Medium severity · published Dec 21, 2022
CVE-2022-43543
KDDI +Message App, NTT DOCOMO +Message App, and SoftBank +Message App contain a vulnerability caused by improper handling of Unicode control characters
5.4
CVSS
0.5%
EPSS
No
On KEV
Description
KDDI +Message App, NTT DOCOMO +Message App, and SoftBank +Message App contain a vulnerability caused by improper handling of Unicode control characters. +Message App displays text unprocessed, even when control characters are contained, and the text is shown based on Unicode control character's specifications. Therefore, a crafted text may display misleading web links. As a result, a spoofed URL may be displayed and phishing attacks may be conducted. Affected products and versions are as follows: KDDI +Message App for Android prior to version 3.9.2 and +Message App for iOS prior to version 3.9.4, NTT DOCOMO +Message App for Android prior to version 54.49.0500 and +Message App for iOS prior to version 3.9.4, and SoftBank +Message App for Android prior to version 12.9.5 and +Message App for iOS prior to version 3.9.4
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
+ Message · Docomo
before 3.9.4; before 54.49.0500 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-43543
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-43543
Third Party Advisory
https://jvn.jp/en/jp/JVN43561812/index.html
Vendor Advisory
https://www.au.com/mobile/service/plus-message/information/
Vendor Advisory
https://www.docomo.ne.jp/service/plus_message/
Vendor Advisory
https://www.softbank.jp/mobile/service/plus-message/