High severity7.4NVD Advisory· Published Jan 28, 2020· Updated Jun 17, 2026
CVE-2020-5523
CVE-2020-5523
Description
Android App 'MyPallete' and some of the Android banking applications based on 'MyPallete' do not verify X.509 certificates from servers, and also do not properly validate certificates with host-mismatch, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Ntt Data Corporation/'mypallete' And Some Of The Android Banking Applications That Use 'mypallete'v5Range: MyPallete all versions, AshikagaBankingAppli ver1.0.4 and earlier, SENSHUIKEDABANKBankingAppli ver3.0.4 and earlier, ShikokuBankingAppli ver2.0.1 and earlier, TohokuBankingAppli ver1.0.1 and earlier, NaganoBankingAppli ver1.0.1 and earlier, 77BankingAppli ver2.0.1 and earlier, HokkaidoBankingAppli ver3.0.1 and earlier, and HokurikuBankingAppli ver2.0.1 and earlier
Patches
Vulnerability mechanics
References
10- jvn.jp/en/jp/JVN28845872/index.htmlnvdThird Party Advisory
- www.dokodemobank.ne.jp/info_20200128_bankingapp.htmlnvdThird Party Advisory
- www.77bank.co.jp/pdf/oshirase/20012801_appvulnerability.pdfnvdThird Party Advisory
- www.ashikagabank.co.jp/appbanking/pdf/oshirase.pdfnvdThird Party Advisory
- www.hokkaidobank.co.jp/common/dat/2020/0120/15795047141946146699.pdfnvdThird Party Advisory
- www.hokugin.co.jp/info/archives/personal/2020/1913.htmlnvdThird Party Advisory
- www.naganobank.co.jp/soshiki/2/app-ssl.htmlnvdThird Party Advisory
- www.shikokubank.co.jp/info/apps20200128.htmlnvdThird Party Advisory
- www.sihd-bk.jp/common_v2/pdf/20200127.pdfnvdThird Party Advisory
- www.tohoku-bank.co.jp/news/topics/200128_applissl.htmlnvdThird Party Advisory
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