NVD Vulnerability Detail

CVE-2020-15677

Summary	By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
Publication Date	Oct. 2, 2020, 4:15 a.m.
Registration Date	Jan. 26, 2021, 11:53 a.m.
Last Update	Nov. 21, 2024, 2:05 p.m.

CVSS3.1 : MEDIUM
スコア	6.1
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	要
影響の想定範囲(S)	変更あり
機密性への影響(C)	低
完全性への影響(I)	低
可用性への影響(A)	なし

CVSS2.0 : MEDIUM
Score	5.8
Vector	AV:N/AC:M/Au:N/C:P/I:P/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	中
攻撃前の認証要否(Au)	不要
機密性への影響(C)	低
完全性への影響(I)	低
可用性への影響(A)	なし
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	はい

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:mozilla:firefox_esr::::::::				78.3
cpe:2.3:a:mozilla:thunderbird::::::::				78.3
cpe:2.3:a:mozilla:firefox::::::::				81.0

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:o:opensuse:leap:15.2:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html	Broken Link Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html	Broken Link Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html	Broken Link Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html	Broken Link Mailing List Third Party Advisory
5	https://bugzilla.mozilla.org/show_bug.cgi?id=1641487	Issue Tracking Permissions Required Vendor Advisory
6	https://bugzilla.mozilla.org/show_bug.cgi?id=1641487	Issue Tracking Permissions Required Vendor Advisory
7	https://lists.debian.org/debian-lts-announce/2020/10/msg00020.html	Mailing List Third Party Advisory
8	https://lists.debian.org/debian-lts-announce/2020/10/msg00020.html	Mailing List Third Party Advisory
9	https://security.gentoo.org/glsa/202010-02	Third Party Advisory
10	https://security.gentoo.org/glsa/202010-02	Third Party Advisory
11	https://www.debian.org/security/2020/dsa-4770	Third Party Advisory
12	https://www.debian.org/security/2020/dsa-4770	Third Party Advisory
13	https://www.mozilla.org/security/advisories/mfsa2020-42/	Release Notes Vendor Advisory
14	https://www.mozilla.org/security/advisories/mfsa2020-42/	Release Notes Vendor Advisory
15	https://www.mozilla.org/security/advisories/mfsa2020-43/	Release Notes Vendor Advisory
16	https://www.mozilla.org/security/advisories/mfsa2020-43/	Release Notes Vendor Advisory
17	https://www.mozilla.org/security/advisories/mfsa2020-44/	Release Notes Vendor Advisory
18	https://www.mozilla.org/security/advisories/mfsa2020-44/	Release Notes Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-601	オープンリダイレクト	https://cwe.mitre.org/data/definitions/601.html

JVN Vulnerability Information

Firefox および Thunderbird におけるオープンリダイレクトの脆弱性

Title	Firefox および Thunderbird におけるオープンリダイレクトの脆弱性
Summary	Firefox および Thunderbird には、オープンリダイレクトの脆弱性が存在します。
Possible impacts	情報を取得される、および情報を改ざんされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Sept. 22, 2020, midnight
Registration Date	April 12, 2021, 4:41 p.m.
Last Update	April 12, 2021, 4:41 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 81 未満

Mozilla Firefox ESR 78.3 未満

Mozilla Thunderbird 78.3 未満

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2020-15677	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15677
National Vulnerability Database (NVD)
2	CVE-2020-15677	https://nvd.nist.gov/vuln/detail/CVE-2020-15677

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-601	https://cwe.mitre.org/data/definitions/601.html

ベンダー情報

No	Name	URL
Mozilla Foundation Security Advisory
1	MFSA2020-42	https://www.mozilla.org/en-US/security/advisories/mfsa2020-42/
2	MFSA2020-43	https://www.mozilla.org/en-US/security/advisories/mfsa2020-43/
3	MFSA2020-44	https://www.mozilla.org/en-US/security/advisories/mfsa2020-44/

Change Log

No	Changed Details	Date of change
1	[2021年04月12日] 掲載	April 12, 2021, 4:41 p.m.