Vulnerability CVE-2021-23969

Vulnerability Name:

CVE-2021-23969 (CCN-197285)

Assigned:

2021-02-23

Published:

2021-02-23

Updated:

2022-05-27

Summary:

As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If thatâ€™s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

CVSS v3 Severity:

4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

4.3 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
3.8 Low (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

CVSS v2 Severity:

4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): None Availibility (A): None

Vulnerability Type:

CWE-noinfo
CWE-200

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2021-23969

Source: MISC
Type: Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1542194

Source: XF
Type: UNKNOWN
firefox-cve202123969-info-disc(197285)

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20210301 [SECURITY] [DLA 2578-1] thunderbird security update

Source: GENTOO
Type: Third Party Advisory
GLSA-202104-09

Source: GENTOO
Type: Third Party Advisory
GLSA-202104-10

Source: DEBIAN
Type: Third Party Advisory
DSA-4866

Source: CCN
Type: IBM Security Bulletin 6447459 (Application Performance Management)
Multiple vulnerabilities of Mozilla Firefox (less than Firefox 78.9.0 ESR +CVE-2021-23978) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF13 + ICAM2019.3.0 - 2020.2.0

Source: CCN
Type: IBM Security Bulletin 6454029 (Cloud Pak for Multicloud Management)
Multiple vulnerabilities in Mozilla Firefox affect IBM Cloud Pak for Multicloud Management Monitoring

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-07
Security Vulnerabilities fixed in Firefox 86

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-08
Security Vulnerabilities fixed in Firefox ESR 78.8

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-09
Security Vulnerabilities fixed in Thunderbird 78.8

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-08/

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-09/

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-23969

Vulnerable Configuration:

Configuration 1:

cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version < 86.0)

OR cpe:/a:mozilla:firefox_esr:*:*:*:*:*:*:*:* (Version < 78.8)

OR cpe:/a:mozilla:thunderbird:*:*:*:*:*:*:*:* (Version < 78.8)

Configuration 2:

cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Configuration RedHat 1:

cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

Configuration RedHat 2:

cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

Configuration RedHat 3:

cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*

Configuration RedHat 4:

cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*

Configuration RedHat 5:

cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*

Configuration RedHat 6:

cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*

Configuration CCN 1:

cpe:/a:ibm:application_performance_management:8.1.4:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:7868	P	MozillaFirefox-102.11.0-150200.152.87.1 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:645	P	Security update for php7 (Moderate) (in QA)	2022-10-04
oval:org.opensuse.security:def:93317	P	(Important)	2022-07-14
oval:org.opensuse.security:def:3252	P	libsmi-0.4.8-18.55 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:3546	P	libICE6-1.0.8-12.1 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:94882	P	MozillaFirefox-91.8.0-150200.152.26.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:95176	P	MozillaThunderbird-91.8.0-150200.8.65.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94827	P	shim-15.4-4.7.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:93164	P	(Moderate)	2022-02-18
oval:org.opensuse.security:def:99207	P	(Important)	2022-02-04
oval:org.opensuse.security:def:111899	P	MozillaFirefox-92.0-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:111905	P	MozillaThunderbird-91.1.1-1.1 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:101540	P	Security update for samba (Important)	2021-11-15
oval:org.opensuse.security:def:102218	P	Security update for qemu (Important)	2021-11-03
oval:org.opensuse.security:def:1639	P	Security update for squid (Moderate)	2021-10-20
oval:org.opensuse.security:def:105476	P	MozillaFirefox-92.0-1.2 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:105478	P	MozillaThunderbird-91.1.1-1.1 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:99404	P	(Important)	2021-08-16
oval:org.opensuse.security:def:101134	P	MozillaFirefox-78.10.0-8.38.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:72447	P	MozillaFirefox-78.10.0-8.38.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62728	P	MozillaFirefox-78.10.0-8.38.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:111253	P	Security update for MozillaThunderbird (Important)	2021-03-05
oval:org.opensuse.security:def:111246	P	Security update for MozillaFirefox (Important)	2021-03-03
oval:org.opensuse.security:def:108884	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:95505	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:9654	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:92454	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:67046	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:5957	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:9853	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:92653	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:69794	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:99603	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:8901	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:92062	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:99012	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:10404	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:92852	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:69993	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:99802	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:76114	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:97255	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:9096	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:92257	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:93011	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:70544	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:100114	P	Security update for MozillaFirefox (Important)	2021-03-02
oval:org.opensuse.security:def:23751	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:55300	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:84732	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:43086	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:117720	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:34032	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:29477	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:58088	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:87552	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:41155	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:51739	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:82684	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:127225	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:97250	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:70813	P	Security update for MozillaThunderbird (Important)	2021-03-01
oval:org.opensuse.security:def:32265	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:60465	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:89510	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:24027	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:55855	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:85813	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:109673	P	Security update for MozillaThunderbird (Important)	2021-03-01
oval:org.opensuse.security:def:44376	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:96335	P	Security update for MozillaThunderbird (Important)	2021-03-01
oval:org.opensuse.security:def:119813	P	Security update for MozillaThunderbird (Important)	2021-03-01
oval:org.opensuse.security:def:34642	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:30032	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:58911	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:88254	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:21417	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:52015	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:83239	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:74339	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:97251	P	Security update for MozillaThunderbird (Important)	2021-03-01
oval:org.opensuse.security:def:33088	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:26202	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:57172	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:86200	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:38656	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:45585	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:81111	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:125660	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:31349	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:59597	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:88571	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:23182	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:54767	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:84274	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:108206	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:5189	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:103007	P	Security update for MozillaThunderbird (Important)	2021-03-01
oval:org.opensuse.security:def:33774	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:65271	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:28944	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:57559	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:86729	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:39946	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:51170	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:82151	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:126828	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:10673	P	Security update for MozillaThunderbird (Important)	2021-03-01
oval:org.opensuse.security:def:4182	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:31736	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:59855	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:89252	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:com.redhat.rhsa:def:20210655	P	RHSA-2021:0655: firefox security update (Critical)	2021-02-24
oval:com.redhat.rhsa:def:20210656	P	RHSA-2021:0656: firefox security update (Critical)	2021-02-24
oval:com.redhat.rhsa:def:20210657	P	RHSA-2021:0657: thunderbird security update (Important)	2021-02-24
oval:com.redhat.rhsa:def:20210661	P	RHSA-2021:0661: thunderbird security update (Important)	2021-02-24

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