modified: 2022-01-29 08:42:10 UTC
CVE-2021-41177 Nextcloud is an open-source, self-hosted productivity platform. Prior to versions 20.0.13, 21.0.5, and 22.2.0, Nextcloud Server did not implement a database backend for rate-limiting purposes. Any component of Nextcloud using rate-limits (as as `AnonRateThrottle` or `UserRateThrottle`) was thus not rate limited on instances not having a memory cache backend configured. In the case of a default installation, this would notably include the rate-limits on the two factor codes. It is recommended that the Nextcloud Server be upgraded to 20.0.13, 21.0.5, or 22.2.0. As a workaround, enable a memory cache backend in `config.php`. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-41177 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41177 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2 https://github.com/nextcloud/server/pull/28728 http://www.cvedetails.com/cve/CVE-2021-41177/ https://hackerone.com/reports/1265709
Affected codestreams: - openSUSE:Leap:15.2:Update - openSUSE:Backports:SLE-12 - openSUSE:Backports:SLE-15-SP2:Update - openSUSE:Backports:SLE-15-SP3:Update - openSUSE:Backports:SLE-15-SP4
Security update request is on the way.
This is an autogenerated message for OBS integration: This bug (1192031) was mentioned in https://build.opensuse.org/request/show/940073 15.2+Backports:SLE-12+Backports:SLE-15-SP1+Backports:SLE-15-SP2+Backports:SLE-15-SP3 / nextcloud
openSUSE-SU-2021:1602-1: An update that fixes three vulnerabilities is now available. Category: security (important) Bug References: 1192028,1192030,1192031 CVE References: CVE-2021-41177,CVE-2021-41178,CVE-2021-41179 JIRA References: Sources used: SUSE Package Hub for SUSE Linux Enterprise 12 (src): nextcloud-20.0.14-34.1
openSUSE-SU-2021:1602-1: An update that fixes three vulnerabilities is now available. Category: security (important) Bug References: 1192028,1192030,1192031 CVE References: CVE-2021-41177,CVE-2021-41178,CVE-2021-41179 JIRA References: Sources used: openSUSE Leap 15.2 (src): nextcloud-20.0.14-lp152.3.15.1 openSUSE Backports SLE-15-SP3 (src): nextcloud-20.0.14-bp153.2.9.1 openSUSE Backports SLE-15-SP2 (src): nextcloud-20.0.14-bp152.2.15.1 openSUSE Backports SLE-15-SP1 (src): nextcloud-20.0.14-bp151.3.21.1 SUSE Package Hub for SUSE Linux Enterprise 12 (src): nextcloud-20.0.14-34.1
New version is distributed.