製品・ソフトウェアに関する情報

JVN脆弱性詳細

Enigmail におけるデジタル署名の検証に関する脆弱性

Title	Enigmail におけるデジタル署名の検証に関する脆弱性
Summary	Enigmail には、デジタル署名の検証に関する脆弱性が存在します。本脆弱性は、CVE-2017-17847 とは異なる脆弱性です。
Possible impacts	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	Dec. 19, 2017, midnight
Registration Date	Jan. 25, 2018, 4:07 p.m.
Last Update	Jan. 25, 2018, 4:07 p.m.

Affected System

Debian

Debian GNU/Linux 8.0

Debian GNU/Linux 9.0

The Enigmail Project

Enigmail 1.9.9 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-2017-17848	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17848
National Vulnerability Database (NVD)
2	CVE-2017-17848	https://nvd.nist.gov/vuln/detail/CVE-2017-17848

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-347	https://cwe.mitre.org/data/definitions/347.html

ベンダー情報

No	Name	URL
Debian Security Advisory
1	DSA-4070	https://www.debian.org/security/2017/dsa-4070
debian-security-announce
2	[SECURITY] [DSA 4070-1] enigmail security update	https://lists.debian.org/debian-security-announce/2017/msg00333.html
SourceForge
3	#709 Signature Spoofing Attacks using multipart/related	https://sourceforge.net/p/enigmail/bugs/709/

Change Log

No	Changed Details	Date of change
0	[2018年01月25日] 掲載	Feb. 17, 2018, 10:37 a.m.

NVD Vulnerability Information

CVE-2017-17848

Summary	An issue was discovered in Enigmail before 1.9.9. In a variant of CVE-2017-17847, signature spoofing is possible for multipart/related messages because a signed message part can be referenced with a cid: URI but not actually displayed. In other words, the entire containing message appears to be signed, but the recipient does not see any of the signed text.
Publication Date	Dec. 28, 2017, 2:08 a.m.
Registration Date	Jan. 26, 2021, 1:20 p.m.
Last Update	Nov. 21, 2024, 12:18 p.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:enigmail:enigmail::::::::					1.9.9

Related information, measures and tools

No	URL	タグ
1	http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html	Third Party Advisory VDB Entry
2	http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html	Third Party Advisory VDB Entry
3	http://seclists.org/fulldisclosure/2019/Apr/38	Mailing List Third Party Advisory
4	http://seclists.org/fulldisclosure/2019/Apr/38	Mailing List Third Party Advisory
5	http://www.openwall.com/lists/oss-security/2019/04/30/4	Mailing List Third Party Advisory
6	http://www.openwall.com/lists/oss-security/2019/04/30/4	Mailing List Third Party Advisory
7	https://github.com/RUB-NDS/Johnny-You-Are-Fired
8	https://github.com/RUB-NDS/Johnny-You-Are-Fired
9	https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
10	https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
11	https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html	Mailing List Third Party Advisory
12	https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html	Mailing List Third Party Advisory
13	https://lists.debian.org/debian-security-announce/2017/msg00333.html	Mailing List Third Party Advisory
14	https://lists.debian.org/debian-security-announce/2017/msg00333.html	Mailing List Third Party Advisory
15	https://sourceforge.net/p/enigmail/bugs/709/	Third Party Advisory
16	https://sourceforge.net/p/enigmail/bugs/709/	Third Party Advisory
17	https://www.debian.org/security/2017/dsa-4070	Third Party Advisory
18	https://www.debian.org/security/2017/dsa-4070	Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-347	デジタル署名の不適切な検証	https://cwe.mitre.org/data/definitions/347.html