CVE-2018-1312

CRITICAL

Apache HTTP Server 2.2.0-2.4.29 - Improper Authentication via Nonce Generation

Title source: llm
STIX 2.1

Description

In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.

References (29)

Core 29
Core References
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3627-1/
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4164
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20180601-0004/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3558
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:0367
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3627-2/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103524
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2018/03/24/7
Vendor Advisory x_refsource_confirm
https://httpd.apache.org/security/vulnerabilities_24.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/05/msg00020.html
Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040571
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:0366
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3937-2/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:1898
Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/tns-2019-09

Scores

CVSS v3 9.8
EPSS 0.0728
EPSS Percentile 91.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (37)
apache/http_server 2.4.1
apache/http_server 2.4.2
apache/http_server 2.4.3
apache/http_server 2.4.4
apache/http_server 2.4.6
apache/http_server 2.4.7
apache/http_server 2.4.9
apache/http_server 2.4.10
apache/http_server 2.4.12
apache/http_server 2.4.16
... and 27 more
Published Mar 26, 2018
Tracked Since Feb 18, 2026