CVE-2022-43543

Summary

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

Affected Software

Weaknesses

• User Interface (UI) Misrepresentation of Critical Information

ADP Enrichment

CVE Program Container

Additional References

• https://www.au.com/mobile/service/plus-message/information/
• https://www.docomo.ne.jp/service/plus_message/
• https://www.softbank.jp/mobile/service/plus-message/
• https://jvn.jp/en/jp/JVN43561812/index.html

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://www.au.com/mobile/service/plus-message/information/
• https://www.docomo.ne.jp/service/plus_message/
• https://www.softbank.jp/mobile/service/plus-message/
• https://jvn.jp/en/jp/JVN43561812/index.html

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