CVE-2019-14857 — A flaw was found in mod_auth_openidc before version 2

A flaw was found in mod_auth_openidc before version 2.4.0.1. An open redirect issue exists in URLs with trailing slashes similar to CVE-2019-3877 in mod_auth_mellon.

01What is this vulnerability?

A flaw was found in mod_auth_openidc before version 2.4.0.1. An open redirect issue exists in URLs with trailing slashes similar to CVE-2019-3877 in mod_auth_mellon.

02Affected products

Vendor	Product	Versions
[UNKNOWN]	mod_auth_openidc	2.4.0.1

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

08Timeline

• Published: 2019-11-26T11:56:17.000Z
• Last modified: 2024-08-05T00:26:39.151Z

09References

• bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14857
• github.com — https://github.com/zmartzone/mod_auth_openidc/commit/5c15dfb08106c2451c2c44ce7ac…
• github.com — https://github.com/zmartzone/mod_auth_openidc/commit/ce37080c6aea30aabae8b4a9b4e…
• github.com — https://github.com/zmartzone/mod_auth_openidc/pull/451
• groups.google.com — https://groups.google.com/forum/#%21topic/mod_auth_openidc/boy1Ba3Gdk4
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/07/msg00028.html