CVE-2018-1312

Impact:
Low
Public Date:
2018-03-21
CWE:
CWE-305
Bugzilla:
1560634: CVE-2018-1312 httpd: Weak Digest auth nonce generation in mod_auth_digest

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2018-1312 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

The "AuthType Digest" directive is not enabled in the default httpd configuration as shipped with Red Hat Enterprise Linux, and needs to be explicitly enabled. Therefore this flaw has no impact on the default versions of the httpd package as shipped with Red Hat Enterprise Linux. Also upstream discourages the use of mod_auth_digest because of its inherent security weaknesses and recommends the use of mod_ssl.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 4.2
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact None

Red Hat Security Errata

Platform Errata Release Date
Red Hat Software Collections for Red Hat Enterprise Linux 7 (httpd24-httpd) RHSA-2018:3558 2018-11-13
Red Hat Software Collections for Red Hat Enterprise Linux 6 (httpd24-httpd) RHSA-2018:3558 2018-11-13
Red Hat JBoss Core Services 1 RHSA-2019:0366 2019-02-18
Red Hat JBoss Core Services on RHEL 6 Server RHSA-2019:0367 2019-02-18
Red Hat JBoss Core Services on RHEL 7 Server RHSA-2019:0367 2019-02-18

Affected Packages State

Platform Package State
Red Hat Mobile Application Platform On-Premise 4 rhmap-httpd-docker Not affected
Red Hat JBoss Web Server 3 httpd Not affected
Red Hat JBoss EWS 2 httpd Will not fix
Red Hat Enterprise Linux 7 httpd Affected
Red Hat Enterprise Linux 6 httpd Will not fix
Red Hat Enterprise Linux 5 httpd Will not fix

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation