Auth bypass in Apache Http_server
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 authentication phase may lead to authentication requirements being bypassed.
Vulnerability class: Broken Authentication
EPSS: 0.087 (92.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Http_server
- Apache Software Foundation Http Server — versions 2.4.0 to 2.4.25, 2.2.0 to 2.2.32
- Apple Mac_os_x
- Netapp Clustered_data_ontap
- Netapp Oncommand_unified_manager
- Netapp Storagegrid
- Oracle Secure_global_desktop — versions 5.3
- Debian Debian_linux — versions 8.0, 9.0
- Redhat Enterprise_linux — versions 6.0, 7.0
- Redhat Enterprise_linux_desktop — versions 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-3167?
- CVE-2017-3167 is a critical-severity vulnerability in Apache Http_server, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-06-20.
- How severe is CVE-2017-3167?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-3167 known to be exploited?
- 40 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.