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Vulnerability details: VCID-vytm-ev3f-aaac
Vulnerability ID VCID-vytm-ev3f-aaac
Aliases BIT-2021-45115
BIT-django-2021-45115
CVE-2021-45115
GHSA-53qw-q765-4fww
PYSEC-2022-1
Summary An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-400 Uncontrolled Resource Consumption
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
rhas Moderate https://access.redhat.com/errata/RHSA-2022:5498
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45115.json
epss 0.00242 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00275 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00307 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00307 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00307 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00307 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00307 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00307 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00307 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00312 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00312 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00312 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00312 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00331 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00331 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00331 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00331 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00331 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00331 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.0034 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.0034 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.0034 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.0034 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.0034 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.0034 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.0034 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00343 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00343 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00343 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00343 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00347 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00348 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00348 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00348 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00348 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00348 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00348 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00348 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00361 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00361 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00361 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00361 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00361 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
epss 0.00361 https://api.first.org/data/v1/epss?cve=CVE-2021-45115
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=2037024
cvssv3.1 7.5 https://docs.djangoproject.com/en/4.0/releases/security
generic_textual HIGH https://docs.djangoproject.com/en/4.0/releases/security
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-53qw-q765-4fww
cvssv3.1 3.7 https://github.com/django/django
generic_textual MODERATE https://github.com/django/django
cvssv3.1 7.5 https://github.com/django/django/commit/2135637fdd5ce994de110affef9e67dffdf77277
generic_textual HIGH https://github.com/django/django/commit/2135637fdd5ce994de110affef9e67dffdf77277
cvssv3.1 7.5 https://github.com/django/django/commit/a8b32fe13bcaed1c0b772fdc53de84abc224fb20
generic_textual HIGH https://github.com/django/django/commit/a8b32fe13bcaed1c0b772fdc53de84abc224fb20
cvssv3.1 7.5 https://github.com/django/django/commit/df79ef03ac867c93caaa6be56bc69e66abfeef8f
generic_textual HIGH https://github.com/django/django/commit/df79ef03ac867c93caaa6be56bc69e66abfeef8f
cvssv3.1 7.5 https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2022-1.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2022-1.yaml
cvssv3.1 3.7 https://groups.google.com/forum/#%21forum/django-announce
generic_textual MODERATE https://groups.google.com/forum/#%21forum/django-announce
cvssv3.1 7.5 https://groups.google.com/forum/#!forum/django-announce
generic_textual HIGH https://groups.google.com/forum/#!forum/django-announce
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2021-45115
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-45115
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-45115
cvssv3.1 5.3 https://security.netapp.com/advisory/ntap-20220121-0005
generic_textual MODERATE https://security.netapp.com/advisory/ntap-20220121-0005
cvssv3.1 5.3 https://www.djangoproject.com/weblog/2022/jan/04/security-releases
generic_textual MODERATE https://www.djangoproject.com/weblog/2022/jan/04/security-releases
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45115.json
https://api.first.org/data/v1/epss?cve=CVE-2021-45115
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45115
https://docs.djangoproject.com/en/4.0/releases/security
https://docs.djangoproject.com/en/4.0/releases/security/
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/django/django
https://github.com/django/django/commit/2135637fdd5ce994de110affef9e67dffdf77277
https://github.com/django/django/commit/a8b32fe13bcaed1c0b772fdc53de84abc224fb20
https://github.com/django/django/commit/df79ef03ac867c93caaa6be56bc69e66abfeef8f
https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2022-1.yaml
https://groups.google.com/forum/#%21forum/django-announce
https://groups.google.com/forum/#!forum/django-announce
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/
https://security.netapp.com/advisory/ntap-20220121-0005
https://security.netapp.com/advisory/ntap-20220121-0005/
https://www.djangoproject.com/weblog/2022/jan/04/security-releases
https://www.djangoproject.com/weblog/2022/jan/04/security-releases/
1003113 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1003113
2037024 https://bugzilla.redhat.com/show_bug.cgi?id=2037024
cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
CVE-2021-45115 https://nvd.nist.gov/vuln/detail/CVE-2021-45115
GHSA-53qw-q765-4fww https://github.com/advisories/GHSA-53qw-q765-4fww
RHSA-2022:5498 https://access.redhat.com/errata/RHSA-2022:5498
USN-5204-1 https://usn.ubuntu.com/5204-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45115.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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://docs.djangoproject.com/en/4.0/releases/security
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 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: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/django/django
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/django/django/commit/2135637fdd5ce994de110affef9e67dffdf77277
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/django/django/commit/a8b32fe13bcaed1c0b772fdc53de84abc224fb20
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/django/django/commit/df79ef03ac867c93caaa6be56bc69e66abfeef8f
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2022-1.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: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://groups.google.com/forum/#%21forum/django-announce
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://groups.google.com/forum/#!forum/django-announce
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV
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:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-45115
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:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-45115
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-45115
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://security.netapp.com/advisory/ntap-20220121-0005
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://www.djangoproject.com/weblog/2022/jan/04/security-releases
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 0.32132
EPSS Score 0.00242
Published At March 29, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.