CVE-2022-46146 — Prometheus Exporter Toolkit is a utility package to build exporters

Prometheus Exporter Toolkit is a utility package to build exporters. Prior to versions 0.7.2 and 0.8.2, if someone has access to a Prometheus web.yml file and users' bcrypted passwords, they can bypass security by poisoning the built-in authentication cache. Versions 0.7.2 a

01What is this vulnerability?

Prometheus Exporter Toolkit is a utility package to build exporters. Prior to versions 0.7.2 and 0.8.2, if someone has access to a Prometheus web.yml file and users' bcrypted passwords, they can bypass security by poisoning the built-in authentication cache. Versions 0.7.2 and 0.8.2 contain a fix for the issue. There is no workaround, but attacker must have access to the hashed password to use…

02Affected products

Vendor	Product	Versions
prometheus	exporter	toolkit — < 0.7.2, >= 0.8.0, < 0.8.2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-11-29T00:00:00.000Z
• Last modified: 2024-08-03T14:24:03.295Z

09References

• github.com — https://github.com/prometheus/exporter-toolkit/security/advisories/GHSA-7rg2-cxv…
• github.com — https://github.com/prometheus/exporter-toolkit/commit/5b1eab34484ddd353986bce736…
• www.openwall.com — http://www.openwall.com/lists/oss-security/2022/11/29/1
• www.openwall.com — http://www.openwall.com/lists/oss-security/2022/11/29/2
• www.openwall.com — http://www.openwall.com/lists/oss-security/2022/11/29/4
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
• security.gentoo.org — https://security.gentoo.org/glsa/202401-15