CVE-2018-1312

MEDIUM

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

http://www.openwall.com/lists/oss-security/2018/03/24/7

http://www.securityfocus.com/bid/103524

http://www.securitytracker.com/id/1040571

https://access.redhat.com/errata/RHSA-2018:3558

https://access.redhat.com/errata/RHSA-2019:0366

https://access.redhat.com/errata/RHSA-2019:0367

https://httpd.apache.org/security/vulnerabilities_24.html

https://lists.debian.org/debian-lts-announce/2018/05/msg00020.html

https://security.netapp.com/advisory/ntap-20180601-0004/

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us

https://usn.ubuntu.com/3627-1/

https://usn.ubuntu.com/3627-2/

https://usn.ubuntu.com/3937-2/

https://www.debian.org/security/2018/dsa-4164

Details

Source: MITRE

Published: 2018-03-26

Updated: 2019-04-22

Type: CWE-287

Risk Information

CVSS v2.0

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL