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Gentoo Linux Security Advisory                           GLSA 202401-15
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                                           https://security.gentoo.org/
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 Severity: Low
    Title: Prometheus SNMP Exporter: Basic Authentication Bypass
     Date: January 12, 2024
     Bugs: #883649
       ID: 202401-15

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Synopsis
=======
A vulnerability has been found in Prometheus SNMP Exporter which could
allow for authentication bypass.

Background
=========
The Prometheus SNMP Exporter is the recommended way to expose SNMP data
in a format which Prometheus can ingest.

Affected packages
================
Package                    Vulnerable    Unaffected
-------------------------  ------------  ------------
app-metrics/snmp_exporter  < 0.24.1      >= 0.24.1

Description
==========
A vulnerability has been discovered in Prometheus SNMP Exporter. Please
review the CVE identifier referenced below for details.

Impact
=====
A user who knows the password hash of a user capable of performing HTTP
basic authentication with a vulnerable exporter can use the hash to
successfully authenticate as that user via cache manipulation, without
knowing the password from which the hash was derived.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Prometheus SNMP Exporter users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-metrics/snmp_exporter-0.24.1"

References
=========
[ 1 ] CVE-2022-46146
      https://nvd.nist.gov/vuln/detail/CVE-2022-46146

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202401-15

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2024 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5