CVE-2018-0691 : Multiple +Message Apps (Softbank +Message App for Android prior to version 10.1.

Multiple +Message Apps (Softbank +Message App for Android prior to version 10.1.7, Softbank +Message App for iOS prior to version 1.1.23, NTT DOCOMO +Message App for Android prior to version 42.40.2800, NTT DOCOMO +Message App for iOS prior to version 1.1.23, KDDI +Message App for Android prior to version 1.0.6, and KDDI +Message App for iOS prior to version 1.1.23) do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Published 2018-11-15 15:29:01

Updated 2019-02-04 20:16:02

Source JPCERT/CC

View at NVD, CVE.org

Products affected by CVE-2018-0691

Kddi » + Message
Versions before (<) 1.0.6
cpe:2.3:a:kddi:\+_message:*:*:*:*:*:*:*:*
Matching versions
When used together with: Google » Android » Version: N/A
Kddi » + Message
Versions before (<) 1.1.23
cpe:2.3:a:kddi:\+_message:*:*:*:*:*:*:*:*
Matching versions
When used together with: Apple » Iphone Os
Softbank » + Message
Versions before (<) 1.1.23
cpe:2.3:a:softbank:\+_message:*:*:*:*:*:*:*:*
Matching versions
When used together with: Apple » Iphone Os
Softbank » + Message
Versions before (<) 10.1.7
cpe:2.3:a:softbank:\+_message:*:*:*:*:*:*:*:*
Matching versions
When used together with: Google » Android » Version: N/A
Ntttocomo » + Message
Versions before (<) 42.40.2800
cpe:2.3:a:ntttocomo:\+_message:*:*:*:*:*:*:*:*
Matching versions
When used together with: Google » Android » Version: N/A
Ntt Tocomo » + Message
Versions before (<) 1.1.23
cpe:2.3:a:ntt_tocomo:\+_message:*:*:*:*:*:*:*:*
Matching versions
When used together with: Apple » Iphone Os

Exploit prediction scoring system (EPSS) score for CVE-2018-0691

EPSS FAQ

0.13%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 30 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-0691

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:P/I:N/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
5.9	MEDIUM	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N	2.2	3.6	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2018-0691

CWE-295 Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-0691

https://www.softbank.jp/mobile/info/personal/news/service/20180927a/

「＋メッセージ」セキュリティ対策のためのアプリアップデートのお願い | スマートフォン・携帯電話 | ソフトバンク
Patch;Vendor Advisory
https://www.au.com/information/notice_mobile/service/2018-002/

「＋メッセージ」アプリをご利用のお客様へ　アプリアップデートのお願い | スマートフォン・携帯電話 | au
Patch;Vendor Advisory
http://jvn.jp/en/jp/JVN37288228/index.html

JVN#37288228: +Message App fails to verify SSL server certificates
Third Party Advisory
https://www.nttdocomo.co.jp/info/notice/page/180927_00.html

ドコモからのお知らせ : 「＋メッセージ」アプリをご利用のお客さまへ、アップデート実施のお願い | お知らせ | NTTドコモ
Patch;Vendor Advisory

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Vulnerability Details : CVE-2018-0691

Products affected by CVE-2018-0691

Exploit prediction scoring system (EPSS) score for CVE-2018-0691

CVSS scores for CVE-2018-0691

CWE ids for CVE-2018-0691

References for CVE-2018-0691