Log in Start free

Vulnerability · Published Jan 28, 2020 · Assigned by jpcert

CVE-2020-5523

High 7.4

In plain English

A high-severity security flaw in 'MyPallete' and some of the Android banking applications that use 'MyPallete' from NTT Data Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS NVD)7.4High
Exploit odds (30 days)1.2%top 32.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
NTT Data Corporation 'MyPallete' and some of the Android banking applications that use 'MyPallete' 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

References