Search for vulnerabilities
Vulnerability details: VCID-gbmt-u9fv-5fcm
Vulnerability ID VCID-gbmt-u9fv-5fcm
Aliases CVE-2018-1312
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-305 Authentication Bypass by Primary Weakness
CWE-287 Improper Authentication
System Score Found at
cvssv3 4.2 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1312.json
epss 0.00607 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.00607 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.00607 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.05927 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.05927 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.05927 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.05927 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.05927 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.05927 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.05927 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.05927 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.07996 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
epss 0.08196 https://api.first.org/data/v1/epss?cve=CVE-2018-1312
cvssv3 5.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd low https://httpd.apache.org/security/json/CVE-2018-1312.json
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-1312
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2018-1312
archlinux Medium https://security.archlinux.org/AVG-664
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2018:3558
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1312.json
https://api.first.org/data/v1/epss?cve=CVE-2018-1312
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15710
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15715
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1283
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1301
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1303
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1312
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E
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://www.debian.org/security/2018/dsa-4164
https://www.tenable.com/security/tns-2019-09
http://www.openwall.com/lists/oss-security/2018/03/24/7
http://www.securityfocus.com/bid/103524
http://www.securitytracker.com/id/1040571
1560634 https://bugzilla.redhat.com/show_bug.cgi?id=1560634
ASA-201804-4 https://security.archlinux.org/ASA-201804-4
AVG-664 https://security.archlinux.org/AVG-664
cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.27:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.27:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.28:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.28:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.29:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.29:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.4:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVE-2018-1312 https://httpd.apache.org/security/json/CVE-2018-1312.json
CVE-2018-1312 https://nvd.nist.gov/vuln/detail/CVE-2018-1312
RHSA-2019:0366 https://access.redhat.com/errata/RHSA-2019:0366
RHSA-2019:0367 https://access.redhat.com/errata/RHSA-2019:0367
RHSA-2019:1898 https://access.redhat.com/errata/RHSA-2019:1898
USN-3627-1 https://usn.ubuntu.com/3627-1/
USN-3627-2 https://usn.ubuntu.com/3627-2/
USN-3937-2 https://usn.ubuntu.com/3937-2/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1312.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-1312
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-1312
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.6886
EPSS Score 0.00607
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:28:26.952354+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.19/main.json 37.0.0