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Vulnerability details: VCID-k35f-wy9p-aaaq
Vulnerability ID VCID-k35f-wy9p-aaaq
Aliases CVE-2020-6823
Summary A malicious extension could have called <code>browser.identity.launchWebAuthFlow</code>, controlling the redirect_uri, and through the Promise returned, obtain the Auth code and gain access to the user's account at the service provider. This vulnerability affects Firefox < 75.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-862 Missing Authorization
CWE-358 Improperly Implemented Security Check for Standard
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-6823.html
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6823.json
epss 0.00235 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00235 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00235 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00235 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00244 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00304 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00321 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.00321 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
epss 0.01037 https://api.first.org/data/v1/epss?cve=CVE-2020-6823
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1821693
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6823
cvssv3.1 7.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-6823
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-6823
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-6823
archlinux Critical https://security.archlinux.org/AVG-1127
generic_textual Medium https://ubuntu.com/security/notices/USN-4323-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-4323-1
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-12
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2020-12/#CVE-2020-6823
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-6823.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6823.json
https://api.first.org/data/v1/epss?cve=CVE-2020-6823
https://bugzilla.mozilla.org/show_bug.cgi?id=1614919
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6823
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://ubuntu.com/security/notices/USN-4323-1
https://usn.ubuntu.com/usn/usn-4323-1
https://www.mozilla.org/en-US/security/advisories/mfsa2020-12/#CVE-2020-6823
https://www.mozilla.org/security/advisories/mfsa2020-12/
1821693 https://bugzilla.redhat.com/show_bug.cgi?id=1821693
ASA-202004-8 https://security.archlinux.org/ASA-202004-8
AVG-1127 https://security.archlinux.org/AVG-1127
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
CVE-2020-6823 https://nvd.nist.gov/vuln/detail/CVE-2020-6823
GLSA-202004-11 https://security.gentoo.org/glsa/202004-11
mfsa2020-12 https://www.mozilla.org/en-US/security/advisories/mfsa2020-12
USN-4323-1 https://usn.ubuntu.com/4323-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6823.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:H/PR:L/UI:R/S:U/C:H/I:H/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: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6823
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-2020-6823
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:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6823
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 0.61153
EPSS Score 0.00235
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.