CVE-2020-5523

{"id": "CVE-2020-5523", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.2}]}, "affected": [{"source": "vultures@jpcert.or.jp", "affectedData": [{"vendor": "NTT Data Corporation", "product": "'MyPallete' and some of the Android banking applications that use 'MyPallete'", "versions": [{"status": "affected", "version": "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"}]}]}], "published": "2020-01-28T06:15:12.353", "references": [{"url": "http://jvn.jp/en/jp/JVN28845872/index.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "http://www.dokodemobank.ne.jp/info_20200128_bankingapp.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.77bank.co.jp/pdf/oshirase/20012801_appvulnerability.pdf", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.ashikagabank.co.jp/appbanking/pdf/oshirase.pdf", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.hokkaidobank.co.jp/common/dat/2020/0120/15795047141946146699.pdf", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.hokugin.co.jp/info/archives/personal/2020/1913.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.naganobank.co.jp/soshiki/2/app-ssl.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.shikokubank.co.jp/info/apps20200128.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.sihd-bk.jp/common_v2/pdf/20200127.pdf", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "https://www.tohoku-bank.co.jp/news/topics/200128_applissl.html", "tags": ["Third Party Advisory"], "source": "vultures@jpcert.or.jp"}, {"url": "http://jvn.jp/en/jp/JVN28845872/index.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.dokodemobank.ne.jp/info_20200128_bankingapp.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.77bank.co.jp/pdf/oshirase/20012801_appvulnerability.pdf", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.ashikagabank.co.jp/appbanking/pdf/oshirase.pdf", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.hokkaidobank.co.jp/common/dat/2020/0120/15795047141946146699.pdf", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.hokugin.co.jp/info/archives/personal/2020/1913.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.naganobank.co.jp/soshiki/2/app-ssl.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.shikokubank.co.jp/info/apps20200128.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.sihd-bk.jp/common_v2/pdf/20200127.pdf", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.tohoku-bank.co.jp/news/topics/200128_applissl.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "La aplicaci\u00f3n de Android \"MyPallete\" y algunas de las aplicaciones bancarias de Android basadas en \"MyPallete\" no verifican los certificados X.509 de los servidores, y tampoco comprueban apropiadamente los certificados con incompatibilidad de host, lo que permite a atacantes de tipo man-in-the-middle falsificar servidores y obtener informaci\u00f3n confidencial por medio de un certificado dise\u00f1ado."}], "lastModified": "2026-06-17T03:21:32.180", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:77bank:77_bank:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "7F484419-4038-47D4-85CF-1756BFB67E2A", "versionEndIncluding": "2.0.1"}, {"criteria": "cpe:2.3:a:ashikagabank:ashigin:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "04BF27EE-2955-4517-8A7B-D8F39631B7B6", "versionEndIncluding": "1.0.4"}, {"criteria": "cpe:2.3:a:hokkaidobank:dogin:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "488D7CBE-9389-4DA7-99AE-3AF33FCE5FA8", "versionEndIncluding": "3.0.1"}, {"criteria": "cpe:2.3:a:hokugin:hokuriku_bank_portal:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "8CD46460-45D4-46FC-84F9-7D22EB5B2D27", "versionEndIncluding": "2.0.1"}, {"criteria": "cpe:2.3:a:naganobank:nagagin:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "5B219F59-31DC-48E1-8590-79868C05BB98", "versionEndIncluding": "1.0.1"}, {"criteria": "cpe:2.3:a:nttdata:mypallete:-:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "145255E1-B0C0-4B0B-8C5D-63A21982042C"}, {"criteria": "cpe:2.3:a:shikokubank:shikoku_bank:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "F02DADD1-75A5-4155-A88C-D3383C6BB3CE", "versionEndIncluding": "2.0.1"}, {"criteria": "cpe:2.3:a:sihd-bk:ikeda_senshu_bank:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "396C963D-0260-4BCD-AA7C-0FB6055A298F", "versionEndIncluding": "3.0.4"}, {"criteria": "cpe:2.3:a:tohoku-bank:tougin:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "9FA99794-E4DA-410D-B278-8D5955E2C6BF", "versionEndIncluding": "1.0.1"}], "operator": "OR"}]}], "sourceIdentifier": "vultures@jpcert.or.jp"}