CVE-2020-28052

bouncycastle: password bypass in OpenBSDBCrypt.checkPassword utility possible

Published Dec 18, 2020 CVSS 3.1 · 8.1 High EPSS 7.2% KEV · Not listed
Description
An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password, allowing incorrect passwords to indicate they were matching with previously hashed ones that were different.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-0782 An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password, allowing incorrect passwords to indicate they were matching with previously hashed ones that were different.
Github GHSA Github GHSA GHSA-73xv-w5gp-frxh Logic error in Legion of the Bouncy Castle BC Java
References
Link Providers
https://github.com/bcgit/bc-java/wiki/CVE-2020-28052 cve-icon cve-icon
https://lists.apache.org/thread.html/r167dbc42ef7c59802c2ca1ac14735ef9cf687c25208229993d6206fe%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r175f5a25d100dbe2b1bd3459b3ce882a84c3ff91b120ed4ff2d57b53%40%3Ccommits.pulsar.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r25d53acd06f29244b8a103781b0339c5e7efee9099a4d52f0c230e4a%40%3Ccommits.druid.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r2ddabd06d94b60cfb0141e4abb23201c628ab925e30742f61a04d013%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r30a139c165b3da6e0d5536434ab1550534011b1fdfcd2f5d95892c5b%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r37d332c0bf772f4982d1fdeeb2f88dd71dab6451213e69e43734eadc%40%3Ccommits.pulsar.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r4e1619cfefcd031fac62064a3858f5c9229eef907bd5d8ef14c594fc%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r77af3ac7c3bfbd5454546e13faf7aec21d627bdcf36c9ca240436b94%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r8c36ba34e80e05eecb1f80071cc834d705616f315b634ec0c7d8f42e%40%3Cissues.solr.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r954d80fd18e9dafef6e813963eb7e08c228151c2b6268ecd63b35d1f%40%3Ccommits.druid.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rc9e441c1576bdc4375d32526d5cf457226928e9c87b9f54ded26271c%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rcd37d9214b08067a2e8f2b5b4fd123a1f8cb6008698d11ef44028c21%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rdcbad6d8ce72c79827ed8c635f9a62dd919bb21c94a0b64cab2efc31%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rddd2237b8636a48d573869006ee809262525efb2b6ffa6eff50d2a2d%40%3Cjira.kafka.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rdfd2901b8b697a3f6e2c9c6ecc688fd90d7f881937affb5144d61d6e%40%3Ccommits.druid.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rf9abfc0223747a56694825c050cc6b66627a293a32ea926b3de22402%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rfc0db1f3c375087e69a239f9284ded72d04fbb55849eadde58fa9dc2%40%3Cissues.karaf.apache.org%3E cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2020-28052 cve-icon
https://www.bouncycastle.org/releasenotes.html cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2020-28052 cve-icon
https://www.oracle.com//security-alerts/cpujul2021.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpuApr2021.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpuapr2022.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpujan2022.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpujul2022.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpuoct2021.html cve-icon cve-icon
https://www.synopsys.com/blogs/software-security/cve-2020-28052-bouncy-castle/ cve-icon cve-icon
History
Type Values Removed Values Added
First Time appeared Bouncycastle bc-java
CPEs cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:1.65:*:*:*:*:*:*:*
cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:1.66:*:*:*:*:*:*:*
cpe:2.3:a:bouncycastle:bc-java:1.65:*:*:*:*:*:*:*
cpe:2.3:a:bouncycastle:bc-java:1.66:*:*:*:*:*:*:*
Vendors & Products Bouncycastle legion-of-the-bouncy-castle-java-crytography-api
Bouncycastle bc-java
Type Values Removed Values Added
First Time appeared Redhat jboss Enterprise Application Platform Eus
CPEs cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7
Vendors & Products Redhat jboss Enterprise Application Platform Eus
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2024, 4:33 PM
Reserved
Nov 2, 2020, 12:00 AM
Status
Modified
Published
Dec 18, 2020, 1:15 AM
Modified
Jun 17, 2026, 3:10 AM
Severity
Important
Public date
Dec 18, 2020, 12:00 AM