Critical severity · published Jan 27, 2021
CVE-2021-3325
Monitorix 3.13.0 allows remote attackers to bypass Basic Authentication in a default installation (i.e., an installation without a hosts_deny option)
9.8
CVSS
2.3%
EPSS
No
On KEV
Description
Monitorix 3.13.0 allows remote attackers to bypass Basic Authentication in a default installation (i.e., an installation without a hosts_deny option). This issue occurred because a new access-control feature was introduced without considering that some exiting installations became unsafe, upon an update to 3.13.0, unless the new feature was immediately configured.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
32; 33 · source: NVD
MO
Monitorix · Fibranet
3.13.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3325
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3325
Patch
https://github.com/mikaku/Monitorix/commit/d6816e20da1a98bcdc6372d9c36a093df5238f4a
Patch
https://github.com/mikaku/Monitorix/compare/v3.13.0...v3.13.1
Exploit
https://github.com/mikaku/Monitorix/issues/309
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/67DDUU56LP76AJ2K7WJ733QPL2FHKKNG/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGG6WK44CYY6GEFRTCUEDANVNSX5NDH7/
Release Notes
https://www.monitorix.org/news.html?n=20210127
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