Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2018-1312

Improper Authentication

Published: Mar 26, 2018 | Modified: Jun 17, 2026
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
4.2 LOW
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-1312
CWEhttps://cwe.mitre.org/data/definitions/287.html

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.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

NameVendorStart VersionEnd Version
Http_serverApache2.4.1 (including)2.4.1 (including)
Http_serverApache2.4.2 (including)2.4.2 (including)
Http_serverApache2.4.3 (including)2.4.3 (including)
Http_serverApache2.4.4 (including)2.4.4 (including)
Http_serverApache2.4.6 (including)2.4.6 (including)
Http_serverApache2.4.7 (including)2.4.7 (including)
Http_serverApache2.4.9 (including)2.4.9 (including)
Http_serverApache2.4.10 (including)2.4.10 (including)
Http_serverApache2.4.12 (including)2.4.12 (including)
Http_serverApache2.4.16 (including)2.4.16 (including)
Http_serverApache2.4.17 (including)2.4.17 (including)
Http_serverApache2.4.18 (including)2.4.18 (including)
Http_serverApache2.4.20 (including)2.4.20 (including)
Http_serverApache2.4.23 (including)2.4.23 (including)
Http_serverApache2.4.25 (including)2.4.25 (including)
Http_serverApache2.4.26 (including)2.4.26 (including)
Http_serverApache2.4.27 (including)2.4.27 (including)
Http_serverApache2.4.28 (including)2.4.28 (including)
Http_serverApache2.4.29 (including)2.4.29 (including)
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-0:1-6.jbcs.el6*
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-3.redhat_2.jbcs.el6*
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-apr-0:1.6.3-31.jbcs.el6*
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-apr-util-0:1.6.1-24.jbcs.el6*
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-httpd-0:2.4.29-35.jbcs.el6*
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-mod_cluster-native-0:1.3.8-3.Final_redhat_2.jbcs.el6*
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-mod_jk-0:1.2.46-1.redhat_1.jbcs.el6*
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-nghttp2-0:1.29.0-9.jbcs.el6*
JBoss Core Services on RHEL 6RedHatjbcs-httpd24-openssl-1:1.0.2n-14.jbcs.el6*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-0:1-6.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-3.redhat_2.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-apr-0:1.6.3-31.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-apr-util-0:1.6.1-24.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-httpd-0:2.4.29-35.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-mod_cluster-native-0:1.3.8-3.Final_redhat_2.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-mod_jk-0:1.2.46-1.redhat_1.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-nghttp2-0:1.29.0-9.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-openssl-1:1.0.2n-14.jbcs.el7*
Red Hat Enterprise Linux 7RedHathttpd-0:2.4.6-89.el7_6.1*
Red Hat JBoss Core ServicesRedHathttpd*
Red Hat Software Collections for Red Hat Enterprise Linux 6RedHathttpd24-curl-0:7.61.1-1.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 6RedHathttpd24-httpd-0:2.4.34-7.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 6RedHathttpd24-nghttp2-0:1.7.1-7.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHathttpd24-curl-0:7.61.1-1.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHathttpd24-httpd-0:2.4.34-7.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHathttpd24-nghttp2-0:1.7.1-7.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHathttpd24-curl-0:7.61.1-1.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHathttpd24-httpd-0:2.4.34-7.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHathttpd24-nghttp2-0:1.7.1-7.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSRedHathttpd24-curl-0:7.61.1-1.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSRedHathttpd24-httpd-0:2.4.34-7.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSRedHathttpd24-nghttp2-0:1.7.1-7.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSRedHathttpd24-curl-0:7.61.1-1.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSRedHathttpd24-httpd-0:2.4.34-7.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSRedHathttpd24-nghttp2-0:1.7.1-7.el7*
Apache2Ubuntuartful*
Apache2Ubuntubionic*
Apache2Ubuntucosmic*
Apache2Ubuntudevel*
Apache2Ubuntuesm-infra-legacy/trusty*
Apache2Ubuntuesm-infra-legacy/xenial*
Apache2Ubuntuesm-infra/bionic*
Apache2Ubuntuesm-infra/xenial*
Apache2Ubuntutrusty*
Apache2Ubuntutrusty/esm*
Apache2Ubuntuupstream*
Apache2Ubuntuxenial*

Potential Mitigations

References

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